Dark Matter Substructure in Lensing Galaxies

Details Dark Matter Substructure in Lensing Galaxies Dark Matter Substructure in Lensing Galaxies

2008-04-02

arxiv.org/abs/0804.0282v1

Astronomy and Astrophysics

Astrophysics

4 pages, 3 figures, to appear in the proceedings of "Panoramic Views of Galaxy Formation and Evolution", 1st Subaru Internatio

Scientific paper

To set useful limits on the abundance of small-scale dark matter halos (subhalos) in a galaxy scale, we have carried out mid-infrared imaging and integral-field spectroscopy for a sample of quadruple lens systems showing anomalous flux ratios. These observations using Subaru have been successful for distinguishing millilensing by subhalos from microlensing by stars. Current status for our lensing analysis of dark matter substructure is reported.

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