2010ApJ...725.1688A


C.D.S. - SIMBAD4 rel 1.7 - 2020.03.29CEST12:21:18

2010ApJ...725.1688A - Astrophys. J., 725, 1688-1706 (2010/December-3)

Galaxy clusters in the Swift/BAT era. II. 10 more clusters detected above 15 keV.

AJELLO M., REBUSCO P., CAPPELLUTI N., REIMER O., BOHRINGER H., LA PAROLA V. and CUSUMANO G.

Abstract (from CDS):

We report on the discovery of 10 additional galaxy clusters detected in the ongoing Swift/Burst Alert Telescope (BAT) all-sky survey. Among the newly BAT-discovered clusters there are Bullet, A85, Norma, and PKS 0745-19. Norma is the only cluster, among those presented here, which is resolved by BAT. For all the clusters, we perform a detailed spectral analysis using XMM-Newton and Swift/BAT data to investigate the presence of a hard (non-thermal) X-ray excess. We find that in most cases the clusters' emission in the 0.3-200 keV band can be explained by a multi-temperature thermal model confirming our previous results. For two clusters (Bullet and A3667), we find evidence for the presence of a hard X-ray excess. In the case of the Bullet cluster, our analysis confirms the presence of a non-thermal, power-law-like, component with a 20-100 keV flux of 3.4x10–12 erg/cm2/s as detected in previous studies. For A3667, the excess emission can be successfully modeled as a hot component (kT ∼ 13 keV). We thus conclude that the hard X-ray emission from galaxy clusters (except the Bullet) has most likely a thermal origin.

Abstract Copyright:

Journal keyword(s): acceleration of particles - galaxies: clusters: general - magnetic fields - radiation mechanisms: non-thermal - X-rays: general

Status at CDS:  

Simbad objects: 21

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Number of rows : 21

N Identifier Otype ICRS (J2000)
RA
ICRS (J2000)
DEC
Mag U Mag B Mag V Mag R Mag I Sp type #ref
1850 - 2020
#notes
1 ACO 19 ClG 00 18 51 -06 11.3           ~ 7 0
2 ACO 20 ClG 00 19 37 -22 37.3           ~ 8 0
3 ACO 85 ClG 00 41 37.8 -09 20 33           ~ 778 0
4 ACO 399 ClG 02 57 56.4 +13 00 59           ~ 340 0
5 ACO 401 ClG 02 58 56.9 +13 34 56           ~ 513 0
6 ACO 426 ClG 03 19 47.2 +41 30 47           ~ 1917 1
7 M 1 SNR 05 34 31.94 +22 00 52.2           ~ 5543 4
8 ClG 0657-56 ClG 06 58 29.6 -55 56 39           ~ 786 1
9 2MASX J07473129-1917403 BiC 07 47 31.296 -19 17 40.34   19.60       ~ 393 1
10 ClG 0745-19 ClG 07 47 31.3 -19 17 40           ~ 363 0
11 NAME Great Attractor SCG 10 32 -46.0           ~ 452 0
12 2E 3140 Sy1 13 48 34.9544288185 +26 31 09.794884131   17.86 17.43     ~ 42 0
13 ACO 1795 ClG 13 49 00.5 +26 35 07           ~ 1146 0
14 ACO 1914 ClG 14 26 01.3 +37 49 36           ~ 269 0
15 2MASX J16115141-6037549 Sy1 16 11 51.3948387867 -60 37 55.024931046   14.7       ~ 58 0
16 ACO 3627 ClG 16 14 22.5 -60 52 07           ~ 247 2
17 ESO 137-6 GiG 16 15 03.864 -60 54 26.14   13.08 12.83 11.33   ~ 89 0
18 NAME Ophiuchus Molecular Cloud SFR 16 28 06 -24 32.5           ~ 2979 0
19 ACO 2256 ClG 17 03 43.5 +78 43 03           ~ 825 1
20 ACO 3667 ClG 20 12 33.68 -56 50 26.3           ~ 560 1
21 ACO 2390 ClG 21 53 34.6 +17 40 11           ~ 619 2

    Equat.    Gal    SGal    Ecl

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2020.03.29-12:21:18

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