2018A&A...618A..74U

Query : 2018A&A...618A..74U

2018A&A...618A..74U - Astronomy and Astrophysics, volume 618A74-74 (2018/1-0)

X-ray study of the double radio relic Abell 3376 with Suzaku.

URDAMPILLETA I., AKAMATSU H., MERNIER F., KAASTRA J.S., DE PLAA J., OHASHI T., ISHISAKI Y. and KAWAHARA H.

Abstract (from CDS):

We present an X-ray spectral analysis of the nearby double radio relic merging cluster Abell 3376 (z=0.046), observed with the Suzaku XIS instrument. These deep (∼360ks) observations cover the entire double relic region in the outskirts of the cluster. These diffuse radio structures are amongst the largest and arc-shaped relics observed in combination with large-scale X-ray shocks in a merging cluster. We confirm the presence of a stronger shock (MW=2.8±0.4) in the western direction at r∼26', derived from a temperature and surface brightness discontinuity across the radio relic. In the east, we detect a weaker shock (ME=1.5±0.1) at r∼8', possibly associated with the "notch" of the eastern relic, and a cold front at r∼3'. Based on the shock speed calculated from the Mach numbers, we estimate that the dynamical age of the shock front is ∼0.6Gyr after core passage, indicating that Abell 3376 is still an evolving merging cluster and that the merger is taking place close to the plane of the sky. These results are consistent with simulations and optical and weak lensing studies from the literature.

Abstract Copyright: © ESO 2018

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

Simbad objects: 19

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Number of rows : 19
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 115 ClG 00 55 59 +26 23.2           ~ 295 1
2 ACT-CL J0102-4915 ClG 01 02 52.50 -49 14 58.0           ~ 296 0
3 ACO 521 ClG 04 54 08.6 -10 14 39           ~ 279 0
4 ACO 520 ClG 04 54 10.1 +02 55 38           ~ 465 0
5 QSO B0551-36 QSO 05 52 46.1824785360 -36 37 27.608212524   17.72 17.57     ~ 98 0
6 MCG-07-13-003 BiC 06 00 41.120 -40 02 39.82   14.66   12.93   ~ 48 1
7 ACO 3376 ClG 06 01 25.000 -39 59 51.00           ~ 334 0
8 2MASX J06020973-3956597 BiC 06 02 09.7171806672 -39 56 59.386182324   14   13.93   ~ 27 0
9 ClG J0603.3+4214 ClG 06 03.3 +42 14           ~ 141 0
10 ClG 0657-56 ClG 06 58 26.9 -55 58 21           ~ 1077 1
11 ACO 665 ClG 08 30 45.2 +65 52 55           ~ 457 0
12 NAME Abell 3411-3412 cluster ClG 08 42.0 -17 32           ~ 15 0
13 ACO 1656 ClG 12 59 44.40 +27 54 44.9           ~ 5141 2
14 ACO 2034 ClG 15 10 03.9 +33 30 57           ~ 248 1
15 NAME LHB X 16 42.0 +02 19           ~ 414 0
16 ACO 2256 ClG 17 03 37.5 +78 37 23           ~ 928 1
17 ACO 2255 ClG 17 12 56.0 +64 04 06           ~ 605 0
18 ACO 3667 ClG 20 12 33.68 -56 50 26.3           ~ 676 1
19 CIZA J2242.8+5301 ClG 22 42 53.0 +53 01 05           ~ 228 0

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