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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 | |
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2012_JAA_Vol.32_p541.pdf Restricted Access | Open Access | 245.37 kB | Adobe PDF | View/Open Request a copy |
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