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Paper: Measuring the Properties of the Gravitational Lens PKS 1830-211
Volume: 144, Radio Emission from Galactic and Extragalactic Compact Sources, IAU Colloquium 164
Page: 315
Authors: Lovell, J. E. J.; McCulloch, P. M.; Ellingsen, S. P.; Phillips, C. J.; Reynolds, J. E.; Jauncey, D. L.; Sinclair, M. W.; Wilson, W. E.; Tzioumis, A. K.; King, E. A.; Gough, R. G.; Preston, R. A.; Jones, D. L.; Backus, P. R.
Abstract: PKS 1830--211 is the strongest known radio gravitational lens by almost an order of magnitude and has the potential to provide a measurement of H0, provided the lensing system can be parameterized. Attempts to identify optical counterparts, to measure redshifts, have so far proved unsuccessful and this has lead to radio and millimetre spectral line observations. We present our discovery of an absorption system at z=0.19. A brief description is also made of our ATCA observations to measure the lensing time delay for this source.
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