P.G. Edwards , J.E.J. Lovell , H. Hirabayashi , D.L. Jauncey S. Toft, PASA, 18 (2), in press.
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Conclusion
We have commenced a monitoring program to measure the time delay in B1152+199. Initial synthesis observations revealed a high rotation measure in the weaker lensed component indicating the light from this component passes much closer to the centre of the lensing galaxy, which is confirmed by the optical studies of Toft et al. (2000). The full-synthesis observations also resulted in the discovery of a new component, component D, on the opposite side of the lensed images from the component C of Myers et al. (1999). These components are presumably associated with radio lobes from either the background quasar or the foreground galaxy. Monitoring observations with the ATCA between June and September 2000 show no significant variation in flux density, but there is some indication of variability between VLA observations in April 1998 and the start of our ATCA monitoring program. Preliminary modelling predicts a time delay of 
50days for the system, in agreement with the results of Toft et al. (2000), although further modelling will benefit from additional constraints from more recent HST and VLT observations.
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Title/Abstract Page: The Structure of the
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