Séminaire / Seminar GReCO |
| « Probing Dark Matter Interactions with Cosmological Observables » |
|
Arnab Paul |
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Dark matter is the second most abundant species of the
universe, its evidence being based on gravitational signatures. Non-gravitational interactions of DM with the other known species can make the perturbations evolve differently, hence leaving its signature in the cosmological structures. So, cosmological observations looking for these perturbations, namely Cosmic Microwave Background (CMB), matter power spectrum are suitable places to look for imprints of such interactions. In this talk, I shall discuss the effect of DM-neutrino and DM-electron interaction in CMB, reionization history and discuss the constraints on the same from these observations. |
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lundi 25 novembre 2024 - 11:00 Salle des séminaires Évry Schatzman Institut d'Astrophysique de Paris |
| Pages web du séminaire / Seminar's webpage |