NASA/IPAC EXTRAGALACTIC DATABASE
Date and Time of the Query: 2019-06-16 T21:54:06 PDT
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For refcode 1993MNRAS.264L..25B:
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NED Abstract

Copyright by Royal Astronomical Society. 1993MNRAS.264L..25B A ROSAT HRI study of the interaction of the X-ray emitting gas and radio lobes of NGC 1275 H. Bohringer, W. Voges, A.C. Fabian, A.C. Edge and D.M. Neumann Max-Planck-Institut fur extraterrestrische Physik, PBS 740 Garching. Germany Institute of Astronomy. Madingley Road, Cambridge CB3 OHA Accepted 1993 July 15. Received 1993 July 15 ABSTRACT A high spatial resolution ROSAT image of NGC 1275 in the centre of the Perseus cluster of galaxies shows for the first time clear evidence for the interaction of the relativistic particles in the radio lobes with the X-ray-emitting intracluster plasma. The thermal plasma is displaced by the inner parts of the radio lobes, causing a significant decrease of the X-ray surface brightness in those regions. The equipartition pressure in the radio lobes is somewhat less than the pressure in the surrounding intracluster medium unless a high ratio of relativistic protons to electrons is assumed. Key words: galaxies: active - galaxies: clusters: individual: Perseus - cooling flows - galaxies: individual: NGC 1275 - radio continuum: galaxies - X-rays: galaxies.
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