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The Sunyaev-Zeldovich Effect Spectrum of Abell 2163We present a measurement of the Sunyaev-Zeldovich effect (SZE) at 30 GHz for the galaxy cluster Abell 2163. Combining this data point with previous measurements at 140, 220, and 270 GHz from the SuZIE and Daibolo experiments, we construct them most complete SZE spectrum to date. The spectrum is fitted to determine the compton y parameter and the peculiar velocity for this cluster; our results are y_0=3.6 x 10(circumflex)4 and v_p=360 km s(circumflex)-1. These results include corrections for contamination by Galactic dust emission; we find the contamination level to be much less than previously reported. The dust emission, while strong, is distributed over much larger angular scales than the cluster signal and contributes little to the measured signal when the proper SZE observing strategy is taken into account.
Document ID
20010046960
Acquisition Source
Marshall Space Flight Center
Document Type
Preprint (Draft being sent to journal)
Authors
LaRoque, S. (NASA Marshall Space Flight Center Huntsville, AL United States)
Reese, E. D. (NASA Marshall Space Flight Center Huntsville, AL United States)
Holder, G. P. (NASA Marshall Space Flight Center Huntsville, AL United States)
Carlstrom, J. E. (NASA Marshall Space Flight Center Huntsville, AL United States)
Holzapfel, W. L. (NASA Marshall Space Flight Center Huntsville, AL United States)
Joy, M. K. (NASA Marshall Space Flight Center Huntsville, AL United States)
Grego, L. (NASA Marshall Space Flight Center Huntsville, AL United States)
Rose, M. Franklin
Date Acquired
August 20, 2013
Publication Date
January 1, 2001
Subject Category
Astrophysics
Distribution Limits
Public
Copyright
Work of the US Gov. Public Use Permitted.

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