Probing the pc- and kpc-scale environment of the powerful radio galaxy Hercules A

Details Probing the pc- and kpc-scale environment of the powerful radio galaxy Hercules A Probing the pc- and kpc-scale environment of the powerful radio galaxy Hercules A

2001-11-30

arxiv.org/abs/astro-ph/0111607v1

Astronomy and Astrophysics

Astrophysics

7 pages, 2 figures, Submitted to PASA

Scientific paper

10.1071/AS01082

We present the kpc-scale behaviour of the powerful extragalactic radio source Hercules A and the behaviour of the intracluster gas in which the radio source is situated. We have found that Hercules A exhibits a strong Laing-Garrington effect. The X-ray observations have revealed an extended X-ray emission elongated along the radio galaxy axis. The estimated temperature of the cluster is kT = 2.45 keV and the central electron density is no~7.8 x 10^(-3) cm^(-3) which reveals a hot, dense environment in which Hercules A is situated. From the combined study of the radio and X-ray data we have estimated a central value of 3

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