Résumé / Abstract Journal-club_Doctorants

Séminaire Doctoral / Seminar PhD

« Modelling of primeval galaxies at the JWST era »

Marie Lecroq
Institut d'Astrophysique de Paris (Paris, France)

The James Webb Space Telescope is the largest and most powerful space telescope ever built. One of its main goals will be to study the birth of the first stars and galaxies of our Universe. Preparing for the exploitation of JWST data requires an improvement of the models currently used to interpret the light emitted by primeval galaxies. To reproduce the emission from such galaxies more realistically than possible today, it is necessary to examine the contribution from massive binary stars, which some recent studies suggest could play a significant role in the production of high-energy radiation in these young star-forming regions. Achieving this requires an extensive exploration of the spectral signatures of these stars and their dependence on galaxy physical parameters. It is also crucial to consider a self-consistent implementation for several other physical processes which contribution had not yet been added to this kind of models, such as accretion onto X-Ray binary systems, fast radiative shocks, or more realistic IMFs and stellar formation histories.
vendredi 17 mars 2023 - 16:00
Salle des séminaires Évry Schatzman, Institut d'Astrophysique
Page web du séminaire / Seminar's webpage