The EUV mini-survey with the ROSAT wide field camera.
Abstract
Following a successful launch on 1990 June 1, the ROSAT spacecraft and its payload, consisting of an X-ray and an EUV telescope, underwent two months of in-orbit calibration and detailed performance checks. A preliminary observation of a small section of the sky, carried out over July 11-16 (the `mini-survey') showed all ROSAT systems to be functioning well and has allowed predictions to be made on the ultimate productivity of both ROSAT all-sky surveys. An analysis of the mini-survey data from the UK Wide Field Camera, has revealed 35 EUV sources, including several white dwarf stars, a variety of active cool stars and several other objects. In all, 23 sources have probable optical counterparts. Consideration of the effective exposure and sky coverage in the mini- survey allows the prediction that the recently completed ROSAT all-sky survey will yield in excess of a thousand new EUV sources.
- Publication:
-
Monthly Notices of the Royal Astronomical Society
- Pub Date:
- November 1991
- DOI:
- 10.1093/mnras/253.2.364
- Bibcode:
- 1991MNRAS.253..364P
- Keywords:
-
- Extreme Ultraviolet Radiation;
- Rosat Mission;
- Space Surveillance (Spaceborne);
- Ultraviolet Astronomy;
- Cameras;
- Spaceborne Telescopes;
- Ultraviolet Telescopes;
- X Ray Telescopes;
- Astronomy