Abstract
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 iu the region of the radio lobes.
Original language | English |
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Pages (from-to) | L188-L194 |
Number of pages | 7 |
Journal | Astronomy and Astrophysics |
Volume | 365 |
Issue number | 1 |
Publication status | Published - Jan 2001 |
Keywords
- galaxies : clusters : individual : Virgo
- galaxies : individual : M 87
- radio continuum : galaxies
- radio galaxies : individual : 3C 274
- X-rays : galaxies
- PHOTON IMAGING CAMERA
- VIRGO CLUSTER
- RADIO HALO
- M87
- GALAXIES
- DISTANCE
- MASS
- GAS