Max-Planck-Institut für extraterrestrische Physik
Deutsche Version MPE HEG X-Ray Astronomy Wave ROSAT Gallery ROSAT Calendar Images 1999
Time Cycle of the Lunar Occultation of Scorpius X-1
The occultation of Scorpius X-1 on February 20, 1998 was observed with the spectral resolving proportional counter of ROSAT. The columns represent the four important phases of the observation. First column: After an exposure of a six degree distant comparison field ROSAT is directed --detector switched off-- to Scorpius X-1. Second column: Simultanously with the start of the occultation the detector is switched on. The waning X-ray half Moon (red) is scrolling across the scattering halo of Scorpius X-1 (green) to the top right. Third column: During the flight through the radiation belt the the detector noise increases for a short time (blue). Fourth column: The observed constellation is outshined by the earth's atmosphere (yellow) before it goes down after all behind the earth's horizon.
gzipped PostScript versionROSAT (Röntgensatellit) 1999
Images from the X-ray sky with the ROSAT telescope · All rights reserved:
© Max-Planck-Institut für extraterrestrische Physik, Postfach 1603, 85740 Garching, Germany.
The X-ray images are produced by the SASS/EXSAS software MPE, ESO-MIDAS.
The ROSAT project is managed by the Deutsches Zentrum für Luft- und Raumfahrt e.V. (DLR), Germany on behalf of the Bundesministerium für Bildung, Wissenschaft, Forschung und Technologie (BMBF).
© X-Ray Group at MPE (group)
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