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Large-scale Motions in the Perseus Galaxy Cluster
- Publication Year :
- 2012
-
Abstract
- By combining large-scale mosaics of ROSAT PSPC, XMM-Newton, and Suzaku X-ray observations, we present evidence for large-scale motions in the intracluster medium of the nearby, X-ray bright Perseus Cluster. These motions are suggested by several alternating and interleaved X-ray bright, low-temperature, low-entropy arcs located along the east-west axis, at radii ranging from ~10 kpc to over a Mpc. Thermodynamic features qualitatively similar to these have previously been observed in the centers of cool core clusters, and were successfully modeled as a consequence of the gas sloshing/swirling motions induced by minor mergers. Our observations indicate that such sloshing/swirling can extend out to larger radii than previously thought, on scales approaching the virial radius.<br />Comment: 6 pages, 6 figures, accepted for publication in ApJ
Details
- Database :
- arXiv
- Publication Type :
- Report
- Accession number :
- edsarx.1208.2990
- Document Type :
- Working Paper
- Full Text :
- https://doi.org/10.1088/0004-637X/757/2/182