2001/08/31 by Ryan Scranton · 1 citation
Environmental Science · Physics and Astronomy · #Galaxies: Formation, Evolution, Phenomena #Remote Sensing in Agriculture #astro-ph
paper · pdf · doi:10.1046/j.1365-8711.2002.05325.x
published as Mon.Not.Roy.Astron.Soc. 332 (2002) 697 · 8 pages, 9 figures, submitted to MNRAS; minor typos corrected
arxiv created 2001/12/14 · openalex publication_date 2002/05/21 · arxiv updated 2009/12/01 · openalex created_date 2016/06/24 · openalex updated_date 2026/07/29
We extend the mass-halo formalism for analytically generating power spectra to allow for the different clustering behaviour observed in galaxy subpopulations. Although applicable to other separations, we concentrate our methods on a simple separation by rest-frame colour into ‘red’ and ‘blue’ subpopulations through modifications to the 〈N〉(M) relations and halo distribution functions for each of the subpopulations. This sort of separation is within the capabilities of the current generations of simulations as well as galaxy surveys, suggesting a potentially powerful observational constraint for current and future simulations. In anticipation of this, we demonstrate the sensitivity of the resulting power spectra to the choice of model parameters.