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A Radio Survey For Gravitational Lenses In The Southern Hemisphere

Published online by Cambridge University Press:  25 May 2016

J.E.J. Lovell ,
P.M. McCulloch  and
D.L. Jauncey
J.E.J. Lovell
Affiliation:
Department of Physics, University of Tasmania, Australia
P.M. McCulloch
Affiliation:
Department of Physics, University of Tasmania, Australia
D.L. Jauncey
Affiliation:
Australia Telescope National Facility, CSIRO, Sydney, Australia

Extract

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We are undertaking an imaging survey with the Australia Telescope Compact Array (ATCA) to find gravitational lens candidates in flat-spectrum Parkes Catalogue radio sources. Flat-spectrum radio sources typically possess a single high brightness temperature nucleus of milliarcsecond size. Such sources, if lensed, will show multiply imaged nuclei with separations that are large compared to their milliarcsecond sizes. Our flat-spectrum sample was selected using the criteria α2.7/5.0 > −0.5 (S(v) ∝ vα), S2.7 > 0.34Jy and δ ≤ −20°, and comprises a total of 461 sources.

Type
Chapter 11: Lens Surveys
Information
Symposium - International Astronomical Union , Volume 173: Astrophysical Applications of Gravitational Lensing , 1996 , pp. 403 - 404
Copyright
Copyright © Kluwer 1996 

References

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