1600+434: a new gravitational lens system

Creators: Jackson, N.; de Bruyn, A. G.; Myers, S.; Bremer, M. N.; Miley, G. K.; Schilizzi, R. T.; Browne, I. W. A.; Nair, S.; Wilkinson, P. N.; Blandford, R. D.; Pearson, T. J.; Readhead, A. C. S.

Abstract

We report the discovery of a new gravitational lens system associated with the flat-spectrum radio source 1600+434. The system has been found in a new large survey of such radio sources. It consists of a 1.4-arcsec double radio source with an associated optical double at the same position and orientation, and with an almost identical flux density ratio to that in the radio. Spectra of the light from two optical images show broad emission lines with a redshift of 1.61. The spectral data are not of sufficient quality to show that both images have identical spectra. Nevertheless, we argue that the probability that 1600+434 is indeed a lensed system is very high.

Additional Information

© 1995 Royal Astronomical Society. Accepted 1995 March 7. Received 1995 February 27. We acknowledge the communication of unpublished Texas Survey material which was used in the sample selection for the CLASS observations. The William Herschel Telescope is operated on the island of La Palma by the Royal Greenwich Observatory at the Spanish Observatorio del Roque de los Muchachos of the Instituto de Astrofísica de Canarias. The Very Large Array is operated by the US National Radio Astronomy Observatory on behalf of the US National Science Foundation. The WSRT is operated by the NFRA with the financial support of the Netherlands Organization for Scientific Research (NWO).

Attached Files

Published - 1995MNRAS_274L__25J.pdf

Files

1995MNRAS_274L__25J.pdf

Files (3.6 MB)

Name	Size	Download all
1995MNRAS_274L__25J.pdf md5:2b4cef5ccac9a610f3cc9da2e5204cd4	3.6 MB	Preview Download

Additional details

	All versions	This version
Views	0	0
Downloads	0	0
Data volume	0 Bytes	0 Bytes