Radio Microlensing: Past, Present & Near Future
Abstract
Strongly correlated non-intrinsic variability between 5 and 8.5 GHz has been observed in one of the lensed images of the gravitational lens B1600+434. These non-intrinsic (i.e. `external') variations are interpreted as `radio-microlensing' of relativistic micro-arsec-scale jet components in the source at a redshift of z=1.59 by massive compact objects in the halo of the edge-on disk lens galaxy at z=0.41. We shortly summarize these observations and discuss several new observational and theoretical programs to investigate this new phenomenon in more detail.
Cite
@article{arxiv.astro-ph/0011034,
title = {Radio Microlensing: Past, Present & Near Future},
author = {L. V. E. Koopmans and A. G. de Bruyn and C. D. Fassnacht and J. Wambsganss and R. D. Blandford and + CLASS collaboration},
journal= {arXiv preprint arXiv:astro-ph/0011034},
year = {2007}
}
Comments
2 pages, LateX, 1 PostScript figures included, to appear in the proceedings of IAU Symposium 201 `New Cosmological Data and the Values of the Fundamental Parameters' (A. Lasenby and A. Wilkinson, eds.)