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Astron. Astrophys. 359, 429-432 (2000)

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Redshifts of 10 quasar candidates in the field of the rich absorption line quasar Q0122-380 *

R.A. Jansen and P. Jakobsen

Astrophysics Division, Space Science Department of ESA, ESTEC, 2200 AG Noordwijk, The Netherlands (rjansen,pjakobse@astro.estec.esa.nl)

Received 1 March 2000 / Accepted 26 April 2000

Abstract

We have obtained low resolution ([FORMULA]20 Å FWHM) slit spectra of 10 quasar candidates located within one degree of the [FORMULA] quasar Q0122-380 with the objective of searching for signs of large scale structure matching the intervening rich absorption complexes seen over the redshift range [FORMULA] toward this object. Of the 8 confirmed quasars, 4 turn out to have redshifts [FORMULA], placing them well in front of the redshift range of interest. Two of the three confirmed quasars at redshift [FORMULA] show no obvious absorption matching that of Q0122-380 at our spectral resolution and signal-to-noise ratio. The third object at a redshift of [FORMULA] displays strong [FORMULA] absorption systems at [FORMULA] and [FORMULA] and a possibly BAL-like trough at [FORMULA]. If not intrinsic in nature, the former two systems could potentially be related to the absorption seen in Q0122-380, albeit over a distance of [FORMULA] ([FORMULA] Mpc at [FORMULA]).

Key words: galaxies: distances and redshifts – galaxies: quasars: absorption lines – galaxies: quasars: individual: Q0122-380 – cosmology: observations – cosmology: early Universe – cosmology: large-scale structure of Universe

* Based on optical spectroscopy obtained at the European Southern Observatory, La Silla, Chile

Send offprint requests to: R.A. Jansen (rjansen@astro.estec.esa.nl)

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© European Southern Observatory (ESO) 2000

Online publication: July 7, 2000
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