A correlation between spin parameter and dark matter halo mass

Details A correlation between spin parameter and dark matter halo mass A correlation between spin parameter and dark matter halo mass

Jan 2011

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2011eas....44...53k&link_type=abstract

EAS Publications Series, Volume 44, 2011, pp.53-56

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Scientific paper

Using a set of high-resolution dark matter only cosmological simulations we found a correlation between the dark matter halo mass M and its spin parameter λ for objects forming at redshifts z > 10: the spin parameter decreases with increasing mass. However, halos forming at later times do not exhibit such a strong correlation, in agreement with the findings of previous studies. While we presented such a correlation in a previous study using the Bullock et al. (2001) spin parameter defintion we now defer to the classical definition showing that the results are independent of the definition.

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