Title | The Hamburg Quasar Survey. II. A first list of 121 quasars |
Authors | Engels, D.; Hagen, H. -J.; Cordis, L.; Koehler, S.; Wisotzki, L.; Reimers, D. |
Bibcode | 1998A&AS..128..507E Search ADS ↗ |
Abstract | 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 |
Objects | 123 Objects Search NED ↙ |