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Astron. Astrophys. 349, L29-L33 (1999)

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Letter to the Editor

HS 1603+3820: a bright zem = 251 quasar with a very rich heavy element absorption spectrum

A. Dobrzycki 1, D. Engels 2 and H.-J. Hagen 2

1 Harvard-Smithsonian Center for Astrophysics, 60 Garden Street, Cambridge, MA 02138, USA (adobrzycki@cfa.harvard.edu)
2 Hamburger Sternwarte, Gojenbergsweg 112, D-21029 Hamburg, Germany (dengels, hhagen@hs.uni-hamburg.de)

Received 8 June 1999 / Accepted 10 August 1999


During the course of Hamburg/CfA Bright Quasar Survey we discovered a bright ([FORMULA]), high redshift ([FORMULA]) quasar HS 1603+3820. The quasar has a rich complex of CIV absorbers, containing at least five systems, all within 3000 km s-1 from one another. Despite large ejection velocity ([FORMULA] km s-1 for all components) the complex is likely to be associated with the quasar. There are at least three more associated heavy element absorbers, two of which have [FORMULA]. Together, they make one of the richest known complexes of associated heavy element absorbers, and the richest in objects with [FORMULA]. The combination of redshift, brightness, richness of the metal absorption spectrum and richness of the associated absorption is unmatched among known quasars.

Key words: galaxies: intergalactic medium – galaxies: quasars: absorption lines – galaxies: quasars: individual: HS 1603+3820

Send offprint requests to: A. Dobrzycki

© European Southern Observatory (ESO) 1999

Online publication: August 25, 1999