Séminaire Doctoral / Seminar PhD |
| « How does the cosmic web impact assembly bias? » |
|
Corentin Cadiou |
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Recent development have shown that the halo assembly is in-
fluenced by the large scale structure of the cosmic web, resulting in the so called assembly bias. Using an extension of the excursion set theory constrained to the presence of a filament type structure, I will show how one can compute the accretion rate and formation time of halos and recover that distinct gradients for different quan- tities appear. I will argue that this effect can not be explained by a local rescaling of the density but instead encodes the intrinsic anisotropy of the large scale environment. |
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vendredi 30 mars 2018 - 16:00 Salle du Conseil, Institut d'Astrophysique |
| Page web du séminaire / Seminar's webpage |