Extrinsic Radio Variability of JVAS/CLASS Gravitational Lenses

L. V. E. Koopmans, A. Biggs, R. D. Blandford +6

We present flux-ratio curves of the fold and cusp (i.e. close multiple) images of six JVAS/CLASS gravitational lens systems. The data were obtained over a period of 8.5 months in 2…