Science-advisor
REGISTER info/FAQ
Login
username
password
     
forgot password?
register here
 
Research articles
  search articles
  reviews guidelines
  reviews
  articles index
My Pages
my alerts
  my messages
  my reviews
  my favorites
 
 
Stat
Members: 3643
Articles: 2'488'730
Articles rated: 2609

29 March 2024
 
  » arxiv » astro-ph/0304315

 Article overview


A simple model for the clustering of subhalos as a function of mass
Michael R. Blanton ;
Date 16 Apr 2003
Subject astro-ph
AbstractAstrophysicists do not associate galaxies with the massive dark matter halos so easily detected in particle simulations and whose mass function can be predicted by the Press-Schechter formalism and its variants. Instead, they associate galaxies with smaller surviving subhalos whose contents do not fully mix into the larger dark matter halos they exist in. However, these subhalos are as of now difficult to find in simulations. I present a simple description of what the Press-Schechter formalism can say about the clustering of these subhalos, under the restrictive assumption that at fixed subhalo mass, the chance of survival of the subhalo is independent of its larger scale environment. This model predicts a weak dependence of clustering on mass below masses of about 10^12 solar masses, in agreement with observations of a weak dependence of clustering on luminosity at luminosities less than L*. The model is in qualitative agreement with observations that at low luminosities galaxy clustering is a strong function of color while at high luminosities galaxy clustering is a strong function of luminosity.
Source arXiv, astro-ph/0304315
Services Forum | Review | PDF | Favorites   
 
Visitor rating: did you like this article? no 1   2   3   4   5   yes

No review found.
 Did you like this article?

This article or document is ...
important:
of broad interest:
readable:
new:
correct:
Global appreciation:

  Note: answers to reviews or questions about the article must be posted in the forum section.
Authors are not allowed to review their own article. They can use the forum section.

browser claudebot






ScienXe.org
» my Online CV
» Free


News, job offers and information for researchers and scientists:
home  |  contact  |  terms of use  |  sitemap
Copyright © 2005-2024 - Scimetrica