The Hamburg/RASS optical identification project

In 'New Era of Wide-Field Astronomy', eds. R. Clowes, A. Adamson & G. Bromage, PASPC 232, 105 (2001)

F.-J. Zickgraf [1], D. Engels [1], H.-J. Hagen [1], D. Reimers [1]

  1. Hamburger Sternwarte, Gojenbergsweg 112, D-21029 Hamburg, Germany

Abstract

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.

Key words: X--rays - Surveys

Contact: F.-J. Zickgraf.

Preprint (compressed PS-File, 33 Kb)

ADS-Link