The interaction of the radio halo of M87 with the cooling intracluster medium of the Virgo cluster

Details The interaction of the radio halo of M87 with the cooling intracluster medium of the Virgo cluster The interaction of the radio halo of M87 with the cooling intracluster medium of the Virgo cluster

Jun 1995

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1995mnras.274l..67b&link_type=abstract

Monthly Notices of the Royal Astronomical Society, Volume 274, Issue 4, pp. L67-L71.

Astronomy and Astrophysics

Astronomy

103

Galaxies: Active, Clusters: Individual: Virgo, Cooling Flows, Galaxies: Individual: M87, Radio Continuum: Galaxies, X-Rays: Galaxies

Scientific paper

ROSAT X-ray images and spectra of the inner parts of the Virgo cluster around M87 are presented and compared with a new deep radio map. Apart from the emission peaked on M87, a roughly linear structure, noted previously by Feigelson et al. using Einstein Observatory data and correlated with the outer radio halo, is seen. We have carried out the first spectral analysis of this structure and find that it is clearly due to thermal emission from metal-rich gas at a temperature significantly lower than that of the surrounding intracluster gas. We propose several models to account for the enhanced X-ray emissivity in the radio halo.

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