The galaxy cluster in the constellation Coma is one of the most investigated over all wave lengths. It was long deemed to be the example of a galaxy cluster at the end of its lifetime. But ROSAT showed already that this system is imminent to a collision (see ROSAT calendar November 1992). This image consists of a mosaic exposure of the Coma cluster taken with the pn camera onboard XMM-Newton during the calibration and verification phase. In this image it is even more clear that the galaxy group around NGC 4839 (lower right part) is moving towards the center of the galaxy cluster: due to the impact, gas is streaming out of the group, stays behind the galaxies but is detected as X-rays. Because of the very large collecting area of the XMM-Newton telescope significantly more point sources are visible in Coma, many of them are identified belonging to Coma galaxies.

ROSAT (Röntgensatellit) 2001
Images from the X-ray sky taken with ROSAT, XMM-Newton, and Chandra · The 11^th ROSAT Calendar since 1991
All rights reserved © Max-Planck-Institut für extraterrestrische Physik, Postfach 1312, 85741 Garching, Germany.
X-ray images: SASS/EXSAS software MPE, ESO-MIDAS. The ROSAT, Chandra, and XMM-Newton project is supported by the Max Planck Society and the German Aerospace Center DLR on behalf of the German Federal Department of Education and Research (BMBF).

	Max-Planck-Institut für extraterrestrische Physik

Deutsche Version	MPE HEG X-Ray Astronomy Wave ROSAT Gallery ROSAT Calendar Images 2001
X-Ray Astronomy Wave ROSAT The X-ray Satellite ROSAT Highlights Gallery Rosat Images ROSAT Calendar Images 1991 1992 1993 1994 1995 1996 1997 1998 1999 2000 2001 2002 Five Years of Rosat Publications Workshops Calibration Timeline Processing News ROSAT Results Archive Catalogues ROSAT Link & Surf XMM-Newton Chandra Other Projects Data Center Exsas Search Impressum Contact	Overview Previous Next Mosaic exposure from the Coma galaxy cluster The galaxy cluster in the constellation Coma is one of the most investigated over all wave lengths. It was long deemed to be the example of a galaxy cluster at the end of its lifetime. But ROSAT showed already that this system is imminent to a collision (see ROSAT calendar November 1992). This image consists of a mosaic exposure of the Coma cluster taken with the pn camera onboard XMM-Newton during the calibration and verification phase. In this image it is even more clear that the galaxy group around NGC 4839 (lower right part) is moving towards the center of the galaxy cluster: due to the impact, gas is streaming out of the group, stays behind the galaxies but is detected as X-rays. Because of the very large collecting area of the XMM-Newton telescope significantly more point sources are visible in Coma, many of them are identified belonging to Coma galaxies. gzipped PostScript version ROSAT (Röntgensatellit) 2001 Images from the X-ray sky taken with ROSAT, XMM-Newton, and Chandra · The 11^th ROSAT Calendar since 1991 All rights reserved © Max-Planck-Institut für extraterrestrische Physik, Postfach 1312, 85741 Garching, Germany. X-ray images: SASS/EXSAS software MPE, ESO-MIDAS. The ROSAT, Chandra, and XMM-Newton project is supported by the Max Planck Society and the German Aerospace Center DLR on behalf of the German Federal Department of Education and Research (BMBF). © X-Ray Group at MPE (group) last update:, editor of this page:
	© Max-Planck-Institut für extraterrestrische Physik

Mosaic exposure from the Coma galaxy cluster