Astronomy and Astrophysics – Astrophysics
Scientific paper
2000-11-01
Astronomy and Astrophysics
Astrophysics
2 pages, LateX, 1 PostScript figures included, to appear in the proceedings of IAU Symposium 201 `New Cosmological Data and th
Scientific paper
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.
Blandford Roger. D.
collaboration + CLASS
de Bruyn Ger A.
Fassnacht Chris D.
Koopmans Leon V. E.
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