The Halo Model and Numerical Simulations | Zendy

Martin White | Zendy; Lars Hernquist | Zendy; Volker Springel | Zendy

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The Halo Model and Numerical Simulations

Author(s) -

Martin White,

Lars Hernquist,

Volker Springel

Publication year - 2001

Publication title -

the astrophysical journal

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 2.376

H-Index - 489

eISSN - 1538-4357

pISSN - 0004-637X

DOI - 10.1086/319644

Subject(s) - halo , astrophysics , physics , galaxy , dark matter , halo mass function , dark matter halo , spectral density , galaxy formation and evolution , cuspy halo problem , statistical physics , astronomy , mathematics , statistics

Recently there has been a lot of attention focussed on a virializedhalo-based approach to understanding the properties of the matter and galaxypower spectrum. A key ingredient in this model is the number and distributionof galaxies within dark matter halos as a function of mass. This quantity hasbeen predicted from semi-analytic modeling and from fits to observational data.Here we present predictions for the occupation number and spatial distributionof sub-halos based on a high-resolution hydrodynamical simulation includingcooling, star-formation and feedback.Comment: 4 pages, 3 figures, matches version accepted by ApJ

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