Objectif The project is aimed at studying the Lya, ß, optical spectra of quasi-molecules of immediate interest for astrophysics, namely: H2+, H2, H2-, HeH+, (HeH)2+ , their isotopes, and (He2)2+, (LiH)2+, (LiH)3+, (LiHe)3+, (LiHe)4+, (C2)11+, (Si2)27+, (Fe2)51+ as well as the influence of macroscopic parameters (electric and magnetic external fields, density of perturbers, isotopic composition, and temperature) on the quasi-molecular spectra and on satellites when they occur. The project integrates the efforts of six teams that share expertise in astrophysics, atomic and molecular physics, plasma physics and can be considered as multi-disciplinary.Research activities comprise analytical and modern computational approaches and include:- The calculation of the energy terms and radiative characteristics for few-electron quasi-molecules.- The theory of quasi-molecular satellites focused on the influence of the interactions between quasi-molecular states, the external static and dynamic electrical and magnetic fields, the density of electron and atoms/ions.- The calculation of semi-classical and fully-quantum spectral profile for specific quasi-molecules,- The radiation transfer studies and calculation of synthetic spectra and the associated modelled atmospheres.The results to be obtained include, formula for the position and width of satellites, potential energy surfaces, radiative characteristics, spectral profiles of the quasi-molecules mentioned above, formulation and solving radiation transfer equation, and conclusions on the observability of quasi-molecular optical transitions in the spectra of stars. In this project, the influence of trajectories, zeros of dipole moments, external fields on quasi-molecular satellites will be studied for the first time. The results are addressed to astrophysics, atomic and molecular physics. The fusion science (inertial or magnetic fusion) community will also welcome the project results for implementing new diagnostics. Mots‑clés Atomic & Molecular Spectroscopy Atomic Phenomena & Statistical Properties of Plasma Interplanetary & Astrophysical Plasma Programme(s) IC-INTAS - International Association for the promotion of cooperation with scientists from the independent states of the former Soviet Union (INTAS), 1993- Thème(s) Data not available Appel à propositions Data not available Régime de financement Data not available Coordinateur UNIVERSIDAD NACIONAL DE EDUCACIÓN A DISTANCIA Contribution de l’UE Aucune donnée Adresse JUAN DEL ROSAL, 12 MADRID Espagne Voir sur la carte Coût total Aucune donnée Participants (5) Trier par ordre alphabétique Trier par contribution de l’UE Tout développer Tout réduire BYURAKAN ASTROPHYSICAL OBSERVATORY Arménie Contribution de l’UE Aucune donnée Adresse BYURAKAN Voir sur la carte Coût total Aucune donnée IV.JAVAKHISHVILI TBILISI STATE UNIVERSITY Géorgie Contribution de l’UE Aucune donnée Adresse CHAVCHAVADZE AVENUE, 3 TBILISI Voir sur la carte Coût total Aucune donnée MAX-PLANCK-INSTITUT FÜR QUANTENOPTIK (MPQ) Allemagne Contribution de l’UE Aucune donnée Adresse KOPFERMANNSTRASSE, 1 GARCHING Voir sur la carte Coût total Aucune donnée ST.PETERSBURG STATE UNIVERSITY Russie Contribution de l’UE Aucune donnée Adresse ULYANOVSKAYA, 1 ST.PETERSBURG Voir sur la carte Coût total Aucune donnée UNIVERSITÉ PIERRE ET MARIE CURIE PARIS VI France Contribution de l’UE Aucune donnée Adresse SITE LE RAPHAEL, RUE GALILÉE, 3 IVRY-SUR-SEINE Voir sur la carte Coût total Aucune donnée