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THE EUV MINI-SURVEY WITH THE ROSAT WIDE FIELD CAMERA.
MON NOT R ASTRON SOC
364 - 368.
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 inorbit 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.
|Title:||THE EUV MINI-SURVEY WITH THE ROSAT WIDE FIELD CAMERA|
|Keywords:||X-RAY-EMISSION, DA WHITE-DWARFS, FLARE STARS, LOW-MASS, EXOSAT, KINEMATICS, HOT, BINARIES, SPECTRUM, OBJECTS|
|UCL classification:||UCL > School of BEAMS > Faculty of Maths and Physical Sciences > Physics and Astronomy|
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