Astronomy and Astrophysics – Astronomy
Scientific paper
May 2011
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2011aas...21840818h&link_type=abstract
American Astronomical Society, AAS Meeting #218, #408.18; Bulletin of the American Astronomical Society, Vol. 43, 2011
Astronomy and Astrophysics
Astronomy
Scientific paper
We report the analysis results from XMM-Newton data of two clusters of galaxies, which was also known to as strong radio emitters; A194 and A2634. A194 is a nearby (z=0.018) linear cluster in NE-SW direction. The cluster is very faint in X-rays with an average ICM temperature of 2.7 keV. A194 has strong radio lobes hosted by N541 and N547. Temperature map indicates an interesting result of ICM & radio-lobe interactions; the hot X-ray plasma coincides with the rim of radio-lobes, as it was heated. A2634 (z=0.0314) is also has a strong radio emission from its cD galaxy. ICM plasma has an average temperature of 3 keV. The temperature variations of A2634 associate with the radio-jets. The northern part of the cluster is significantly hot (4.5 keV) around the boundaries of radio-jets and very low in metal abundance (<0.1 solar). The analysis results of two-clusters are studied to understand radio and X-ray interactions within ICM. We report that (1) the radio-jets may push ICM and create X-ray cavities (2) radio-rims increases the temperature of ICM by shock-heating.
Ercan E.
Hudaverdi Murat
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