AAS 205th Meeting, 9-13 January 2005
Session 148 Large Scale Structure
Poster, Thursday, January 13, 2005, 9:20am-4:00pm, Exhibit Hall

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[148.02] The Subhalo Model of Galaxy-Mass Correlations

M. C. Neyrinck, A. J. S. Hamilton (JILA, APS, U. Colorado), N. Y. Gnedin (CASA, APS, U. Colorado)

The standard halo model of large-scale structure has proven to be quite successful. In our alternative, "subhalo" model, the number of galaxies inhabiting each halo is exactly one. With a minimal set of inputs, simple explanations emerge for the bias between galaxies and matter, as well as a simple estimate for the cross-correlation coefficient between them. This model might also allow halo density profiles, and perhaps even the dark matter power spectrum, to be measured from the galaxy-galaxy and galaxy-mass power spectra.

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Bulletin of the American Astronomical Society, 36 5
© 2004. The American Astronomical Society.