Sub-percent calibration of the extragalactic distance scale in the era of big surveys

CORDIS provides links to public deliverables and publications of HORIZON projects.

Links to deliverables and publications from FP7 projects, as well as links to some specific result types such as dataset and software, are dynamically retrieved from OpenAIRE .

Publications

The changing transit shape of TOI-3884 b

Author(s): H. Chakraborty, J. M. Almenara, M. Lendl, D. Ehrenreich, F. Bouchy, X. Bonfils, R. Dancikova, A. Deline, S. Khan, H. Netzel, M. Shinde, A. Verdier
Published in: Astronomy & Astrophysics, Issue 702, 2025, Page(s) A100, ISSN 0004-6361
Publisher: Springer Verlag
DOI: 10.1051/0004-6361/202555998

Quasi-periodic oscillation detected in γ-rays in blazar PKS 0346−27

Author(s): Raj Prince, Anuvab Banerjee, Ajay Sharma, Avik Kumar das, Alok C. Gupta, Debanjan Bose
Published in: Astronomy & Astrophysics, Issue 678, 2023, Page(s) A100, ISSN 0004-6361
Publisher: Springer Verlag
DOI: 10.1051/0004-6361/202346400

First light for the GRAVITY+ Adaptive Optics: Extreme adaptive optics for the Very Large Telescope Interferometer

Author(s): null null, R. Abuter, F. Allouche, C. Bailet, M. Benisty, A. Berdeu, J.-P. Berger, P. Berio, A. Bigioli, C. Blanchard, O. Boebion, H. Bonnet, G. Bourdarot, P. Bourget, W. Brandner, J. Brulé, P. Burgos, M. Carbillet, C. Correia, B. Courtney-Barrer, S. Curaba, R. Davies, D. Defrère, A. Delboulbé, F. Delplancke, R. Dembet, A. Drescher, N. Dubost, A. Eckart, C. Édouard, F. Eisenhauer, L. Esteras O
Published in: Astronomy & Astrophysics, Issue 707, 2026, Page(s) A115, ISSN 0004-6361
Publisher: Springer Verlag
DOI: 10.1051/0004-6361/202555666

Gaia Data Release 3: The extragalactic content

Author(s): Gaia Collaboration, Bailer-Jones C. A. L., Teyssier D., DelchambreL., Ducourant C., Garabato D., Hatzidimitriou D., Klioner S. A.,Rimoldini L., Bellas-Velidis I., Carballo R., Carnerero M. I.,Diener C., Fouesneau M., Galluccio L., Gavras P., Krone-Martins A.,Raiteri C. M., Teixeira R., Brown A. G. A., Vallenari A., PrustiT., de Bruijne J. H. J., Arenou F., Babusiaux C., Biermann M.,Creevey O. L.,
Published in: Astronomy & Astrophysics, Issue in press, 2023, ISSN 0004-6361
Publisher: Springer Verlag
DOI: 10.1051/0004-6361/202243232

Probing the disc–jet coupling in S4 0954+65, PKS 0903−57, and 4C +01.02 with γ-rays

Author(s): Ajay Sharma, Sushanth Reddy Kamaram, Raj Prince, Rukaiya Khatoon, Debanjan Bose
Published in: Monthly Notices of the Royal Astronomical Society, Issue 527, 2023, Page(s) 2672-2686, ISSN 0035-8711
Publisher: Blackwell Publishing Inc.
DOI: 10.1093/mnras/stad3399

Discovery of a dormant 33 solar-mass black hole in pre-release Gaia astrometry

Author(s): null null, P. Panuzzo, T. Mazeh, F. Arenou, B. Holl, E. Caffau, A. Jorissen, C. Babusiaux, P. Gavras, J. Sahlmann, U. Bastian, Ł. Wyrzykowski, L. Eyer, N. Leclerc, N. Bauchet, A. Bombrun, N. Mowlavi, G. M. Seabroke, D. Teyssier, E. Balbinot, A. Helmi, A. G. A. Brown, A. Vallenari, T. Prusti, J. H. J. de Bruijne, A. Barbier, M. Biermann, O. L. Creevey, C. Ducourant, D. W. Evans, R. Guerra, A. Hutt
Published in: Astronomy & Astrophysics, Issue 686, 2024, Page(s) L2, ISSN 0004-6361
Publisher: Springer Verlag
DOI: 10.1051/0004-6361/202449763

An accreting dwarf star orbiting the S-type giant star π1 Gru

Author(s): M. Montargès, J. Malfait, M. Esseldeurs, A. de Koter, F. Baron, P. Kervella, T. Danilovich, A. M. S. Richards, R. Sahai, I. McDonald, T. Khouri, S. Shetye, A. Zijlstra, M. Van de Sande, I. El Mellah, F. Herpin, L. Siess, S. Etoka, D. Gobrecht, L. Marinho, S. H. J. Wallström, K. T. Wong, J. Yates
Published in: Astronomy & Astrophysics, Issue 699, 2025, Page(s) A22, ISSN 0004-6361
Publisher: Springer Verlag
DOI: 10.1051/0004-6361/202452587

Echo mapping of the black hole accretion flow in NGC 7469

Author(s): Raj Prince, Juan V Hernández Santisteban, Keith Horne, J Gelbord, Ian McHardy, R Edelson, C A Onken, F R Donnan, M Vestergaard, S Kaspi, H Winkler, E M Cackett, H Landt, A J Barth, T Treu, S Valenti,
Published in: Monthly Notices of the Royal Astronomical Society, Issue 541, 2025, Page(s) 642-661, ISSN 0035-8711
Publisher: Blackwell Publishing Inc.
DOI: 10.1093/mnras/staf983

HALO

Author(s): Amit Kumar Mandal, Francisco Pozo Nuñez, Vikram Kumar Jaiswal, Mohammad Hassan Naddaf, Bożena Czerny, Swayamtrupta Panda, Paulina Karczmarek, Grzegorz Pietrzyński, Shivangi Pandey, B. M. Peterson, Michal Zajaček, Michal Dovčiak, Vladimir Karas, Weronika Narloch, Mirosław Kicia, Marek Górski, Mikołaj Kałuszyński, Gergely Hajdu, Piotr Wielgórski, Bartłomiej Zgirski, Cezary Gałan, Wojcie
Published in: Astronomy & Astrophysics, Issue 706, 2026, Page(s) A176, ISSN 0004-6361
Publisher: Springer Verlag
DOI: 10.1051/0004-6361/202557795

Accretion disks, quasars and cosmology: meandering towards understanding

Author(s): Bożena Czerny, Shulei Cao, Vikram Kumar Jaiswal, Vladimír Karas, Narayan Khadka, Mary Loli Martínez-Aldama, Mohammad Hassan Naddaf, Swayamtrupta Panda, Francisco Pozo Nuñez, Raj Prince, Bharat Ratra, Marzena Sniegowska, Zhefu Yu & Michal Zajaček
Published in: Astrophysics and Space Science, Issue Astrophysics and Space Science volume 368, Article number: 8 (2023), 2023, ISSN 0004-640X
Publisher: Kluwer Academic Publishers
DOI: 10.1007/s10509-023-04165-7

Detection of Rydberg Lines from the Atmosphere of Betelgeuse

Author(s): W. R. F. Dent, G. M. Harper, A. M. S. Richards, P. Kervella, L. D. Matthews
Published in: The Astrophysical Journal Letters, Issue 966, 2024, Page(s) L13, ISSN 2041-8205
Publisher: Institute of Physics Publishing
DOI: 10.3847/2041-8213/ad3afa

UV FeII emission model of HE 0413−4031 and its relation to broad-line time delays

Author(s): Michal Zajaček, Swayamtrupta Panda, Ashwani Pandey, Raj Prince, Alberto Rodríguez-Ardila, Vikram Jaiswal, Bożena Czerny, Krzysztof Hryniewicz, Maciej Urbanowicz, Piotr Trzcionkowski, Marzena Śniegowska, Zuzanna Fałkowska, Mary Loli Martínez-Aldama, Norbert Werner
Published in: Astronomy & Astrophysics, Issue 683, 2024, Page(s) A140, ISSN 0004-6361
Publisher: Springer Verlag
DOI: 10.1051/0004-6361/202348172

"Standardizing reverberation-mapped <mml:math xmlns:mml=""http://www.w3.org/1998/Math/MathML"" display=""inline""><mml:mi mathvariant=""normal"">H</mml:mi><mml:mi>α</mml:mi></mml:math> and <mml:math xmlns:mml=""http://www.w3.org/1998/Math/MathML"" display=""inline""><mml:mi mathvariant=""normal"">H</mml:mi><mml:mi>β</mml:mi></mml:math> active galactic nuclei using radius-luminosity relations involving mo"

Author(s): Shulei Cao, Amit Kumar Mandal, Michal Zajaček, Bożena Czerny, Bharat Ratra
Published in: Physical Review D, Issue 111, 2025, ISSN 2470-0010
Publisher: American Physical Society (APS)
DOI: 10.1103/physrevd.111.083545

Accretion disks, quasars and cosmology:meandering towards understanding.

Author(s): Bozena Czerny; Shulei Cao; Vikram Kumar Jaiswal; Vladimír Karas; Narayan Khadka; Mary Loli Martínez-Aldama; Mohammad Hassan Naddaf; Swayamtrupta Panda; Francisco Pozo Nuñez; Raj Prince; Bharat Ratra; Marzena Sniegowska; Zhefu Yu; Michal Zajaček
Published in: Astrophysics and Space Science, Issue 368:8, 2023, ISSN 0004-640X
Publisher: Kluwer Academic Publishers
DOI: 10.21203/rs.3.rs-2064605/v1

Modeling time delays from two reprocessors in active galactic nuclei

Author(s): Jaiswal, Vikram Kumar; Prince, Raj; Panda, Swayamtrupta; Czerny, Bożena
Published in: Astronomy & Astrophysics, Issue 670, id.A147, 2023, Page(s) 14 pp., ISSN 0004-6361
Publisher: Springer Verlag
DOI: 10.1051/0004-6361/202244352

The Orbit and Mass of the Cepheid AW Per ∗

Author(s): Nancy Remage Evans, Alexandre Gallenne, Pierre Kervella, Antoine Mérand, John Monnier, Richard I Anderson, H. Moritz Günther, Charles Proffitt, Elaine M. Winston, Grzegorz Pietrzynski, Wolfgang Gieren, Joanna Kuraszkiewicz, Narsireddy Anugu, Rachael M. Roettenbacher, Cyprien Lanthermann, Mayra Gutierrez, Gail Schaefer, Benjamin R. Setterholm, Noura Ibrahim, Stefan Kraus
Published in: The Astrophysical Journal, Issue 972, 2024, Page(s) 145, ISSN 0004-637X
Publisher: University of Chicago Press
DOI: 10.3847/1538-4357/ad5e7d

Detection of time delay between UV and X-ray variability in Mrk 1044 using AstroSat observations

Author(s): M. Reshma, C.S. Stalin, Amit Kumar Mandal, Abhijit Kayal, S.B. Gudennavar, Prajwel Joseph
Published in: Journal of High Energy Astrophysics, Issue 51, 2026, Page(s) 100552, ISSN 2214-4048
Publisher: Elsevier BV
DOI: 10.1016/j.jheap.2026.100552

High-contrast imaging of Galactic Cepheids with VLT/SPHERE

Author(s): A. Gallenne, P. Kervella, N. R. Evans, J. Milli, E. Sivkova, W. Gieren, G. Pietrzyński, G. Bras, V. Hocdé, W. Kiviaho, N. Nardetto, B. Pilecki, B. Zgirski
Published in: Astronomy & Astrophysics, Issue 709, 2026, Page(s) A44, ISSN 0004-6361
Publisher: Springer Verlag
DOI: 10.1051/0004-6361/202658849

Period change rates of Large Magellanic Cloud Cepheids using <scp>mesa</scp>

Author(s): F Espinoza-Arancibia; M Catelan; G Hajdu; N Rodríguez-Segovia; G Boggiano; K Joachimi; C Muñoz-López; C Ordenes-Huanca; C Orquera-Rojas; P Torres; Á Valenzuela-Navarro
Published in: Monthly Notices of the Royal Astronomical Society, Issue MNRAS 517, 1538, 2022, ISSN 1745-3933
Publisher: Blackwell Publishing
DOI: 10.1093/mnras/stac2732

ATOMIUM: Continuum emission and evidence of dust enhancement from binary motion

Author(s): T. Danilovich, N. Samaratunge, Y. L. Mori, A. M. S. Richards, A. Baudry, S. Etoka, M. Montargès, P. Kervella, I. McDonald, C. A. Gottlieb, A. Wallace, D. J. Price, L. Decin, J. Bolte, T. Ceulemans, F. De Ceuster, A. de Koter, D. Dionese, I. El Mellah, M. Esseldeurs, M. Gray, F. Herpin, T. Khouri, E. Lagadec, C. Landri, L. Marinho, K. M. Menten, T. J. Millar, H. S. P. Müller, B. Pimpanuwat, J. M.
Published in: Astronomy & Astrophysics, Issue 704, 2025, Page(s) A341, ISSN 0004-6361
Publisher: Springer Verlag
DOI: 10.1051/0004-6361/202554878

Long-period maser-bearing Miras in the Galactic center. Period-luminosity relations and extinction estimates

Author(s): Lewis, M. O.; Bhattacharya, R.; Sjouwerman, L. O. ; Pihlström, Y. M. ; Pietrzyński, G. ; Sahai, R. ; Karczmarek, P. ; Górski, M.
Published in: Astronomy & Astrophysics, Issue A&A 677, A153, 2023, ISSN 0004-6361
Publisher: Springer Verlag
DOI: 10.1051/0004-6361/202346568

The Components of Cepheid Systems: The FN Vel System

Author(s): Nancy Remage Evans, Pierre Kervella, Joanna Kuraszkiewicz, H. Moritz Günther, Richard I. Anderson, Charles Proffitt, Alexandre Gallenne, Antoine Mérand, Boris Trahin, Giordano Viviani, Shreeya Shetye
Published in: Astrophysical Journal, Issue in press, 2024, ISSN 0004-637X
Publisher: University of Chicago Press
DOI: 10.48550/arxiv.2410.01934

A machine learning method for predicting telescope cycle time applied to the Cerro Murphy Observatory

Author(s): Mirosław Kicia, Mikołaj Kałuszyński, Marek Górski, Rolf Chini, Grzegorz Pietrzyński
Published in: Experimental Astronomy, Issue 58, 2024, ISSN 0922-6435
Publisher: Kluwer Academic Publishers
DOI: 10.1007/s10686-024-09970-8

Multiwavelength study of TeV blazar 1ES 1218+304 using gamma-ray, X-ray and optical observations

Author(s): Rishank Diwan; Raj Prince; Aditi Agarwal; Debanjan Bose; Pratik Majumdar; Aykut Özdönmez; Sunil Chandra; Rukaiya Khatoon; Ergün Ege
Published in: Monthly Notices of the Royal Astronomical Society, Issue MNRAS 524, 4333, 2023, ISSN 1745-3933
Publisher: Blackwell Publishing
DOI: 10.1093/mnras/stad2088

Spectroscopic Reverberation Mapping for SARM: The Case of Mrk 1048 and Mrk 618

Author(s): Shivangi Pandey, Suvendu Rakshit, S. Muneer, Jincen Jose, Ashutosh Tomar, Yan-Rong Li, Jian-Min Wang, C. S. Stalin, Jong-Hak Woo, Romain G. Petrov, James Leftley, Sebastian F. Hönig, Amit Kumar Mandal, Tushar Ubarhande, Shu Wang, Michael Brotherton, Archana Gupta
Published in: The Astrophysical Journal, Issue 995, 2025, Page(s) 31, ISSN 0004-637X
Publisher: University of Chicago Press
DOI: 10.3847/1538-4357/ae13e3

Probing the innermost region of the AU Microscopii debris disc

Author(s): Gallenne, A.; Desgrange, C.; Milli, J.; Sanchez-Bermudez, J.; Chauvin, G.; Kraus, S.; Girard, J. H.; Boccaletti, A.; Lagrange, A. M.; Delorme, P.
Published in: Astronomy & Astrophysics, Issue A&A 665, A41, 2022, ISSN 0004-6361
Publisher: Springer Verlag
DOI: 10.1051/0004-6361/202244226

Gaia Data Release 3: Summary of the content and survey properties

Author(s): Gaia Collaboration, Vallenari A., Brown A. G. A., Prusti T., de Bruijne J. H. J., Arenou F., Babusiaux C., Biermann M., Creevey O. L., Ducourant C., Evans D. W., Eyer L., Guerra R., Hutton A., Jordi C., Klioner S. A., Lammers U. L., Lindegren L., Luri X., Mignard F., Panem C., Pourbaix D., Randich S., Sartoretti P., Soubiran C., Tanga P., Walton N. A., Bailer-Jones C. A. L., Bastian U., Drimmel R.
Published in: Astronomy & Astrophysics, Issue in press, 2023, ISSN 0004-6361
Publisher: Springer Verlag
DOI: 10.1051/0004-6361/202243940

Dusty plasma in active galactic nuclei

Author(s): Czerny, BoŻena; Zajaček, Michal ; Naddaf, Mohammad-Hassan ; Sniegowska, Marzena ; Panda, Swayamtrupta ; RóŻanska, Agata ; Adhikari, Tek P. ; Pandey, Ashwani ; Jaiswal, Vikram Kumar ; Karas, Vladimír ; Borkar, Abhijeet ; Martínez-Aldama, Mary Loli ; Prince, Raj
Published in: The European Physical Journal, Issue The European Physical Journal D volume 77, Article number: 56 (2023), 2023, ISSN 2190-5444
Publisher: Springer Science + Business Media
DOI: 10.1140/epjd/s10053-023-00630-8

The cool brown dwarf Gliese 229 B is a close binary

Author(s): Jerry W. Xuan, A. Mérand, W. Thompson, Y. Zhang, S. Lacour, D. Blakely, D. Mawet, R. Oppenheimer, J. Kammerer, K. Batygin, A. Sanghi, J. Wang, J.-B. Ruffio, M. C. Liu, H. Knutson, W. Brandner, A. Burgasser, E. Rickman, R. Bowens-Rubin, M. Salama, W. Balmer, S. Blunt, G. Bourdarot, P. Caselli, G. Chauvin, R. Davies, A. Drescher, A. Eckart, F. Eisenhauer, M. Fabricius, H. Feuchtgruber, G. Finger, N
Published in: Nature, 2024, ISSN 0028-0836
Publisher: Nature Publishing Group
DOI: 10.1038/s41586-024-08064-x

New Theoretical Fe <scp>ii</scp> Templates for Bright Quasars

Author(s): Ashwani Pandey, Mary Loli Martínez-Aldama, Bożena Czerny, Swayamtrupta Panda, Michal Zajaček, Jian-Min Wang, Yan-Rong Li, Pu Du
Published in: The Astrophysical Journal Supplement Series, Issue 277, 2025, Page(s) 36, ISSN 0067-0049
Publisher: University of Chicago Press
DOI: 10.3847/1538-4365/adb427

The Size of the Continuum Emission Region and Its Scaling Relations with Active Galactic Nucleus Luminosity and the Broad-line Region Size

Author(s): Amit Kumar Mandal, Jong-Hak Woo, Shu Wang
Published in: The Astrophysical Journal, Issue 985, 2025, Page(s) 30, ISSN 0004-637X
Publisher: University of Chicago Press
DOI: 10.3847/1538-4357/adc56e

V659 Cen: System Members Updated

Author(s): Nancy Remage Evans, Charles Proffitt, Pierre Kervella, Joanna Kuraszkiewicz, H. Moritz Günther, Richard I. Anderson, Alexandre Gallenne, Antoine Mérand, Boris Trahin, Giordano Viviani, Shreeya Shetye
Published in: The Astronomical Journal, Issue 170, 2025, Page(s) 242, ISSN 0004-6256
Publisher: American Astronomical Society
DOI: 10.3847/1538-3881/ae03bf

Reevaluating LSST’s Capability for Time Delay Measurements in Quasar Accretion Disks

Author(s): F. Pozo Nuñez, B. Czerny, S. Panda, A. Kovacevic, W. Brandt, K. Horne, null null
Published in: Research Notes of the AAS, Issue 8, 2024, Page(s) 47, ISSN 2515-5172
Publisher: IOP science
DOI: 10.3847/2515-5172/ad284a

X-Rays in Cepheids: Identifying Low-mass Companions of Intermediate-mass Stars

Author(s): Evans Nancy Remage, Engle Scott, Pillitteri Ignazio, Guinan Edward, Günther H. Moritz, Wolk Scott, Neilson Hilding, Marengo Massimo, Matthews Lynn D., Moschou Sofia, Drake Jeremy J., Winston Elaine M., Moe Maxwell, Kervella Pierre, Breuval Louise
Published in: Astrophysical Journal, Issue ApJ 938, 153, 2022, ISSN 0004-637X
Publisher: University of Chicago Press
DOI: 10.3847/1538-4357/ac6fdf

The Araucaria project: High-precision orbital parallaxes and masses of binary stars. I. VLTI/GRAVITY observations of ten double-lined spectroscopic binaries

Author(s): Gallenne A., Mérand A., Kervella P., Graczyk D., Pietrzyński G., Gieren W., Pilecki, B.
Published in: Astronomy & Astrophysics, Issue A&A 672, A119, 2023, ISSN 0004-6361
Publisher: Springer Verlag
DOI: 10.1051/0004-6361/202245712

An Improved Calibration of the Wavelength Dependence of Metallicity on the Cepheid Leavitt Law

Author(s): Louise Breuval, Adam G. Riess, Pierre Kervella, Richard I. Anderson, Martino Romaniello
Published in: Astrophysical Journal, Issue ApJ 939, 89, 2022, ISSN 0004-637X
Publisher: University of Chicago Press
DOI: 10.3847/1538-4357/ac97e2

The binary system of the spinning-top Be star Achernar

Author(s): Pierre Kervella; Simon Borgniet; Armando Domiciano de Souza; Antoine Mérand; Alexandre Gallenne; Thomas Rivinius; Sylvestre Lacour; Alex Carciofi; Daniel Moser Faes; Jean-Baptiste Le Bouquin; Monica Taormina; Bogumił Pilecki; Jean-Philippe Berger; Philippe Bendjoya; Robert Klement; Florentin Millour; Eduardo Janot-Pacheco; Alain Spang; Farrokh Vakili
Published in: Astronomy & Astrophysics, Issue A&A 667, A111, 2022, ISSN 0004-6361
Publisher: Springer Verlag
DOI: 10.1051/0004-6361/202244009

Surface brightness-colour relations of dwarf stars from detached eclipsing binaries

Author(s): D. Graczyk, G. Pietrzyński, C. Galan, N. Miller, W. Gieren, B. Zgirski, G. Hajdu, M. Kałuszyński, R. Chini, A. Gallenne, M. Górski, P. Karczmarek, P. Kervella, M. Kicia, P. F. L. Maxted, N. Nardet
Published in: Astronomy & Astrophysics, Issue 694, 2025, Page(s) A65, ISSN 0004-6361
Publisher: Springer Verlag
DOI: 10.1051/0004-6361/202452065

The Baade-Wesselink projection factor of RR Lyrae stars

Author(s): Garance Bras, Pierre Kervella, Boris Trahin, Piotr Wielgórski, Bartłomiej Zgirski, Antoine Mérand, Nicolas Nardetto, Alexandre Gallenne, Vincent Hocdé, Louise Breuval, Anton Afanasiev, Grzegorz Pietrzyński, Wolfgang Gieren
Published in: Astronomy & Astrophysics, Issue 684, 2024, Page(s) A126, ISSN 0004-6361
Publisher: Springer Verlag
DOI: 10.1051/0004-6361/202348291

Probing the Dust Torus Radius–Luminosity Relation: A WISE View

Author(s): Ashutosh Tomar, Suvendu Rakshit, Amit Kumar Mandal, Shivangi Pandey
Published in: The Astrophysical Journal, Issue 993, 2025, Page(s) 203, ISSN 0004-637X
Publisher: University of Chicago Press
DOI: 10.3847/1538-4357/ae0f96

Simultaneous X-Ray and Optical Polarization Observations of the Blazar Mrk 421

Author(s): Athira M. Bharathan, C. S. Stalin, S. Sahayanathan, Kiran Wani, Amit Kumar Mandal, Rwitika Chatterjee, Santosh Joshi, Jeewan C. Pandey, Blesson Mathew, Vivek K. Agrawal
Published in: The Astrophysical Journal, Issue 975, 2024, Page(s) 185, ISSN 0004-637X
Publisher: University of Chicago Press
DOI: 10.3847/1538-4357/ad8081

Surface brightness-colour relations of dwarf stars from detached eclipsing binaries. I. Calibrating sample

Author(s): Graczyk D., Pietrzyński G., Galan C., Southworth J., Gieren W., Kałuszyński M., Zgirski B., Gallenne A., Górski M., Hajdu G., Karczmarek P., Kervella P., Maxted P. F. L., Nardetto N., Narloch W., Pilecki B., Pych W., Rojas Garcia G., Storm J., Suchomska K., Taormina M., Wielgórski P.
Published in: Astronomy & Astrophysics, Issue A&A 66, A128, 2022, ISSN 0004-6361
Publisher: Springer Verlag
DOI: 10.1051/0004-6361/202244122

A Gaussian process cross-correlation approach to time-delay estimation in active galactic nuclei

Author(s): F. Pozo Nuñez, N. Gianniotis and K. L. Polsterer
Published in: Astronomy & Astrophysics, Issue Volume 674, id.A83, 13 pp, 2023, ISSN 0004-6361
Publisher: Springer Verlag
DOI: 10.1051/0004-6361/202345932

Synthetic Population of Binary Cepheids. II. The Effect of Companion Light on the Extragalactic Distance Scale

Author(s): Paulina Karczmarek; Gergely Hajdu; Grzegorz Pietrzyński; Wolfgang Gieren; Weronika Narloch; Radosław Smolec; Grzegorz Wiktorowicz; Krzysztof Belczynski
Published in: The Astrophysical Journal, Issue ApJ 950, 182, 2023, ISSN 0004-637X
Publisher: University of Chicago Press
DOI: 10.3847/1538-4357/acc845

Evolved eclipsing binary systems in the Galactic bulge: Precise physical and orbital parameters of OGLE-BLG-ECL-305487 and OGLE-BLG-ECL-116218

Author(s): K. Suchomska, D. Graczyk, C. Gałan, O. Ziółkowska, R. Smolec, G. Pietrzynski, W. Gieren, S. Villanova, M. Górski, I. B. Thompson, P. Wielgórski, B. Zgirski, P. Karczmarek, B. Pilecki, M. Taormina, W. Narloch, G. Hajdu, M. Lewis, M. Kałuszynski and G. Rojas García
Published in: Astronomy & Astrophysics, Issue Volume 668, id.A30, 11 pp, 2022, ISSN 0004-6361
Publisher: Springer Verlag
DOI: 10.1051/0004-6361/202244433

Wavelength-resolved reverberation mapping of intermediate-redshift quasars HE 0413-4031 and HE 0435-4312: Dissecting Mg II, optical Fe II, and UV Fe II emission regions

Author(s): Prince, Raj ; Zajaček, Michal ; Panda, Swayamtrupta ; Hryniewicz, Krzysztof ; Kumar Jaiswal, Vikram ; Czerny, Bozena ; Trzcionkowski, Piotr ; Bronikowski, Mateusz ; Rałowski, Mateusz ; Sobrino Figaredo, Catalina ; Loli Martinez-Aldama, Mary ; Śniegowska, Marzena ; Średzińska, Justyna ; Bilicki, Maciej ; Naddaf, Mohammad-Hassan ; Pandey, Ashwani ; Haas, Martin ; Jacek Sarna, Marek ; Pietrzyńs
Published in: Astronomy & Astrophysics, Issue 678, id.A189, 2023, Page(s) 22 pp., ISSN 0004-6361
Publisher: Springer Verlag
DOI: 10.1051/0004-6361/202346738

Spectral variability studies in Active Galactic Nuclei: Exploring continuum and emission line regions in the age of LSST and JWST

Author(s): Panda, Swayamtrupta ; Marziani, Paola ; Czerny, Bozena ; Rodriguez-Ardila, Alberto ; F. Pozo Nuñez
Published in: Universe, Issue Universe 2023, 9, 492, 2023, ISSN 2218-1997
Publisher: MDPI
DOI: 10.3390/universe9120492

"Standardizing a larger, higher-quality, homogeneous sample of reverberation-mapped <mml:math xmlns:mml=""http://www.w3.org/1998/Math/MathML"" display=""inline""><mml:mrow><mml:mi mathvariant=""normal"">H</mml:mi><mml:mi>β</mml:mi></mml:mrow></mml:math> active galactic nuclei using the broad-line region radius-luminosity relation"

Author(s): Shulei Cao, Amit Kumar Mandal, Michal Zajaček, Bharat Ratra
Published in: Physical Review D, Issue 112, 2025, ISSN 2470-0010
Publisher: American Physical Society (APS)
DOI: 10.1103/w1qx-4v84

GaiaData Release 3

Author(s): null null, O. L. Creevey, L. M. Sarro, A. Lobel, E. Pancino, R. Andrae, R. L. Smart, G. Clementini, U. Heiter, A. J. Korn, M. Fouesneau, Y. Frémat, F. De Angeli, A. Vallenari, D. L. Harrison, F. Thévenin, C. Reylé, R. Sordo, A. Garofalo, A. G. A. Brown, L. Eyer, T. Prusti, J. H. J. de Bruijne, F. Arenou, C. Babusiaux, M. Biermann, C. Ducourant, D. W. Evans, R. Guerra, A. Hutton, C. Jordi, S. A.
Published in: Astronomy & Astrophysics, Issue 674, 2023, Page(s) A39, ISSN 0004-6361
Publisher: Springer Verlag
DOI: 10.1051/0004-6361/202243800

Period–luminosity relations for Galactic Type II Cepheids in the Sloan bands

Author(s): W. Narloch, G. Hajdu, G. Pietrzyński, P. Wielgórski, R. Smolec, W. Gieren, B. Zgirski, M. Górski, P. Karczmarek, D. Graczyk
Published in: Astronomy & Astrophysics, Issue 697, 2025, Page(s) A30, ISSN 0004-6361
Publisher: Springer Verlag
DOI: 10.1051/0004-6361/202553733

Cepheids with giant companions

Author(s): Bogumił Pilecki, Ian B. Thompson, Felipe Espinoza-Arancibia, Gergely Hajdu, Wolfgang Gieren, Mónica Taormina, Grzegorz Pietrzyński, Weronika Narloch, Giuseppe Bono, Alexandre Gallenne, Pierre Kervella, Piotr Wielgórski, Bartłomiej Zgirski, Dariusz Graczyk, Paulina Karczmarek, Nancy R. Evans
Published in: Astronomy & Astrophysics, Issue 686, 2024, Page(s) A263, ISSN 0004-6361
Publisher: Springer Verlag
DOI: 10.1051/0004-6361/202349138

Discovery of a Binary-origin Classical Cepheid in a Binary System with a 59 day Orbital Period

Author(s): Bogumił Pilecki, Ian B. Thompson, Felipe Espinoza-Arancibia, Richard I. Anderson, Wolfgang Gieren, Weronika Narloch, Javier Minniti, Grzegorz Pietrzyński, Mónica Taormina, Giuseppe Bono, Gergely Hajdu
Published in: The Astrophysical Journal Letters, Issue Volume 940, Issue 2, id.L48, 5 pp, 2022, ISSN 0004-637X
Publisher: University of Chicago Press
DOI: 10.3847/2041-8213/ac9fcc

Mass of Cepheid V350 Sgr Incorporating Interferometry and the Companion Mass

Author(s): Nancy Remage Evans, Alexandre Gallenne, Pierre Kervella, H. Moritz Günther, Joanna Kuraszkiewicz, Richard I. Anderson, Charles Proffitt, Antoine Mérand, Boris Trahin, Giordano Viviani, Shreeya Shetye
Published in: The Astrophysical Journal, Issue 986, 2025, Page(s) 96, ISSN 0004-637X
Publisher: University of Chicago Press
DOI: 10.3847/1538-4357/add7dc

Versatile light curve templates of Cepheids

Author(s): Garance Bras, Pierre Kervella, Antoine Mérand, Anton Afanasiev, Vincent Hocdé, Nicolas Nardetto, Alexandre Gallenne, Grzegorz Pietrzyński, Manon Bailleul, Wilma Kiviaho
Published in: Astronomy & Astrophysics, Issue 698, 2025, Page(s) A97, ISSN 0004-6361
Publisher: Springer Verlag
DOI: 10.1051/0004-6361/202553783

Projection factor and radii of Type II Cepheids

Author(s): P. Wielgórski, G. Pietrzyński, W. Gieren, B. Zgirski, M. Górski, J. Storm, N. Nardetto, P. Kervella, G. Bras, G. Hajdu, V. Hocdé, B. Pilecki, W. Narloch, P. Karczmarek, W. Pych, R. Chini, K. Hodapp
Published in: Astronomy & Astrophysics, Issue 689, 2024, Page(s) A241, ISSN 0004-6361
Publisher: Springer Verlag
DOI: 10.1051/0004-6361/202450182

Surface brightness–colour relations of Cepheids calibrated by optical interferometry

Author(s): M. C. Bailleul, N. Nardetto, V. Hocdé, P. Kervella, W. Gieren, J. Storm, G. Pietrzyński, A. Gallenne, A. Mérand, G. Bras, A. Recio Blanco, P. de Laverny, P. A. Palicio, A. Afanasiev, W. Kiviaho
Published in: Astronomy & Astrophysics, Issue 698, 2025, Page(s) A46, ISSN 0004-6361
Publisher: Springer Verlag
DOI: 10.1051/0004-6361/202553740

Extracting the X-Ray Reverberation Response Functions from the Active Galactic Nucleus Light Curves Using an Autoencoder

Author(s): Sanhanat Deesamutara, Poemwai Chainakun, Tirawut Worrakitpoonpon, Kamonwan Khanthasombat, Wasutep Luangtip, Jiachen Jiang, Francisco Pozo Nuñez, Andrew J. Young
Published in: The Astrophysical Journal, Issue 980, 2025, Page(s) 257, ISSN 0004-637X
Publisher: University of Chicago Press
DOI: 10.3847/1538-4357/adae85

Dark and bright sides of the Broad Line Region clouds as seen in the FeII emission of SDSS RM 102

Author(s): Alberto Floris, Ashwani Pandey, Bozena Czerny, Mary Loli Martinez Aldama, Swayamtrupta Panda, Paola Marziani, Raj Prince
Published in: Astronomy & Astrophysics, Issue 697, 2025, Page(s) A23, ISSN 0004-6361
Publisher: Springer Verlag
DOI: 10.1051/0004-6361/202452067

Infrared surface brightness technique applied to RR Lyrae stars from the solar neighborhood

Author(s): Bartłomiej Zgirski, Wolfgang Gieren, Grzegorz Pietrzyński, Marek Górski, Piotr Wielgórski, Jesper Storm, Garance Bras, Pierre Kervella, Nicolas Nardetto, Gergely Hajdu, Rolf Chini, Martin Haas
Published in: Astronomy & Astrophysics, Issue 690, 2024, Page(s) A295, ISSN 0004-6361
Publisher: Springer Verlag
DOI: 10.1051/0004-6361/202449850

Covering Factor of the Dust-Driven Broad-Line Region Clouds

Author(s): Mohammad-Hassan Naddaf, Bożena Czerny
Published in: Universe, Issue 10, 2024, Page(s) 29, ISSN 2218-1997
Publisher: MDPI
DOI: 10.3390/universe10010029

Toward Early-type Eclipsing Binaries as Extragalactic Milestones. III. Physical Properties of the O-type Eclipsing Binary OGLE LMC-ECL-21568 in a Quadruple System* , †

Author(s): Mónica Taormina, R.-P. Kudritzki, B. Pilecki, G. Pietrzyński, I. B. Thompson, J. Puls, M. Górski, B. Zgirski, D. Graczyk, W. Gieren, G. Hajdu
Published in: The Astrophysical Journal, Issue 967, 2024, Page(s) 64, ISSN 0004-637X
Publisher: University of Chicago Press
DOI: 10.3847/1538-4357/ad3af0

VLTI/GRAVITY upper limit on near-infrared emission from the nearby 33 M⊙ black hole Gaia BH3

Author(s): Pierre Kervella, Pasquale Panuzzo, Alexandre Gallenne, Antoine Mérand, Frédéric Arenou, Elisabetta Caffau, Sylvestre Lacour, Tsevi Mazeh, Berry Holl, Carine Babusiaux, Nicolas Nardetto, Maïca Clavel, Jean-Baptiste Le Bouquin, Damien Ségransan
Published in: Astronomy & Astrophysics, Issue 695, 2025, Page(s) L1, ISSN 0004-6361
Publisher: Springer Verlag
DOI: 10.1051/0004-6361/202453535

Investigating the origin of optical flares from the TeV blazar S4 0954+65

Author(s): Pandey, Ashwani; Bachev, Rumen ; Czerny, Bożena; Wiita, Paul J.; Gupta, Alok C.; Strigachev, Anton; Popowicz, Adam
Published in: Astronomy & Astrophysics, Issue 679, id.A28, 2023, Page(s) 27 pp., ISSN 0004-6361
Publisher: Springer Verlag
DOI: 10.1051/0004-6361/202347545

Gaia Data Release 3: Stellar multiplicity, a teaser for the hidden treasure

Author(s): Gaia Collaboration, Arenou F., Babusiaux C., Barstow M. A.,Faigler S., Jorissen A., Kervella P., Mazeh T., Mowlavi N.,Panuzzo P., Sahlmann J., Shahaf S., Sozzetti A., Bauchet N.,Damerdji Y., Gavras P., Giacobbe P., Gosset E., Halbwachs J. -L.,Holl B., Lattanzi M. G., Leclerc N., Morel T., Pourbaix D., ReFiorentin P., Sadowski G., Ségransan D., Siopis C., Teyssier D.,Zwitter T., Planquart L., Brow
Published in: Astronomy & Astrophysics, Issue A&A 674, A34, 2023, ISSN 0004-6361
Publisher: Springer Verlag
DOI: 10.1051/0004-6361/202243782

Synthetic Population of Binary Cepheids. I. The Effect of Metallicity and Initial Parameter Distribution on Characteristics of Cepheids’ Companions

Author(s): Paulina Karczmarek, Radosław Smolec, Gergely Hajdu, Grzegorz Pietrzyński, Wolfgang Gieren, Weronika Narloch, Grzegorz Wiktorowicz and Krzysztof Belczynski
Published in: The Astrophysical Journal, Issue Volume 930, Issue 1, id.65, 22 pp, 2022, ISSN 0004-637X
Publisher: University of Chicago Press
DOI: 10.3847/1538-4357/ac6354

Dissecting the broad-band emission from γ-ray blazar PKS 0735+178 in search of neutrinos

Author(s): Raj Prince, Saikat Das, Nayantara Gupta, Pratik Majumdar, Bożena Czerny
Published in: Monthly Notices of the Royal Astronomical Society, Issue 527, 2023, Page(s) 8746-8754, ISSN 0035-8711
Publisher: Blackwell Publishing Inc.
DOI: 10.1093/mnras/stad3804

Spectropolarimetry and spectral decomposition of high-accreting narrow-line Seyfert 1 galaxies

Author(s): Śniegowska, Marzena; Panda, Swayamtrupta; Czerny, Bożena; Savić, Đorge; Martínez-Aldama, Mary Loli; Marziani, Paola; Wang, Jian-Min ; Du, Pu ; Popović, Luka Č.; Saraf, Chandra Shekhar
Published in: Astronomy & Astrophysics, Issue 678, id.A63, 2023, Page(s) 25 pp., ISSN 0004-6361
Publisher: Springer Verlag
DOI: 10.1051/0004-6361/202243434

Gaia Data Release 3. Chemical cartography of the Milky Way

Author(s): Gaia Collaboration, Recio-Blanco A., Kordopatis G., de Laverny P., Palicio P. A., Spagna A., Spina L., Katz D., Re Fiorentin P., Poggio E., McMillan P. J., Vallenari A., Lattanzi M. G., Seabroke G. M., Casamiquela L., Bragaglia A., Antoja T., Bailer-Jones C. A. L., Andrae R., Fouesneau M., Cropper M., Cantat-Gaudin T., Heiter U., Bijaoui A., Brown A. G. A., Prusti T., de Bruijne J. H. J., Arenou F
Published in: Astronomy & Astrophysics, Issue in press, 2023, ISSN 0004-6361
Publisher: Springer Verlag
DOI: 10.1051/0004-6361/202243511

Converging on the Cepheid Metallicity Dependence: Implications of Nonstandard Gaia Parallax Recalibration on Distance Measures

Author(s): Louise Breuval, Gagandeep S. Anand, Richard I. Anderson, Rachael Beaton, Anupam Bhardwaj, Stefano Casertano, Gisella Clementini, Mauricio Cruz Reyes, Giulia De Somma, Martin A. T. Groenewegen, Caroline D. Huang, Pierre Kervella, Saniya Khan, Lucas M. Macri, Marcella Marconi, Javier H. Minniti, Adam G. Riess, Vincenzo Ripepi, Martino Romaniello, Daniel Scolnic, Erasmo Trentin, Piotr Wielgórski, We
Published in: The Astrophysical Journal, Issue 994, 2025, Page(s) 111, ISSN 0004-637X
Publisher: University of Chicago Press
DOI: 10.3847/1538-4357/ae0cb9

The Detection of Possible Transient Quasiperiodic Oscillations in the γ-Ray Light Curve of PKS 0244-470 and 4C+38.41

Author(s): Avik Kumar Das, Raj Prince, Alok C. Gupta, Pankaj Kushwaha
Published in: The Astrophysical Journal, Issue 950, 2024, Page(s) 173, ISSN 0004-637X
Publisher: University of Chicago Press
DOI: 10.3847/1538-4357/acd17f

ARMADA. II. Further Detections of Inner Companions to Intermediate-mass Binaries with Microarcsecond Astrometry at CHARA and VLTI

Author(s): Gardner Tyler, Monnier John D., Fekel Francis C., Le Bouquin Jean-Baptiste, Scovera Adam, Schaefer Gail, Kraus Stefan, Adams Fred C., Anugu Narsireddy, Berger Jean-Philippe, Ten Brummelaar Theo, Davies Claire L., Ennis Jacob, Gies Douglas R., Johnson Keith J. C., Kervella Pierre, Kratter Kaitlin M., Labdon Aaron, Lanthermann Cyprien, Sahlmann Johannes, Setterholm Benjamin R.
Published in: Astronomical Journal, Issue AJ 164, 184, 2022, ISSN 0004-6256
Publisher: American Astronomical Society
DOI: 10.3847/1538-3881/ac8eae

Empirical instability strip for classical Cepheids

Author(s): F. Espinoza-Arancibia, B. Pilecki, G. Pietrzyński, R. Smolec, P. Kervella
Published in: Astronomy & Astrophysics, Issue 682, 2024, Page(s) A185, ISSN 0004-6361
Publisher: Springer Verlag
DOI: 10.1051/0004-6361/202347804

The Orbit and Dynamical Mass of Polaris: Observations with the CHARA Array

Author(s): Nancy Remage Evans, Gail H. Schaefer, Alexandre Gallenne, Guillermo Torres, Elliott P. Horch, Richard I. Anderson, John D. Monnier, Rachael M. Roettenbacher, Fabien Baron, Narsireddy Anugu, James W. Davidson, Pierre Kervella, Garance Bras, Charles Proffitt, Antoine Mérand, Margarita Karovska, Jeremy Jones, Cyprien Lanthermann, Stefan Kraus, Isabelle Codron, Howard E. Bond, Giordano Viviani
Published in: The Astrophysical Journal, Issue 971, 2024, Page(s) 190, ISSN 0004-637X
Publisher: University of Chicago Press
DOI: 10.3847/1538-4357/ad5e7a

Scaling Relations of the Dusty Torus with Luminosity and the Broad-line Region

Author(s): Ashraf Ayubinia, Jong-Hak Woo, Shu Wang, Amit Kumar Mandal, Donghoon Son
Published in: The Astrophysical Journal, Issue 994, 2025, Page(s) 188, ISSN 0004-637X
Publisher: University of Chicago Press
DOI: 10.3847/1538-4357/ae101f

Period-Luminosity Relations for Galactic classical Cepheids in the Sloan bands

Author(s): Weronika Narloch, Gergely Hajdu, Grzegorz Pietrzynski, Wolfgang Gieren, Piotr Wielgorski, Bartłomiej Zgriski, Paulina Karczmarek, Marek Gorski, Dariusz Graczyk
Published in: The Astrophysical Journal, Issue ApJ 953, 14, 2023, ISSN 0004-637X
Publisher: University of Chicago Press
DOI: 10.48550/arxiv.2306.06326

Expectations for time-delay measurements in active galactic nuclei with the Vera Rubin Observatory

Author(s): Bozena Czerny; Swayamtrupta Panda; Raj Prince; Vikram Kumar Jaiswal; Michal Zajaček; Mary Loli Martinez Aldama; Szymon Kozłowski; Andjelka B. Kovacevic; Dragana Ilic; Luka Č. Popović; Francisco Pozo Nuñez; Sebastian F. Hönig; William N. Brandt
Published in: Astronomy & Astrophysics, Issue A&A 163, A163, 2023, ISSN 0004-6361
Publisher: Springer Verlag
DOI: 10.1051/0004-6361/202345844

Period-luminosity and period-luminosity-metallicity relations for Galactic RR Lyrae stars in the Sloan bands

Author(s): W. Narloch, G. Hajdu, G. Pietrzyński, W. Gieren, B. Zgirski, P. Wielgórski, P. Karczmarek, M. Górski, D. Graczyk
Published in: Astronomy & Astrophysics, Issue 689, 2024, Page(s) A138, ISSN 0004-6361
Publisher: Springer Verlag
DOI: 10.1051/0004-6361/202450364

The Local Distance Network: A community consensus report on the measurement of the Hubble constant at ∼1% precision

Author(s): null null, Stefano Casertano, Gagandeep Anand, Richard I. Anderson, Rachael Beaton, Anupam Bhardwaj, John P. Blakeslee, Paula Boubel, Louise Breuval, Dillon Brout, Michele Cantiello, Mauricio Cruz Reyes, Geza Csörnyei, Thomas de Jaeger, Suhail Dhawan, Eleonora Di Valentino, Lluís Galbany, Héctor Gil-Marín, Dariusz Graczyk, Caroline Huang, Joseph B. Jensen, Pierre Kervella, Bruno Leibundgut, Ba
Published in: Astronomy & Astrophysics, Issue 708, 2026, Page(s) A166, ISSN 0004-6361
Publisher: Springer Verlag
DOI: 10.1051/0004-6361/202557993

New Near-Infrared Period-Luminosity-Metallicity Relations for Galactic RR Lyrae Stars Based on Gaia EDR3 Parallaxes

Author(s): Bartłomiej Zgirski, Grzegorz Pietrzyński, Marek Gorski, Wolfgang Gieren, Piotr Wielgorski, Paulina Karczmarek, Gergely Hajdu, Megan Lewis, Rolf Chini, Dariusz Graczyk, Mikołaj Kałuszyński, Weronika Narloch, Bogumił Pilecki, Gonzalo Rojas Garcia, Ksenia Suchomska, Monica Taormina
Published in: The Astrophysical Journal, Issue ApJ 951, 114, 2023, ISSN 0004-637X
Publisher: University of Chicago Press
DOI: 10.3847/1538-4357/acd63a

The Components of Cepheid Systems: The FN Vel System*

Author(s): Nancy Remage Evans, Pierre Kervella, Joanna Kuraszkiewicz, H. Moritz Günther, Richard I. Anderson, Charles Proffitt, Alexandre Gallenne, Antoine Mérand, Boris Trahin, Giordano Viviani, Shreeya Shetye
Published in: The Astronomical Journal, Issue 168, 2024, Page(s) 221, ISSN 0004-6256
Publisher: American Astronomical Society
DOI: 10.3847/1538-3881/ad7fea

On the nature of the continuum reverberation of X-ray/UV and optical emission of IRAS 09149-6206

Author(s): González-Buitrago, D. H.,García-Díaz, Ma T., F. Pozo Nuñez, Guo, Hengxiao
Published in: Monthly Notices of the Royal Astronomical Society, Issue Volume 525, Issue 3, pp.4524-4539, 2023, ISSN 0035-8711
Publisher: Blackwell Publishing Inc.
DOI: 10.1093/mnras/stad2483

Broad-line region in active galactic nuclei: Dusty or dustless?

Author(s): Pandey, Ashwani ; Czerny, Bozena ; Panda, Swayamtrupta ; Prince, Raj ; Jaiswal, Vikram Kumar ; Martinez-Aldama, Mary Loli ; Zajacek, Michal ; Sniegowska, Marzena
Published in: Astronomy & Astrophysics, 2023, ISSN 0004-6361
Publisher: Springer Verlag
DOI: 10.48550/arxiv.2310.05089

Origin of the broadband emission from the transition blazar B2 1308+326

Author(s): Ashwani Pandey, Pankaj Kushwaha, Paul J. Wiita, Raj Prince, Bożena Czerny, C. S. Stalin
Published in: Astronomy & Astrophysics, Issue 681, 2024, Page(s) A116, ISSN 0004-6361
Publisher: Springer Verlag
DOI: 10.1051/0004-6361/202347719

Multiplicity of Galactic Cepheids from long-baseline interferometry

Author(s): A. Gallenne, N. R. Evans, P. Kervella, J. D. Monnier, C. R. Proffitt, G. H. Schaefer, E. M. Winston, J. Kuraszkiewicz, A. Mérand, G. Pietrzyński, W. Gieren, B. Pilecki, S. Kraus, J.-B. Le Bouquin, N. Anugu, T. ten Brummelaar, S. Chhabra, I. Codron, C. L. Davies, J. Ennis, T. Gardner, M. Gutierrez, N. Ibrahim, C. Lanthermann, D. Mortimer, B. R. Setterholm
Published in: Astronomy & Astrophysics, Issue 693, 2025, Page(s) A111, ISSN 0004-6361
Publisher: Springer Verlag
DOI: 10.1051/0004-6361/202452346

An Absolute Calibration of the Near-infrared Period–Luminosity Relations of Type II Cepheids in the Milky Way and in the Large Magellanic Cloud

Author(s): Piotr Wielgórski , Grzegorz Pietrzyński, Bogumił Pilecki, Wolfgang Gieren Bartłomiej Zgirski, Marek Górski, Gergely Hajdu, Weronika Narloch, Paulina Karczmarek, Radosław Smolec, Pierre Kervella, Jesper Storm, Alexandre Gallenne, Louise Breuval, Megan Lewis, Mikołaj Kałuszyński, Dariusz Graczyk, Wojciech Pych, Ksenia Suchomska, Mónica Taormina, Gonzalo Rojas Garcia, Aleksandra Kotek, Rolf
Published in: The Astrophysical Journal, Issue Volume 927, Issue 1, id.89, 2022, ISSN 0004-637X
Publisher: University of Chicago Press
DOI: 10.3847/1538-4357/ac470c

Fundamental effective temperature measurements for eclipsing binary stars – V. The circumbinary planet system EBLM J0608–59

Author(s): P F L Maxted, N J Miller, D Sebastian, A H M J Triaud, D V Martin, A Duck
Published in: Monthly Notices of the Royal Astronomical Society, Issue 531, 2024, Page(s) 4577-4583, ISSN 0035-8711
Publisher: Blackwell Publishing Inc.
DOI: 10.1093/mnras/stae1434

Reconstruction of Cepheid radial velocity curves from the shape of the V-band light curves

Author(s): V. Hocdé, P. Moskalik, N. Nardetto, P. Kervella, B. Pilecki, R. Smolec, G. Pietrzyński, W. Gieren, G. Hajdu, A. Gallenne, M. C. Bailleul, G. Bras, P. Wielgórski, L. Breuval, A. Mérand, R. S. Rathour, F. Espinoza-Arancibia, W. Kiviaho, B. Apostolova, K. Sivkova
Published in: Astronomy & Astrophysics, Issue 709, 2026, Page(s) A151, ISSN 0004-6361
Publisher: Springer Verlag
DOI: 10.1051/0004-6361/202659074

Effects of heterogeneous data sets and time-lag measurement techniques on cosmological parameter constraints from Mg <scp>ii</scp> and C <scp>iv</scp> reverberation-mapped quasar data

Author(s): Shulei Cao, Michal Zajaček, Bożena Czerny, Swayamtrupta Panda, Bharat Ratra
Published in: Monthly Notices of the Royal Astronomical Society, Issue 528, 2024, Page(s) 6444-6469, ISSN 0035-8711
Publisher: Blackwell Publishing Inc.
DOI: 10.1093/mnras/stae433

Surface brightness–colour relations of Milky Way and Magellanic Clouds classical Cepheids based on Gaia magnitudes

Author(s): M. C. Bailleul, N. Nardetto, V. Hocdé, P. Kervella, W. Gieren, J. Storm, G. Pietrzyński, A. Gallenne, D. Graczyk, G. Bras, O. Creevey, A. Recio Blanco, P. de Laverny, P. A. Palicio, W. Kiviaho
Published in: Astronomy & Astrophysics, Issue 706, 2026, Page(s) A336, ISSN 0004-6361
Publisher: Springer Verlag
DOI: 10.1051/0004-6361/202557995

Extinction biases quasar luminosity distances determined from quasar UV and X-ray flux measurements

Author(s): Zajaček, Michal; Czerny, Bożena; Khadka, Narayan; Prince, Raj; Panda, Swayamtrupta; Martínez-Aldama, Mary Loli; Ratra, Bharat
Published in: Monthly Notices of the Royal Astronomical Society, Issue arXiv:2305.08179, 2023, ISSN 0035-8711
Publisher: Blackwell Publishing Inc.
DOI: 10.48550/arxiv.2305.08179

Chemical tracers of a highly eccentric AGB–main-sequence star binary

Author(s): T. Danilovich, J. Malfait, M. Van de Sande, M. Montargès, P. Kervella, F. De Ceuster, A. Coenegrachts, T. J. Millar, A. M. S. Richards, L. Decin, C. A. Gottlieb, C. Pinte, E. De Beck, D. J. Price, K. T. Wong, J. Bolte, K. M. Menten, A. Baudry, A. de Koter, S. Etoka, D. Gobrecht, M. Gray, F. Herpin, M. Jeste, E. Lagadec, S. Maes, I. McDonald, L. Marinho, H. S. P. Müller, B. Pimpanuwat, J. M. C. P
Published in: Nature Astronomy, Issue 8, 2024, Page(s) 308-327, ISSN 2397-3366
Publisher: Nature Research
DOI: 10.1038/s41550-023-02154-y

Metallicities and ages for star clusters and their surrounding fields in the Large Magellanic Cloud

Author(s): W. Narloch , G. Pietrzynski, W. Gieren, A. E. Piatti, P. Karczmarek, M. Górski, D. Graczyk, R. Smolec, G. Hajdu, K. Suchomska, B. Zgirski, P. Wielgórski, B. Pilecki, M. Taormina, M. Kałuszynski, W. Pych, G. Rojas García and M. O. Lewis
Published in: Astronomy & Astrophysics, Issue Volume 666, id.A80, 39 pp, 2022, ISSN 0004-6361
Publisher: Springer Verlag
DOI: 10.1051/0004-6361/202243378

The celestial reference frame (Gaia-CRF3)

Author(s): Gaia Collaboration; Klioner, S. A.; Lindegren, L.; Mignard, F.; Hernández, J.; Ramos-Lerate, M.; Bastian, U.; Biermann, M.; Bombrun, A.; de Torres, A.; Gerlach, E.; Geyer, R.; Hilger, T.; Hobbs, D.; Lammers, U. L.; McMillan, P. J.; Steidelmüller, H.; Teyssier, D.; Raiteri, C. M.; Bartolomé, S.; Bernet, M.; Castañeda, J.; Clotet, M.; Davidson, M.; Fabricius, C.; Torres, N. Garralda; González-V
Published in: Astronomy & Astrophysics, Issue A&A 667, A148, 2022, ISSN 0004-6361
Publisher: Springer Verlag
DOI: 10.1051/0004-6361/202243483

Distance to the globular cluster M 3 from the infrared surface brightness technique applied to RR Lyrae stars

Author(s): Bartłomiej Zgirski, Wolfgang Gieren, Grzegorz Pietrzyński, Gergely Hajdu, Piotr Wielgórski, Marek Górski, Jesper Storm, Nicolas Nardetto, Alexandre Gallenne, Garance Bras, Pierre Kervella, Paulina Karczmarek, Weronika Narloch
Published in: Astronomy & Astrophysics, Issue 706, 2026, Page(s) A268, ISSN 0004-6361
Publisher: Springer Verlag
DOI: 10.1051/0004-6361/202556144

Gaia Data Release 3

Author(s): null null, M. Schultheis, H. Zhao, T. Zwitter, D. J. Marshall, R. Drimmel, Y. Frémat, C. A. L. Bailer-Jones, A. Recio-Blanco, G. Kordopatis, P. de Laverny, R. Andrae, T. E. Dharmawardena, M. Fouesneau, R. Sordo, A. G. A. Brown, A. Vallenari, T. Prusti, J. H. J. de Bruijne, F. Arenou, C. Babusiaux, M. Biermann, O. L. Creevey, C. Ducourant, D. W. Evans, L. Eyer, R. Guerra, A. Hutton, C. Jordi, S. A
Published in: Astronomy & Astrophysics, Issue 674, 2023, Page(s) A40, ISSN 0004-6361
Publisher: Springer Verlag
DOI: 10.1051/0004-6361/202243283

New evidence about HW Vir’s circumbinary planets from Hipparcos-Gaia astrometry and a reanalysis of the eclipse timing variations using nested sampling

Author(s): Thomas A Baycroft; Amaury H M J Triaud; Pierre Kervella
Published in: Monthly Notices of the Royal Astronomical Society, Issue MNRAS 526, 2241, 2023, ISSN 1745-3933
Publisher: Blackwell Publishing
DOI: 10.1093/mnras/stad2794

Effect of Extinction on Quasar Luminosity Distances Determined from UV and X-Ray Flux Measurements

Author(s): Michal Zajaček, Bożena Czerny, Narayan Khadka, Mary Loli Martínez-Aldama, Raj Prince, Swayamtrupta Panda, Bharat Ratra
Published in: The Astrophysical Journal, Issue 961, 2024, Page(s) 229, ISSN 0004-637X
Publisher: University of Chicago Press
DOI: 10.3847/1538-4357/ad11dc

The orbital parameters of the δ Cep inner binary system determined using 2019 HARPS-N spectroscopic data

Author(s): N. Nardetto, V. Hocdé, P. Kervella, A. Gallenne, W. Gieren, D. Graczyk, A. Merand, M. Rainer, J. Storm, G. Pietrzyński, B. Pilecki, E. Poretti, M. Bailleul, G. Bras, A. Afanasiev
Published in: Astronomy & Astrophysics, Issue 684, 2024, Page(s) L9, ISSN 0004-6361
Publisher: Springer Verlag
DOI: 10.1051/0004-6361/202449600

Ultraviolet variability in radio-loud active galactic nuclei observed by UVIT onboard AstroSat

Author(s): M. Reshma, C.S. Stalin, Amit Kumar Mandal, S.B. Gudennavar, Senorita Benedict, Prajwel Joseph
Published in: Journal of High Energy Astrophysics, Issue 53, 2026, Page(s) 100601, ISSN 2214-4048
Publisher: Elsevier BV
DOI: 10.1016/j.jheap.2026.100601

Spectrophotometric Reverberation Mapping of Intermediate-mass Black Hole NGC 4395

Author(s): Shivangi Pandey, Suvendu Rakshit, Krishan Chand, C. S. Stalin, Hojin Cho, Jong-Hak Woo, Priyanka Jalan, Amit Kumar Mandal, Amitesh Omar, Jincen Jose, Archana Gupta
Published in: The Astrophysical Journal, Issue 976, 2024, Page(s) 116, ISSN 0004-637X
Publisher: University of Chicago Press
DOI: 10.3847/1538-4357/ad7fe1

Circumstellar emission of Cepheids across the instability strip: Mid-infrared observations with VLTI/MATISSE

Author(s): V. Hocdé, A. Matter, N. Nardetto, A. Gallenne, P. Kervella, A. Mérand, G. Pietrzyński, W. Gieren, J. Leftley, S. Robbe-Dubois, B. Lopez, M. C. Bailleul, G. Bras, R. Smolec, P. Wielgórski, G. Hajdu, A. Afanasiev
Published in: Astronomy & Astrophysics, Issue 694, 2025, Page(s) A101, ISSN 0004-6361
Publisher: Springer Verlag
DOI: 10.1051/0004-6361/202452827

X-ray properties of RR Lyrae and Cepheid variables from eROSITA

Author(s): Krystian Iłkiewicz, Henryka Netzel
Published in: Astronomy & Astrophysics, Issue 705, 2026, Page(s) A231, ISSN 0004-6361
Publisher: Springer Verlag
DOI: 10.1051/0004-6361/202557199

Evidence for the Keplerian orbit of a close companion around a giant star

Author(s): Mats Esseldeurs, Leen Decin, Joris De Ridder, Yoshiya Mori, Amanda I. Karakas, Jolien Malfait, Taíssa Danilovich, Stéphane Mathis, Anita M. S. Richards, Raghvendra Sahai, Jeremy Yates, Marie Van de Sande, Maarten Baes, Alain Baudry, Jan Bolte, Thomas Ceulemans, Frederik De Ceuster, Ileyk El Mellah, Sandra Etoka, Carl Gottlieb, Fabrice Herpin, Pierre Kervella, Camille Landri, Louise Marinho, Iain
Published in: Nature Astronomy, Issue 10, 2026, Page(s) 124-143, ISSN 2397-3366
Publisher: Springer Science and Business Media LLC
DOI: 10.1038/s41550-025-02697-2

Probing the C iv Continuum Size–Luminosity Relation in Active Galactic Nuclei with Photometric Reverberation Mapping

Author(s): Swayamtrupta Panda, Francisco Pozo Nuñez, Eduardo Bañados, Jochen Heidt
Published in: The Astrophysical Journal Letters, Issue 968, 2024, Page(s) L16, ISSN 2041-8205
Publisher: Institute of Physics Publishing
DOI: 10.3847/2041-8213/ad5014

Exomoon search with VLTI/GRAVITY around the substellar companion HD 206893 B

Author(s): Q. Kral, J. Wang, J. Kammerer, S. Lacour, M. Malin, T. Winterhalder, B. Charnay, C. Perrot, P. Huet, R. Abuter, A. Amorim, W. O. Balmer, M. Benisty, J.-P. Berger, H. Beust, S. Blunt, A. Boccaletti, M. Bonnefoy, H. Bonnet, M. S. Bordoni, G. Bourdarot, W. Brandner, F. Cantalloube, P. Caselli, G. Chauvin, A. Chavez, A. Chomez, E. Choquet, V. Christiaens, Y. Clénet, V. Coudé du Foresto, A. Cridland,
Published in: Astronomy & Astrophysics, Issue 705, 2026, Page(s) A217, ISSN 0004-6361
Publisher: Springer Verlag
DOI: 10.1051/0004-6361/202557127

Application of the FRADO model of broad line region formation to Seyfert galaxy NGC 5548 and a first step toward determining the Hubble constant

Author(s): Vikram Kumar Jaiswal, Amit Kumar Mandal, Raj Prince, Ashwani Pandey, Mohammad Hassan Naddaf, Bożena Czerny, Swayamtrupta Panda, Francisco Pozo Nuñez
Published in: Astronomy & Astrophysics, Issue 702, 2025, Page(s) A92, ISSN 0004-6361
Publisher: Springer Verlag
DOI: 10.1051/0004-6361/202452497

Modelling photometric reverberation mapping data for the next generation of big data surveys. Quasar accretion discs sizes with the LSST

Author(s): F Pozo Nuñez, C Bruckmann, S Deesamutara, B Czerny, S Panda, AP Lobban, G Pietrzyński, KL Polsterer.
Published in: Monthly Notices of the Royal Astronomical Society, Issue Volume 522, Issue 2, pp.2002-2018, 2023, ISSN 0035-8711
Publisher: Blackwell Publishing Inc.
DOI: 10.1093/mnras/stad286

Binary Cepheids: Insights from a simulation-based approach

Author(s): P. Karczmarek
Published in: Contributions of the Astronomical Observatory Skalnaté Pleso, Issue 55, 2025, ISSN 1335-1842
Publisher: Astronomicky Ustav SAV
DOI: 10.31577/caosp.2025.55.3.152

Stellar and substellar companions from Gaia EDR3. Proper-motion anomaly and resolved common proper-motion pairs

Author(s): Pierre Kervella, Frédéric Arenou, Frédéric Thevenin
Published in: Astronomy & Astrophysics, Issue A&A 657, A7, 2022, ISSN 0004-6361
Publisher: Springer Verlag
DOI: 10.1051/0004-6361/202142146

GaiaData Release 3

Author(s): null null, J. De Ridder, V. Ripepi, C. Aerts, L. Palaversa, L. Eyer, B. Holl, M. Audard, L. Rimoldini, A. G. A. Brown, A. Vallenari, T. Prusti, J. H. J. de Bruijne, F. Arenou, C. Babusiaux, M. Biermann, O. L. Creevey, C. Ducourant, D. W. Evans, R. Guerra, A. Hutton, C. Jordi, S. A. Klioner, U. L. Lammers, L. Lindegren, X. Luri, F. Mignard, C. Panem, D. Pourbaix, S. Randich, P. Sartoretti, C. Soubi
Published in: Astronomy & Astrophysics, Issue 674, 2024, Page(s) A36, ISSN 0004-6361
Publisher: Springer Verlag
DOI: 10.1051/0004-6361/202243767

Precise physical parameters of three late-type eclipsing binary giant stars in the Large Magellanic Cloud

Author(s): G. Rojas García, D. Graczyk, G. Pietrzyński, C. Gałan, W. Gieren, I. Thompson, K. Suchomska, M. Kałuszyński, I. Soszyński, A. Udalski, P. Karczmarek, W. Narloch, M. Górski, P. Wielgórski, B. Zgirski, N. Miller, G. Hajdu, B. Pilecki, M. Taormina, M. Lewis
Published in: Astronomy & Astrophysics, Issue 692, 2024, Page(s) A110, ISSN 0004-6361
Publisher: Springer Verlag
DOI: 10.1051/0004-6361/202451720

Astrometric detection of a Neptune-mass candidate planet in the nearest M-dwarf binary system GJ65 with VLTI/GRAVITY

Author(s): null null, R. Abuter, A. Amorim, M. Benisty, J. P. Berger, H. Bonnet, G. Bourdarot, P. Bourget, W. Brandner, Y. Clénet, R. Davies, F. Delplancke-Ströbele, R. Dembet, A. Drescher, A. Eckart, F. Eisenhauer, H. Feuchtgruber, G. Finger, N. M. Förster Schreiber, P. Garcia, R. Garcia-Lopez, F. Gao, E. Gendron, R. Genzel, S. Gillessen, M. Hartl, X. Haubois, F. Haussmann, T. Henning, S. Hippler, M. Hor
Published in: Astronomy & Astrophysics, Issue 685, 2024, Page(s) L9, ISSN 0004-6361
Publisher: Springer Verlag
DOI: 10.1051/0004-6361/202449547

Discovery of ionized circumstellar gas emission around the long-period Cepheid ℓ Carinae with ALMA

Author(s): V. Hocdé, T. Kamiński, M. Lewis, N. Nardetto, P. Kervella, G. Pietrzyński
Published in: Astronomy & Astrophysics, Issue 694, 2025, Page(s) L15, ISSN 0004-6361
Publisher: Springer Verlag
DOI: 10.1051/0004-6361/202453221

HARPS-N high spectral resolution observations of Cepheids. II. The impact of the surface-brightness color relation on the Baade-Wesselink projection factor of η Aql

Author(s): Nardetto N., Gieren W., Storm J., Hocdé V., Pietrzyński G., Kervella P., Mérand A., Gallenne A., Graczyk D., Pilecki B., Poretti E., Rainer M., Zgirski B., Wielgórski P., Hajdu G., Górski M., Karczmarek P., Narloch W., Taormina M.
Published in: Astronomy & Astrophysics, Issue A&A 671, A14, 2023, ISSN 0004-6361
Publisher: Springer Verlag
DOI: 10.1051/0004-6361/202245298

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