The Subhalo Model of Galaxy-Mass Correlations

Details The Subhalo Model of Galaxy-Mass Correlations The Subhalo Model of Galaxy-Mass Correlations

Dec 2004

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2004aas...20514802n&link_type=abstract

American Astronomical Society Meeting 205, #148.02; Bulletin of the American Astronomical Society, Vol. 36, p.1596

Astronomy and Astrophysics

Astronomy

Scientific paper

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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