Astronomy and Astrophysics – Astrophysics
Scientific paper
2000-09-19
Astronomy and Astrophysics
Astrophysics
3 pages, uses newpasp LaTeX style, 1 postscript figure, to appear in "New Era of Wide-Field Astronomy", ASP Conference Series
Scientific paper
We use digitized Schmidt direct and prism plates taken for the northern hemisphere Hamburg Quasar Survey (HQS) to obtain optical identifications for all high galactic latitude X-ray sources in the ROSAT Bright Source Catalogue (RASS-BSC) at |b|>=30 deg and DEC >= 0deg. In this part of the sky the RASS-BSC contains about 5300 X-ray sources. Presently, identifications exist for about 4100 RASS-BSC sources in this galactic latitude range.
Engels Dieter
Hagen Hans-Juergen
Reimers Dieter
Zickgraf Franz-Josef
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