Low mass dark matter halos in voids

Details Low mass dark matter halos in voids Low mass dark matter halos in voids

2002-07-23

arxiv.org/abs/astro-ph/0207487v1

Astronomy and Astrophysics

Astrophysics

2 pages, 1 figure, to appear in "Galaxy Evolution: Theory and Observations (2002)"

Scientific paper

Using numerical simulations and the Sheth-Tormen approximation we study the mass function of dark matter halos in voids. We find that the void mass function is significantly lower and its shape is different than that of the field halos. We predict that in the standard LCDM model a void with radius 10 h^-1 Mpc should have 50 halos with circular velocity v_c > 50 km/s and 600 halos with v_c > 20 km/s.

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