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Measuring the Properties of the Gravitational Lens PKS 1830–211

Published online by Cambridge University Press:  12 April 2016

J. E. J. Lovell ,
P. M. McCulloch ,
S. P. Ellingsen ,
C. J. Phillips ,
J. E. Reynolds ,
D. L. Jauncey ,
M. W. Sinclair ,
W. E. Wilson ,
A. K. Tzioumis  and
E. A. King
...Show all authors
J. E. J. Lovell
Affiliation:
Physics Department, University of Tasmania, Hobart, Australia
P. M. McCulloch
Affiliation:
Physics Department, University of Tasmania, Hobart, Australia
S. P. Ellingsen
Affiliation:
Physics Department, University of Tasmania, Hobart, Australia
C. J. Phillips
Affiliation:
Physics Department, University of Tasmania, Hobart, Australia
J. E. Reynolds
Affiliation:
Australia Telescope National Facility, Epping, NSW, Australia
D. L. Jauncey
Affiliation:
Australia Telescope National Facility, Epping, NSW, Australia
M. W. Sinclair
Affiliation:
Australia Telescope National Facility, Epping, NSW, Australia
W. E. Wilson
Affiliation:
Australia Telescope National Facility, Epping, NSW, Australia
A. K. Tzioumis
Affiliation:
Australia Telescope National Facility, Epping, NSW, Australia
E. A. King
Affiliation:
Australia Telescope National Facility, Epping, NSW, Australia
R. G. Gough
Affiliation:
Australia Telescope National Facility, Epping, NSW, Australia
R. A. Preston
Affiliation:
Jet Propulsion Laboratory, Caltech, Pasadena, CA, USA
D. L. Jones
Affiliation:
Jet Propulsion Laboratory, Caltech, Pasadena, CA, USA
P. R. Backus
Affiliation:
SETI Institute, Mountain View, CA, USA

Abstract

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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.

Type
Research Article
Information
International Astronomical Union Colloquium , Volume 164: Radio Emission from Galactic and Extragalactic Compact Sources , 1998 , pp. 315 - 316
Copyright
Copyright © Astronomical Society of the Pacific 1998

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