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Sub-arcsecond imaging and spectroscopy of the radio-loud highly polarized quasar PKS 1610-771

Courbin, F. and Hutsemékers, D. and Meylan, G. and Magain, P. and Djorgovski, S. G. (1997) Sub-arcsecond imaging and spectroscopy of the radio-loud highly polarized quasar PKS 1610-771. Astronomy and Astrophysics, 317 (3). pp. 656-660. ISSN 0004-6361.

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We report on imaging and spectroscopic observations of the radio-loud, highly polarized quasar PKS 1610-771 (z = 1.71). Our long-slit spectroscopy of the companion 4.55” NW of the quasar confirms the stellar nature of this object, so ruling out the previously suspected gravitationally lensed nature of this system. PKS 1610-771 looks fuzzy on our sub-arcsecond R and I images and appears located in a rich environment of faint galaxies. Possible magnification, without image splitting of the quasar itself, by some of these maybe foreground galaxies cannot be excluded. The continuum fuzz (made of the closest two objects, viz. A and D) is elongated in a direction orthogonal to the E vector of the optical polarization, as in high-redshift radio-galaxies. The spectrum of PKS 1610-771 appears strongly curved, in a convex way, with a maximum of intensity at ~7,600 Å (2,800 Å rest frame), possibly indicating a strong ultraviolet absorption by dust.

Item Type:Article
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URLURL TypeDescription Paper
Djorgovski, S. G.0000-0002-0603-3087
Additional Information:© 1997 European Southern Observatory (ESO). Received 22 March 1996; Accepted 11 June 1996. Based on observations obtained with the New Technology Telescope at the European Southern Observatory, La Silla, Chile. The authors would like to thank R.W. Hunstead and J. Baker for helpful comments and for providing their published composite quasar spectrum, as well as E. Bertin for help and comments concerning the optimal use of his photometry program. The SIMBAD database has been consulted for finding the available literature on the object. The research of the Liège team on gravitational lenses is supported in part by the contracts ARC 94/99-178 “Action de Recherche Concertée de la Communauté Française” (Belgium) and the European Community, HCM Network CHRX-CT92-0044. SGD acknowledges a partial support from the NSF PYI award AST-9157412.
Funding AgencyGrant Number
Communauté Francaise de Belgique-Action de recherche concertée-Académie Wallonie-EuropeARC 94/99-178
European CommunityCHRX-CT92-0044
Subject Keywords:quasars: general; PKS 1610–771
Issue or Number:3
Record Number:CaltechAUTHORS:20190730-154010871
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Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:97534
Deposited By: Tony Diaz
Deposited On:01 Aug 2019 20:06
Last Modified:03 Oct 2019 21:32

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