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Collapse Barriers and Halo Abundance: Testing the Excursion Set Ansatz
Brant Robertson, Andrey Kravtsov, Jeremy Tinker +1
Our heuristic understanding of the abundance of dark matter halos centers around the concept of a density threshold, or "barrier", for gravitational collapse. If one adopts the ans…
Extending Recovery of the Primordial Matter Power Spectrum
Jaiyul Yoo, David H. Weinberg, Jeremy L. Tinker +2
The shape of the primordial matter power spectrum Plin(k) encodes critical information on cosmological parameters. At large scales, the observable galaxy power spectrum Pobs(k) is…
Toward a halo mass function for precision cosmology: the limits of universality
Jeremy L Tinker, Andrey V Kravtsov, Anatoly Klypin +5
We measure the mass function of dark matter halos in a large set of collisionless cosmological simulations of flat LCDM cosmology and investigate its evolution at z<~2. Halos are i…
On the Luminosity Dependence of the Galaxy Pairwise Velocity Dispersion
Jeremy L. Tinker, Peder Norberg, David H. Weinberg +1
(Abridged) We make predictions for the pairwise velocity dispersion (PVD) of galaxies with models that are constrained to match the projected correlation function and luminosity fu…
Cosmic Voids and Galaxy Bias in the Halo Occupation Framework
Jeremy L. Tinker, David H. Weinberg, Michael S. Warren
(Abridged) We investigate the power of void statistics to constrain galaxy bias and the amplitude of dark matter fluctuations. We use the halo occupation distribution (HOD) framewo…
On the Mass-to-Light Ratio of Large Scale Structure
Jeremy L. Tinker, David H. Weinberg, Zheng Zheng +1
We examine the dependence of the mass-to-light (M/L) ratio of large-scale structure on cosmological parameters, in models that are constrained to match observations of the projecte…