Halo abundances and shear in void models
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- Alonso_2012_Halo_abundances
Final published version, 587 KB, PDF document
We study the non-linear gravitational collapse of dark matter into halos through numerical N-body simulations of Lemaitre-Tolman-Bondi void models. We extend the halo mass function formalism to these models in a consistent way. This extension not only compares well with the simulated data at all times and radii, but it also gives interesting clues about the impact of the background shear on the growth of perturbations. Our results give hints about the possibility of constraining the background shear via cluster number counts, which could then give rise to strong constraints on general inhomogeneous models, of any scale.
Translated title of the contribution | Halo abundances and shear in void models |
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Original language | English |
Journal | Physics of the Dark Universe |
Volume | 1 |
Issue number | 1-2 |
Pages (from-to) | 24-31 |
Number of pages | 8 |
ISSN | 2212-6864 |
DOIs | |
Publication status | Published - Nov 2012 |
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ID: 42037054