2023MNRAS.519.4128S

Query : 2023MNRAS.519.4128S

2023MNRAS.519.4128S - Mon. Not. R. Astron. Soc., 519, 4128-4141 (2023/March-1)

H I absorption associated with Norma's brightest cluster galaxy.

SARAF M., WONG O.I., CORTESE L. and KORIBALSKI B.S.

Abstract (from CDS):

ESO 137-G006 is the brightest cluster galaxy (BCG) of the cool-core and dynamically young Norma cluster. We discover an atomic hydrogen (H I) absorption line associated with this BCG using the Australia Telescope Compact Array. We estimate a gas column density of $\approx (1.3 \pm 0.2) \times 10^{20}\, T_{\rm {spin}}$ atoms cm–2 with spin temperature, Tspin ≤ 194 K, consistent with the H I properties of other early-type galaxies and cool-core cluster BCGs. The relationship between the presence of cold gas and a cluster cooling flow is unclear. Our results support the scenario that ESO 137-G006 may be a recent arrival to the cluster centre and not the original BCG. This scenario is consistent with the observed spatial alignment of the BCG's wide-angle tail radio lobes with Norma's X-ray sub-cluster and the significant line-of-sight velocity offset between the mean velocity of Norma and that of the BCG.

Abstract Copyright: © 2022 The Author(s) Published by Oxford University Press on behalf of Royal Astronomical Society

Journal keyword(s): galaxies: clusters: individual: Norma cluster (ACO 3627) - galaxies: individual: ESO 137-G006 - galaxies: elliptical and lenticular, cD - radio lines: galaxies

Simbad objects: 25

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Number of rows : 25
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 407 ClG 03 01 43.7 +35 49 48           ~ 113 0
2 MCG+06-07-034 rG 03 01 51.4 +35 50 23           ~ 179 1
3 ACO 426 ClG 03 19 47.6 +41 30 54           ~ 2508 1
4 NGC 1275 Bla 03 19 48.1599902040 +41 30 42.108850836   13.10 12.48 11.09   ~ 4243 3
5 ZwCl 0335+0956 ClG 03 38 35.3 +09 57 54           ~ 402 1
6 MCG-02-24-007 LIN 09 18 05.66848602 -12 05 43.8060823   14.38 14.8     ~ 1077 1
7 ACO 780 ClG 09 18 30 -12 15.7           ~ 469 0
8 NGC 4874 LIN 12 59 35.7093764280 +27 57 33.293892204 13.01 13.7 12.71 12.27 11.386 ~ 814 3
9 ACO 1656 ClG 12 59 44.40 +27 54 44.9           ~ 5141 2
10 NGC 4889 EmG 13 00 08.097 +27 58 37.29 12.93 13.0 11.30 11.652 10.906 ~ 742 1
11 ACO 1795 ClG 13 48 47.4 +26 34 55           ~ 1330 0
12 Z 162-10 LIN 13 48 52.4892734448 +26 35 34.353002688   14.0       ~ 241 2
13 QSO B1353-341 Bla 13 56 05.38656310 -34 21 10.8588959   19.4   18.50   ~ 49 1
14 ACT-CL J1521.8+0742 ClG 15 21 48.8 +07 43 41     15.13     ~ 326 0
15 NGC 5920 LIN 15 21 51.870 +07 42 31.97   15.5       ~ 137 1
16 ICRF J155821.9-140959 Sy2 15 58 21.94812 -14 09 59.0519   19.0   12.15   ~ 77 1
17 ACO 3627 ClG 16 14 22.5 -60 52 07           ~ 340 2
18 ESO 137-6 rG 16 15 03.864 -60 54 26.14   13.08 12.83 11.33   ~ 119 0
19 ESO 137-8 BiC 16 15 46.099 -60 55 07.19   12.84   11.10   ~ 51 0
20 PKS 1613-586 rG 16 17 17.89125660 -58 48 07.8601409   18.23       ~ 156 1
21 ICRF J193925.0-634245 Sy2 19 39 25.0245304992 -63 42 45.640373400   18.87 18.37 17.64   ~ 1332 2
22 MCG+07-41-003 Bla 19 59 28.35656837 +40 44 02.0972325   16.22 15.10     ~ 2537 2
23 ACO 2597 ClG 23 25 19.70 -12 07 27.7           ~ 572 0
24 LEDA 71390 Sy1 23 25 19.72968960 -12 07 27.0814800   15.45 15.46     ~ 185 2
25 NAME Norma Wall reg ~ ~           ~ 15 0

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