X-ray Spectroscopy of the Virgo Cluster out to the Virial Radius

Details X-ray Spectroscopy of the Virgo Cluster out to the Virial Radius X-ray Spectroscopy of the Virgo Cluster out to the Virial Radius

2011-02-11

arxiv.org/abs/1102.2430v1

Astronomy and Astrophysics

Astrophysics

Cosmology and Extragalactic Astrophysics

Accepted for publication in MNRAS

Scientific paper

We present results from the analysis of a mosaic of thirteen XMM-Newton pointings covering the Virgo Cluster from its center northwards out to a radius r~1.2 Mpc (~4.5 degrees), reaching the virial radius and beyond. This is the first time that the properties of a modestly sized (M_vir~1.4e14 M_sun, kT~2.3 keV), dynamically young cluster have been studied out to the virial radius. The density profile of the cluster can be described by a surprisingly shallow power-law with index 1.21+/-0.12. In the radial range of 0.3r_vir

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