2020MNRAS.496.4654C

Query : 2020MNRAS.496.4654C

2020MNRAS.496.4654C - Mon. Not. R. Astron. Soc., 496, 4654-4673 (2020/August-3)

The ram pressure stripped radio tails of galaxies in the Coma cluster.

CHEN H., SUN M., YAGI M., BRAVO-ALFARO H., BRINKS E., KENNEY J., COMBES F., SIVANANDAM S., JACHYM P., FOSSATI M., GAVAZZI G., BOSELLI A., NULSEN P., SARAZIN C., GE C., YOSHIDA M. and ROEDIGER E.

Abstract (from CDS):

Previous studies have revealed a population of galaxies in galaxy clusters with ram pressure stripped (RPS) tails of gas and embedded young stars. We observed 1.4 GHz continuum and H I emission with the Very Large Array in its B-configuration in two fields of the Coma cluster to study the radio properties of RPS galaxies. The best continuum sensitivities in the two fields are 6 and 8 uJy per 4 arcsec beam, respectively, which are 4 and 3 times deeper than those previously published. Radio continuum tails are found in 10 (8 are new) out of 20 RPS galaxies, unambiguously revealing the presence of relativistic electrons and magnetic fields in the stripped tails. Our results also hint that the tail has a steeper spectrum than the galaxy. The 1.4 GHz continuum in the tails is enhanced relative to their H α emission by a factor of ∼7 compared to the main bodies of the RPS galaxies. The 1.4 GHz continuum of the RPS galaxies is also enhanced relative to their infrared emission by a factor of ∼2 compared to star-forming galaxies. The enhancement is likely related to ram pressure and turbulence in the tail. We furthermore present H I detections in three RPS galaxies and upper limits for the other RPS galaxies. The cold gas in D100's stripped tail is dominated by molecular gas, which is likely a consequence of the high ambient pressure. No evidence of radio emission associated with ultra-diffuse galaxies is found in our data.

Abstract Copyright: © 2020 The Author(s) Published by Oxford University Press on behalf of the Royal Astronomical Society

Journal keyword(s): galaxies: clusters: individual: Coma - galaxies: interactions - galaxies: ISM - radio continuum: galaxies

VizieR on-line data: <Available at CDS (J/MNRAS/496/4654): tableb1.dat>

Simbad objects: 33

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Number of rows : 33
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 Z 97-73 rG 11 42 56.45030 +19 57 58.3716 15.85 16.25   15.27   ~ 106 0
2 Z 97-79 GiC 11 43 13.096 +20 00 17.52 15.91 16.52   15.56   ~ 113 0
3 Z 97-87 GiC 11 43 49.1088652488 +19 58 05.954438316 13.96 14.35 13.59 13.29   ~ 237 3
4 ACO 1367 ClG 11 44 44.6 +19 41 59           ~ 1127 1
5 NGC 4402 GiC 12 26 07.65312 +13 06 47.9376   12.55       ~ 421 2
6 NAME Virgo Cluster ClG 12 30 47.8 +12 23 07           ~ 7107 0
7 NGC 4522 GiG 12 33 39.657 +09 10 29.54   13.6       ~ 396 0
8 NVSS J125720+282727 Rad 12 57 20.40 +28 27 27.1           ~ 1 0
9 LEDA 3098096 GiC 12 57 50.23634 +28 10 13.3573     16.73 16.89   ~ 21 0
10 LEDA 83707 GiC 12 57 56.79626 +27 59 30.3056   16 16.55 16.70   ~ 33 0
11 MCG+05-31-035 EmG 12 57 57.748 +28 03 41.50   16 17.10 17.09   ~ 83 0
12 NGC 4848 AGN 12 58 05.5778304792 +28 14 33.253619100   14.2   13.53   ~ 211 0
13 NGC 4853 rG 12 58 35.1979266912 +27 35 46.930900632 13.96 14.68 13.00 13.24   ~ 156 1
14 LEDA 126817 GiC 12 58 42.589 +27 45 37.78     16.30 16.15   ~ 54 0
15 NGC 4854 GiG 12 58 47.4113103480 +27 40 29.084942676 15.66 15.2 13.83 13.48   ~ 104 0
16 IC 3949 AGN 12 58 55.952 +27 50 00.40 15.31 15.10 14.26 14.781 14.083 ~ 148 1
17 NGC 4858 EmG 12 59 02.0718950520 +28 06 56.228264028 15.33 15.5 15.08 15.16   ~ 126 0
18 Z 160-73 EmG 12 59 05.2918849008 +27 38 40.186270032 14.90 15.1 14.54     ~ 129 0
19 NGC 4869 EmG 12 59 23.3588349024 +27 54 41.731884360 15.03 14.9 13.52 13.292 12.536 ~ 286 0
20 LEDA 44643 EmG 12 59 39.8152735224 +27 34 35.193798804   16.53 15.56 15.42   ~ 55 0
21 ACO 1656 ClG 12 59 44.40 +27 54 44.9           ~ 5141 2
22 2MASX J12595617+2744473 LSB 12 59 56.1192738432 +27 44 46.724602092 17.15 17.331 16.15 15.87 16.04 ~ 37 0
23 GMP 3016 GiC 13 00 01.03440 +28 04 54.7752 18.78   17.69 17.55   ~ 18 0
24 LEDA 126767 LSB 13 00 08.05642 +27 46 23.9143 17.45 17.675 16.57 16.45 16.398 ~ 36 0
25 Z 160-243 AGN 13 00 09.1410758256 +27 51 59.343513912 16.418 16.39 15.51 15.34 14.835 ~ 133 0
26 LEDA 44765 EmG 13 00 29.227 +27 30 53.62   15.5 15.22 14.98   ~ 32 0
27 Z 160-86 EmG 13 00 33.732 +27 38 15.64   15.4 14.54 14.23   ~ 117 0
28 IC 4040 EmG 13 00 37.9703238053 +28 03 26.882897167 15.13 15.1 15.04 14.74 13.981 ~ 175 2
29 NGC 4911 LIN 13 00 56.0616749160 +27 47 27.152821212 14.58 13.7 13.33 12.601 12.068 ~ 218 1
30 NGC 4921 Sy2 13 01 26.1222244152 +27 53 09.629006748   13.7       ~ 225 0
31 US 371 BLL 13 10 28.66385420 +32 20 43.7828340   15.61 15.24 17.91   ~ 917 1
32 3C 286 Sy1 13 31 08.2883506368 +30 30 32.960091564   17.51 17.25     ~ 4558 2
33 ESO 137-1 AG? 16 13 27.305 -60 45 50.59   14.84   13.87   ~ 132 0

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