18 GHz SZ measurements of the bullet cluster

Please use this identifier to cite or link to this item: http://hdl.handle.net/2289/5258

Title:	18 GHz SZ measurements of the bullet cluster
Authors:	Malu, S.S. Subrahmanyan, Ravi
Keywords:	Galaxies clusters radio continuum techniques individual (1E 0657-56, RX J0658-5557)
Issue Date:	Dec-2011
Publisher:	Indian Academy of Sciences
Citation:	Journal of Astrophysics and Astronomy, 2011, Vol.32, p541
Abstract:	We present 18 GHz observations of the Bullet cluster using the Austalia Telescope Compact Array (ATCA), which show structure in the Sunyaev-Zeldovich effect; in particular, a deep, compact feature which does not correspond to any bright feature in X-ray, optical or lensing maps. In general, the relatively deeper SZE features appear to avoid the regions with the most intense X-ray emission. SZE displaced from X-ray centres implies that modeling cluster dynamics is non-trivial. The SZE distribution in the western parts of the cluster are co-spatial with the radio halo indicative of a common origin for the hot and relativistic electrons in the turbulent wake of the Bullet.
Description:	Open Access
URI:	http://hdl.handle.net/2289/5258
ISSN:	0250-6335 0973-7758 (Online)
Alternative Location:	http://adsabs.harvard.edu/abs/2011JApA...32..541M http://dx.doi.org/10.1007/s12036-011-9111-7
Copyright:	2011 Indian Academy of Sciences
Appears in Collections:	Research Papers (A&A)

Files in This Item:

File	Description	Size	Format
2012_JAA_Vol.32_p541.pdf Restricted Access	Open Access	245.37 kB	Adobe PDF	View/Open Request a copy