Second Moment of Halo Occupation Number
- 10 September 2002
- journal article
- Published by American Astronomical Society in The Astrophysical Journal
- Vol. 576 (2) , L105-L108
- https://doi.org/10.1086/343762
Abstract
The halo approach to large scale structure provides a physically motivated model to understand clustering properties of galaxies. An important aspect of the halo model involves a description on how galaxies populate dark matter halos or what is now called the halo occupation distribution. We discuss a way in which clustering information, especially in the non-linear regime, can be used to determine moments of this halo occupation number. We invert the non-linear part of the real space power spectrum from the PSCz survey to determine the second moment of the halo occupation distribution in a model independent manner. The precise measurement of higher order correlations can eventually be used to determine successive higher order moments of this distribution.Comment: 4 pages, 3 figures; ApJL submitteKeywords
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