next previous
Up: Abstract

A&A Supplement series, Vol. 128, March II 1998, 507-523

Received May 26; accepted August 21, 1997

The Hamburg Quasar Surveygif, gif

II. A first list of 121 quasars

D. Engels - H.-J. Hagen - L. Cordis - S. Köhler - L. Wisotzki - D. Reimers

Send offprint request: D. Engels; e-mail:
Hamburger Sternwarte, Gojenbergsweg 112, D-21029 Hamburg, Germany


The Hamburg Quasar Survey is a wide-angle objective prism survey for finding bright QSOs in the northern extragalactic sky (tex2html_wrap_inline1118; tex2html_wrap_inline1120). The taking of the prism plates for 567 fields covering this area was completed in 1997. Including direct plates for fields with tex2html_wrap_inline1122 the plate archive contains now 1871 plates. In this paper we present a first list of 121 quasarsgif, which were verified by slit spectroscopy in the years 1986-1991, while experiments to develop efficient selection techniques were made. The sample contains objects with brightnesses tex2html_wrap_inline1124 and redshifts tex2html_wrap_inline1126 collected over various parts of the sky, for which objective prism plates were available at that time.

keywords: surveys -- quasars: general

Copyright by the European Southern Observatory (ESO)