The Detectability of Dark Galaxies Through Image-Splitting Effects

Details The Detectability of Dark Galaxies Through Image-Splitting Effects The Detectability of Dark Galaxies Through Image-Splitting Effects

May 2008

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2008iaus..244..397z&link_type=abstract

Dark Galaxies and Lost Baryons, Proceedings of the International Astronomical Union, IAU Symposium, Volume 244, p. 397-398

Astronomy and Astrophysics

Astronomy

Dark Matter – Galaxies: Halos – Galaxies: Dwarf – Gravitational Lensing – Quasars: General

Scientific paper

In principle, dark galaxies in the dwarf-galaxy mass range may be detectable through additional, small-scale image splitting of quasars that are already known to be multiply-imaged on arcsecond scales. Here, we derive the image separations expected for dark galaxies with density profiles favoured by recent N-body simulations. The results are compared to the angular resolution of existing and planned telescopes at X-ray, optical, near-infrared and radio wavelengths.

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