2002A&A...384L..27E

Query : 2002A&A...384L..27E

2002A&A...384L..27E - Astronomy and Astrophysics, volume 384L27-30 (2002/3-4)

Radio and X-ray detectability of buoyant radio plasma bubbles in clusters of galaxies.

ENSSLIN T.A. and HEINZ S.

Abstract (from CDS):

The Chandra X-ray Observatory is finding a surprisingly large number of cavities in the X-ray emitting intracluster medium (ICM), produced by the release of radio plasma from active galactic nuclei. In this letter, we present simple analytic formulae for the evolution of the X-ray deficit and for the radio spectrum of a buoyantly rising bubble. The aim of this work is to provide a theoretical framework for the planning and the analysis of X-ray and radio observations of galaxy clusters. We show that the cluster volume tested for the presence of cavities by X-ray observations is a strongly rising function of the sensitivity.

Abstract Copyright: ∼

Journal keyword(s): radiation mechanisms: thermal - radiation mechanism: non-thermal - galaxies: active - intergalactic medium - galaxies: cluster: general - radio continuum: general

Simbad objects: 12

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Number of rows : 12
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 426 ClG 03 19 47.6 +41 30 54           ~ 2508 1
2 ACO 780 ClG 09 18 30 -12 15.7           ~ 469 0
3 ClG J0947+7623 ClG 09 46 59.916 +76 23 43.99           ~ 165 0
4 NVSS J094712+762312 Rad 09 47 12.37 +76 23 09.3           ~ 151 1
5 M 84 Sy2 12 25 03.74333 +12 53 13.1393 12.67 12.09 10.49     ~ 1841 2
6 NAME Virgo Cluster ClG 12 30 47.8 +12 23 07           ~ 7107 0
7 ACO 2052 ClG 15 16 41.64 +07 01 45.5           ~ 756 1
8 ACT-CL J1521.8+0742 ClG 15 21 48.8 +07 43 41     15.13     ~ 326 0
9 ACO 2199 ClG 16 28 34.5 +39 32 26           ~ 1206 1
10 BAX 299.8681+40.7339 ClG 19 59 30.3 +40 44 11           ~ 143 0
11 ACO 2597 ClG 23 25 19.70 -12 07 27.7           ~ 572 0
12 ACO 4059 ClG 23 57 02.2 -34 45 58           ~ 400 1

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