The Detectability of Dark Galaxies Through Image-Splitting Effects

E. Zackrisson, T. Riehm, H. Lietzen, O. Möller, K. Wiik, P. Nurmi
2007 Proceedings of the International Astronomical Union  
AbstractIn 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.
doi:10.1017/s1743921307014457 fatcat:sxsn7v4zqfhvjczk2b3gfsq4cu