Chandra acis-s observations of abell 4059: signs of dramatic interaction between a radio galaxy and a galaxy cluster - INSPIRE

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Chandra acis-s observations of abell 4059: signs of dramatic interaction between a radio galaxy and a galaxy cluster

Jan, 2002

Published in:

Astrophys.J.Lett. 569 (2002) L79

e-Print:

astro-ph/0201107 [astro-ph]

DOI:

10.1086/340688

Report number:

MPA1392E

View in:

ADS Abstract Service

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Abstract: (arXiv)

We present Chandra observations of the galaxy cluster A4059. We find strong evidence that the FR-I radio galaxy PKS 2354-35 at the center of A4059 is inflating cavities with radii ~20 kpc in the intracluster medium, similar to the situation seen in Perseus A and Hydra A. We also find evidence for interaction between the intracluster medium and PKS 2354-35 on small scales in the very center of the cluster. Arguments are presented suggesting that this radio galaxy has faded significantly in radio power (possibly from an FR-II state) over the past 10^8 yrs.

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