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Sloshing Gas in the Core of the Most Luminous Galaxy Cluster RXJ1347.5-1145We present new constraints on the merger history of the most X-ray luminous cluster of galaxies, RXJ1347.5-1145, based its unique multiwavelength morphology. Our X-ray analysis confirms the core gas is undergoing "sloshing" resulting from a prior, large scale, gravitational perturbation. In combination with extensive multiwavelength observations, the sloshing gas points to the primary and secondary clusters having had at least two prior strong gravitational interactions. The evidence supports a model in which the secondary subcluster with mass M=4.8+/-2.4 x 10(exp 14) Stellar Mass has previously (> or approx.=0.6 Gyr ago) passed by the primary cluster, and has now returned for a subsequent crossing where the subcluster's gas has been completely stripped from its dark matter halo. RXJ1347 is a prime example of how core gas sloshing may be used to constrain the merger histories of galaxy clusters through multiwavelength analyses.
Document ID
20110022420
Acquisition Source
Goddard Space Flight Center
Document Type
Abstract
Authors
Markevitch, Maxim (NASA Goddard Space Flight Center Greenbelt, MD, United States)
Giacintucci, S. (NASA Goddard Space Flight Center Greenbelt, MD, United States)
Dallacasa, D. (NASA Goddard Space Flight Center Greenbelt, MD, United States)
Venturi, T. (NASA Goddard Space Flight Center Greenbelt, MD, United States)
Brunetti, G. (NASA Goddard Space Flight Center Greenbelt, MD, United States)
Cassano, R. (NASA Goddard Space Flight Center Greenbelt, MD, United States)
Athreya, R. M. (NASA Goddard Space Flight Center Greenbelt, MD, United States)
Johnson, Ryan E. (Denison Univ. Granville, OH, United States)
Zuhone, John (Harvard-Smithsonian Center for Astrophysics Cambridge, MA, United States)
Jones, Christine (Harvard-Smithsonian Center for Astrophysics Cambridge, MA, United States)
Forman, William R. (Harvard-Smithsonian Center for Astrophysics Cambridge, MA, United States)
Date Acquired
August 25, 2013
Publication Date
January 1, 2011
Subject Category
Astronomy
Distribution Limits
Public
Copyright
Public Use Permitted.

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