Astronomy and Astrophysics – Astrophysics
Scientific paper
Mar 1998
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1998a%26as..128..507e&link_type=abstract
Astronomy and Astrophysics Supplement, v.128, p.507-523
Astronomy and Astrophysics
Astrophysics
31
Surveys, Quasars: General
Scientific paper
The Hamburg Quasar Survey is a wide-angle objective prism survey for finding bright QSOs in the northern extragalactic sky (|b| > 20degr ; delta > 0degr ). The taking of the prism plates for 567 fields covering this area was completed in 1997. Including direct plates for fields with delta > 20degr the plate archive contains now 1871 plates. In this paper we present a first list of 121 quasars, 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 15<= B <= 19.5 and redshifts z<= 2.8 collected over various parts of the sky, for which objective prism plates were available at that time. Based on observations obtained at the German-Spanish Astronomical Center, Calar Alto, Spain, operated by the Max-Planck-Institut für Astronomie, Heidelberg, jointly with the Spanish National Commission for Astronomy.
Tables 2-4 are also available in electronic form via anonymous ftp at cdsarc.u-strasbg.fr (130.79.128.5) or on the web via http://cdsweb.u-strasbg.fr/Abstract.html
Cordis L.
Engels Dieter
Hagen Hans-Juergen
Koehler S.
Reimers Dieter
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