Direct Detection of CDM Substructure

Details Direct Detection of CDM Substructure Direct Detection of CDM Substructure

2001-11-23

arxiv.org/abs/astro-ph/0111456v2

Astrophys.J. 572 (2002) 25-33

Astronomy and Astrophysics

Astrophysics

ApJ in press, 23 pages, 6 figures

Scientific paper

10.1086/340303

We devise a method to measure the abundance of satellite halos in gravitational lens galaxies, and apply our method to a sample of 7 lens systems. After using Monte Carlo simulations to verify the method, we find that substructure comprises fraction f=0.02 (median, 0.006

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