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X-ray and radio observations of the galaxy cluster 3C 129 |
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| Authors: | H Krawczynski DE Harris R Grossman W Lane N Kassim AG Willis |
| Institution: | aPhysics Department, Washington University in St. Louis, 1 Brookings Drive, Campus Box 1105, St. Louis, MO 63130, USA bSmithsonian Astrophysical Observatory, 60 Garden Str., Cambridge, MA 02138, USA cDepartment of Physics and Astronomy, Barnard College, Columbia University, New York, NY 10027, USA dCode 7213, Remote Sensing Division, Naval Research Laboratory, Washington, DC 20375-5351, USA eNational Research Council of Canada, Herzberg Institute of Astrophysics, Dominion Radio Astrophysical Observatory, P.O. Box 248, Penticton, BC, Canada V2A 6K3 |
| Abstract: | The galaxy cluster 3C 129 contains two radio galaxies, the prototypical head tail radio galaxy 3C 129 and the weaker radio galaxy 3C 129.1. The tail of the first radio galaxy extends over more than 15′ across the sky. In this paper, we report on Chandra spectroscopy observations of the galaxy cluster, complemented by new and archival radio data taken with the Very Large Array (VLA) at 0.33, 1.4, 5, and 8 GHz and by HI-observations performed with the dominion radio astrophysical observatory (DRAO). We describe the Chandra results on the properties of the Intra-Cluster Medium (ICM) and discuss extended X-ray emission detected from the host galaxy of the radio galaxy 3C 129.1 and from the inner jet of the radio galaxy 3C 129. Finally, we report on the results of an ICM/radio plasma pressure balance study along the tail of the radio galaxy 3C 129. |
| Keywords: | X-ray and radio observations Observations of the galaxy cluster 3C 129 |
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