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An XMM-Newton study of the sub-structure in M 87's halo

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journal contribution
posted on 24.10.2012, 09:16 by E. Belsole, J. L. Sauvageot, H. Böhringer, K. Matsushita, D. M. Worrall, R. F. Mushotzky, I. Sakelliou, S. Molendi, M. Ehle, J. Kennea, G. Stewart, W. T. Vestrand
The high signal to noise and good point spread function of XMM have allowed the first detailed study of the interaction between the thermal and radio emitting plasma in the central regions of M 87. We show that the X-ray emitting structure, previously seen by ROSAT, is thermal in nature and that the east and southwest extensions in M 87's X-ray halo have a significantly lower temperature (kT=1.5 keV) than the surrounding ambient medium (kT=2.3 keV). There is little or no evidence for non-thermal emission with an upper limit on the contribution of a power law component of spectral index flatter than 3 being less than 1% of the flux in the region of the radio lobes.

History

Citation

Astronomy & Astrophysics, 2001, 365 (1)

Version

VoR (Version of Record)

Published in

Astronomy & Astrophysics

Publisher

EDP Sciences for European Southern Observatory (ESO)

issn

0004-6361

Copyright date

2001

Available date

24/10/2012

Publisher version

http://www.aanda.org/articles/aa/abs/2001/01/aaxmm48/aaxmm48.html

Language

en

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