We studied the X-ray properties of the Hickson Compact Group HCG62, in order
to determine the properties and dynamic and evolutionary state of its hot
gaseous halo. Our analysis reveals that the X-ray diffuse halo has an extremely
complex morphological, thermal and chemical structure. Two deep cavities, due
to the presence of the AGN hosted by the central galaxy NGC 4778, are clearly
visible in the group X-ray halo. The cavities appear to be surrounded by ridges
of cool gas. The group shows a cool core associated with the dominant galaxy.
In the outer regions the temperature structure is quite regular, while the
metal abundance shows a more patchy distribution, with large Si/O and Si/Fe
ratios.Comment: Published in the Proceedings of the "I Workshop of Astronomy and
Astrophysics for Students", Eds. N.R. Napolitano & M. Paolillo, Naples, 19-20
April 2006 (astro-ph/0701577
