En 2007, Katherine Freese (université du Texas) et ses collaborateurs de l’époque avaient proposé le concept d’ « étoiles sombres » (dark stars), qui auraient pu être la première phase de l'évolution stellaire dans l'histoire de l'univers, des « étoiles » alimentées par le chauffage induit par la matière noire plutôt que par la fusion nucléaire. Freese et d’autres collaborateurs montrent aujourd’hui que trois objets lointains vus par le télescope Webb pourraient ne pas être des galaxies, mais ce nouveau type d’objets… Ils publient leur étude dans Proceedings of the National Academy of Sciences.
Emissions
- Ça Se Passe Là-Haut
- #1525 : Des étoiles sombres énergisées par la matière noire détectées par le télescope Webb ?
Publié le par Eric Simon
Eric Simon
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WHO [E2P] - PODCAST SERIES
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