Radio Microlensing: Past, Present & Near Future

2; (2) Kapteyn Astronomical Institute; 3); (3) JBO; 4); (4) NFRA-ASTRON; (5) NRAO; (6) U. of Potsdam); A.G. de Bruyn (2; C.D. Fassnacht (5)

arxiv: astro-ph/0011034 · v1 · submitted 2000-11-01 · 🌌 astro-ph

Radio Microlensing: Past, Present & Near Future

L.V.E. Koopmans (1 , 2 , 3) , A.G. de Bruyn (2 , 4) , C.D. Fassnacht (5) , J. Wambsganss (6) , R.D. Blandford (1)

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+ CLASS collaboration ((1) Caltech (2) Kapteyn Astronomical Institute (3) JBO (4) NFRA-ASTRON (5) NRAO (6) U. of Potsdam)

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keywords lensnon-intrinsicb1600beencompactcomponentscorrelateddetail

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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.

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Radio Microlensing: Past, Present & Near Future

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