2018MNRAS.476.5591B

Query : 2018MNRAS.476.5591B

2018MNRAS.476.5591B - Mon. Not. R. Astron. Soc., 476, 5591-5620 (2018/June-1)

Shocks and cold fronts in merging and massive galaxy clusters: new detections with Chandra.

BOTTEON A., GASTALDELLO F. and BRUNETTI G.

Abstract (from CDS):

A number of merging galaxy clusters show the presence of shocks and cold fronts, i.e. sharp discontinuities in surface brightness and temperature. The observation of these features requires an X-ray telescope with high spatial resolution like Chandra, and allows to study important aspects concerning the physics of the intracluster medium (ICM), such as its thermal conduction and viscosity, as well as to provide information on the physical conditions leading to the acceleration of cosmic rays and magnetic field amplification in the cluster environment. In this work we search for new discontinuities in 15 merging and massive clusters observed with Chandra by using different imaging and spectral techniques of X-ray observations. Our analysis led to the discovery of 22 edges: six shocks, eight cold fronts, and eight with uncertain origin. All the six shocks detected have M< 2 derived from density and temperature jumps. This work contributed to increase the number of discontinuities detected in clusters and shows the potential of combining diverse approaches aimed to identify edges in the ICM. A radio follow-up of the shocks discovered in this paper will be useful to study the connection between weak shocks and radio relics.

Abstract Copyright: © 2018 The Author(s) Published by Oxford University Press on behalf of the Royal Astronomical Society

Journal keyword(s): shock waves - galaxies: clusters: general - galaxies: clusters: intracluster medium - X-rays: galaxies: clusters

Simbad objects: 41

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Number of rows : 41
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 2744 ClG 00 14 20.03 -30 23 17.8           ~ 1077 0
2 ACO 2813 ClG 00 43 22.8 -20 37 21           ~ 111 0
3 NAME XMMU J0044.0-2033 ClG 00 44 05.20 -20 33 59.7           ~ 40 0
4 ACO 115 ClG 00 55 59 +26 23.2           ~ 295 1
5 ACT-CL J0102-4915 ClG 01 02 52.50 -49 14 58.0           ~ 296 0
6 ACO 370 ClG 02 39 50.5 -01 35 08           ~ 825 0
7 ACO 399 ClG 02 57 56.4 +13 00 59           ~ 420 0
8 ACO 401 ClG 02 58 50.3 +13 34 07           ~ 592 0
9 ACT-CL J0417.5-1154 ClG 04 17 34.6 -11 54 32           ~ 116 0
10 ACO 521 ClG 04 54 08.6 -10 14 39           ~ 279 0
11 ACO 520 ClG 04 54 10.1 +02 55 38           ~ 465 0
12 ACT-CL J0528.8-3927 ClG 05 28 56.2 -39 27 49           ~ 78 0
13 ACT-CL J0553.4-3342 ClG 05 53 27.200 -33 42 53.02           ~ 74 0
14 ClG J0603.3+4214 ClG 06 03.3 +42 14           ~ 141 0
15 ACO S 592 ClG 06 38 49.40 -53 58 40.8           ~ 75 0
16 ClG 0657-56 ClG 06 58 26.9 -55 58 21           ~ 1077 1
17 ClG J0717+3745 ClG 07 17 36.50 +37 45 23.0           ~ 511 0
18 ACO 665 ClG 08 30 45.2 +65 52 55           ~ 457 0
19 ACO 3411 ClG 08 41 47.7 -17 28 46           ~ 81 0
20 ACO 754 ClG 09 09 14.8 -09 40 35           ~ 695 1
21 MCS J1149.5+2223 ClG 11 49 35.8 +22 23 55           ~ 546 0
22 ACO 1413 ClG 11 55 12.87 +23 23 46.9           ~ 456 0
23 ACO 1656 ClG 12 59 44.40 +27 54 44.9           ~ 5141 2
24 ACO 1689 ClG 13 11 29.5 -01 20 28           ~ 1178 0
25 ACO 1758 ClG 13 32 32.1 +50 30 37           ~ 266 2
26 NGC 5264 GiG 13 41 36.683 -29 54 47.25 13.86 12.96 12.39 12.14 15.83 ~ 164 1
27 ACO 1914 ClG 14 25 57.4 +37 49 54           ~ 338 0
28 4C 38.39 rG 14 26 05.87 +37 48 58.1           ~ 29 1
29 ACO 2104 ClG 15 40 06.8 -03 17 39           ~ 113 0
30 ACO 2142 ClG 15 58 26.5 +27 13 52           ~ 825 0
31 ACO 2218 ClG 16 35 54.0 +66 13 00           ~ 827 1
32 BAX 249.5848-64.5165 ClG 16 38 13.2 -64 21 21           ~ 123 0
33 ACO 2219 ClG 16 40 22.1 +46 42 20           ~ 381 0
34 NAME LHB X 16 42.0 +02 19           ~ 414 0
35 ACO 2256 ClG 17 03 37.5 +78 37 23           ~ 928 1
36 ACO 2255 ClG 17 12 56.0 +64 04 06           ~ 605 0
37 ACO 2319 ClG 19 21 14.0 +43 56 57           ~ 495 1
38 ACO 3667 ClG 20 12 33.68 -56 50 26.3           ~ 676 1
39 2C 1820 SyG 21 55 52.324 +38 00 28.51   19.20       ~ 234 1
40 ACO 3827 ClG 22 01 49.1 -59 57 15           ~ 178 0
41 ACO S 1077 ClG 22 58 52.34 -34 46 54.6           ~ 198 0

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