Lens Mapping of Dark Matter Substructure with VSOP-2

Details Lens Mapping of Dark Matter Substructure with VSOP-2 Lens Mapping of Dark Matter Substructure with VSOP-2

Aug 2009

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2009aspc..402..290o&link_type=abstract

Approaching Micro-Arcsecond Resolution with VSOP-2: Astrophysics and Technologies ASP Conference Series, Vol. 402, proceedings o

Astronomy and Astrophysics

Astrophysics

Scientific paper

Hierarchical clustering models of cold dark matter (CDM) predict that about 5% - 10% of a galaxy-sized halo with mass ˜ 1012 solar masses (M&sun; ) resides in substructures (CDM subhalos) with masses ⪉ 108 M&sun;. To directly identify such substructures, we propose to observe radio continuum emission from multiply imaged QSOs using VSOP-2 with a high angular resolution.

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