2010ApJ...716..758H

Query : 2010ApJ...716..758H

2010ApJ...716..758H - Astrophys. J., 716, 758-765 (2010/June-2)

AMiBA: scaling relations between the integrated Compton-y and X-ray-derived temperature, mass, and luminosity.

HUANG C.-W.L., WU J.-H.P., HO P.T.P., KOCH P.M., LIAO Y.-W., LIN K.-Y., LIU G.-C., MOLNAR S.M., NISHIOKA H., UMETSU K., WANG F.-C., ALTAMIRANO P., BIRKINSHAW M., CHANG C.-H., CHANG S.-H., CHANG S.-W., CHEN M.-T., CHIUEH T., HAN C.-C., HUANG Y.-D., HWANG Y.-J., JIANG H., KESTEVEN M., KUBO D., LI C.-T., MARTIN-COCHER P., OSHIRO P., RAFFIN P., WEI T. and WILSON W.

Abstract (from CDS):

We investigate the scaling relations between the X-ray and the thermal Sunyaev-Zel'dovich effect properties of clusters of galaxies, using data taken during 2007 by the Y. T. Lee Array for Microwave Background Anisotropy (AMiBA) at 94 GHz for the six clusters A1689, A1995, A2142, A2163, A2261, and A2390. The scaling relations relate the integrated Compton-y parameter Y2500 to the X-ray-derived gas temperature Te, total mass M2500, and bolometric luminosity LX within r2500. Our results for the power-law index and normalization are both consistent with the self-similar model and other studies in the literature except for the Y2500-LXrelation, for which a physical explanation is given though further investigation may be still needed. Our results not only provide confidence for the AMiBA project but also support our understanding of galaxy clusters.

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Journal keyword(s): cosmic background radiation - cosmology: observations - galaxies: clusters: general - X-rays: galaxies: clusters

Simbad objects: 6

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Number of rows : 6
N Identifier Otype ICRS (J2000)
RA 		ICRS (J2000)
DEC 		Mag U Mag B Mag V Mag R Mag I Sp type #ref
1850 - 2026 		#notes
1 ACO 1689 ClG 13 11 29.5 -01 20 28           ~ 1178 0
2 ACO 1995 ClG 14 52 55.0 +58 02 59           ~ 140 0
3 ACO 2142 ClG 15 58 26.5 +27 13 52           ~ 825 0
4 ACO 2163 ClG 16 15 46.1 -06 08 50           ~ 586 0
5 ACO 2261 ClG 17 22 26.9 +32 07 58           ~ 370 0
6 ACO 2390 ClG 21 53 37.4 +17 41 46           ~ 732 2

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