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VLA and MERLIN Monitoring Observations of the Gravitational Lens System B1030+074

Published online by Cambridge University Press:  26 May 2016

E. Xanthopoulos ,
I. W. A. Browne ,
A. R. Patnaik  and
P. N. Wilkinson
E. Xanthopoulos
Affiliation:
Jodrell Bank Observatory, University of Manchester, Macclesfield, Cheshire, SK11 9DL, UK
I. W. A. Browne
Affiliation:
Jodrell Bank Observatory, University of Manchester, Macclesfield, Cheshire, SK11 9DL, UK
A. R. Patnaik
Affiliation:
Max-Planck-Institut für Radioastronomie, Auf dem Hügel 69, D-53121, Bonn, Germany
P. N. Wilkinson
Affiliation:
Jodrell Bank Observatory, University of Manchester, Macclesfield, Cheshire, SK11 9DL, UK

Abstract

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We present VLA and MERLIN monitoring data of the JVAS gravitational lens system B1030+074. The system was monitored with the VLA from February 1998 to October 1998 at 8.4-GHz during which the VLA was at its A, BnA and B configuration. The 47 epochs of observations have an average spacing of approximately 5 days. Ten MERLIN snapshots were obtained in the L-band (1.7 GHz) during the months of April, May and June 1998. Preliminary light curves of the two components of the lens system obtained from the VLA data indicate that during the period of the monitoring the A flux density showed a steady decrease. No changes are observed in the B light curve.

Type
Part XII: Poster Papers
Information
Symposium - International Astronomical Union , Volume 201: New Cosmological Data and the Values of the Fundamental Parameters , 2005 , pp. 532 - 533
Copyright
Copyright © Astronomical Society of the Pacific 2005 

References

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