Abstract
We present the Hamburg/RASS Catalogue of optical identications (HRC). The catalogue contains op- tical information about objects inside the error circles of ROSAT All-Sky Survey (RASS) sources. The information was gathered from objective prism and direct plates taken by the Hamburg Quasar Survey (HQS). The plates enable an eective selection of several X-ray emitting classes of objects, as there are galaxies, AGN, QSOs, galaxy clusters and several types of galactic stars, in particular M dwarfs, hot white dwarfs and cataclysmic variables. In the cur- rent state (November 1996) the HRC contains information about 3847 X-ray positions and covers about 8480 deg 2 of the high galactic latitude (jbj > 20) northern sky. For 81:2% of the X-ray sources a plausible optical counter- part is given. The counterparts of the remaining sources are probably faint ( B> 18:5) AGN and galaxy clusters. The HRC is available electronically together with nding charts taken from the digitized direct HQS plates.
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
