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The Rosat mission
Authors:B. Aschenbach  H. Bräuninger  U. Briel  W. Brinkmann  H. Fink  N. Heinecke  H. Hippmann  G. Kettenring  G. Metzner  A. Ondrusch  E. Pfeffermann  P. Predehl  G. Reger  K. -H. Stephan  J. Trümper  H. U. Zimmermann
Affiliation:(1) Max-Planck-Institut für Physik und Astrophysik, Institut für extraterrestrische Physik, D-8046, Garching, Germany
Abstract:The primary scientific objective of the ROSAT mission is to perform the first all sky survey with an imaging X-ray telescope leading to an improvement in sensitivity by several orders of magnitude compared with previous surveys. Consequently a large number of new sources (> 105) will be discovered and located with an accuracy of 1 arcmin. After completion of the survey which will take about half a year the instrument will be used for detailed observations of selected targets.The X-ray telescope consists of a fourfold nested Wolter type I mirror system with 80 cm aperture and 240 cm focal length, and three focal plane detectors. In the baseline version these will be imaging proportional counters (0.1 – 2 keV) providing a field of view of 20 × 20.
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