Chandra X-ray Observations of the Hydra A Cluster: An Interaction Between the Radio Source and the Cluster's X-ray-emitting Atmosphere

Details Chandra X-ray Observations of the Hydra A Cluster: An Interaction Between the Radio Source and the Cluster's X-ray-emitting Atmosphere Chandra X-ray Observations of the Hydra A Cluster: An Interaction Between the Radio Source and the Cluster's X-ray-emitting Atmosphere

May 2000

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2000aas...19511215m&link_type=abstract

American Astronomical Society, 195th AAS Meeting, #112.15; Bulletin of the American Astronomical Society, Vol. 32, p.877

Astronomy and Astrophysics

Astronomy

Scientific paper

We present new Chandra X-ray observations of the Hydra A cluster of galaxies. We report the discovery of structure in the cluster's X-ray-emitting gas, including regions of low X-ray surface brightness located roughly 25 kpc (H0=50 km s-1 Mpc-1) to the north and south of the brightest cluster galaxy's (BCG) nucleus. These regions, roughly 25-50 kpc in diameter, are devoid of X-ray-emitting gas, and are coincident with Hydra A's powerful radio lobes. The cavities were apparently purged of intracluster gas by the radio source. A bright, unresolved X-ray source coincides with the radio core and the BCG's nucleus. The X-ray spectral energy distribution of the source is consistent with being a power law absorbed by a foreground column of hydrogen of order 1022 atoms cm-2. This column is consistent with the column of neutral hydrogen seen in absorption against the 10 pc radius VLBA radio core. This correlation constrains the size of the unresolved X-ray source to less than 20 pc in diameter. Bright X-ray features are present in the central region of BCG, coincident with a nine kpc central disk of nebular emission and young stars, and two companion galaxies projected against the the BCG. These X-ray features are apparently associated with a cooling flow.

Affiliated with

Also associated with

No associations

Rating

Chandra X-ray Observations of the Hydra A Cluster: An Interaction Between the Radio Source and the Cluster's X-ray-emitting Atmosphere does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.

If you have personal experience with Chandra X-ray Observations of the Hydra A Cluster: An Interaction Between the Radio Source and the Cluster's X-ray-emitting Atmosphere, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Chandra X-ray Observations of the Hydra A Cluster: An Interaction Between the Radio Source and the Cluster's X-ray-emitting Atmosphere will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-1122261