2021A&A...650A..76H


Query : 2021A&A...650A..76H

2021A&A...650A..76H - Astronomy and Astrophysics, volume 650A, 76-76 (2021/6-1)

H I content in Coma cluster substructure.

HEALY J., BLYTH S.-L., VERHEIJEN M.A.W., HESS K.M., SERRA P., VAN DER HULST J.M., JARRETT T.H., YIM K. and JOZSA G.I.G.

Abstract (from CDS):


Context. Galaxy clusters are some of largest structures in the universe. These very dense environments tend to be home to higher numbers of evolved galaxies than found in lower-density environments.It is well known that dense environments can influence the evolution of galaxies through the removal of the neutral gas (HI) reservoirs that fuel star formation.It is unclear which environment has a stronger effect: the local environment (i.e., the substructure within the cluster), or the cluster itself.
Aims. Using the new HI data from the Westerbork Coma Survey, we explore the average HI content of galaxies across the cluster comparing galaxies that reside in substructure to those that do not.
Methods. We applied the Dressler-Shectman test to our newly compiled redshift catalogue of the Coma cluster to search for substructure. With so few of the Coma galaxies directly detected in HI, we used the HI stacking technique to probe the average HI content below what can be directly detected.
Results. Using the Dressler-Shectman test, we find 15 substructures within the footprint of the Westerbork Coma Survey. We compare the average HI content for galaxies within substructure to those not in substructure. Using the HI stacking technique, we find that those Coma galaxies not detected in HI are more than 10-50 times more HI deficient than expected, which supports the scenario of an extremely efficient and rapid quenching mechanism. By studying the galaxies that are not directly detected in HI, we also find Coma to be more HI deficient than previously thought.

Abstract Copyright: © ESO 2021

Journal keyword(s): galaxies: clusters: general - galaxies: evolution - galaxies: groups: general - galaxies: general

VizieR on-line data: <Available at CDS (J/A+A/650/A76): coma.dat>

Status at CDS : Examining the need for a new acronym. // Tables of objects will be appraised for possible ingestion in SIMBAD.

Simbad objects: 36

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Number of rows : 36
N Identifier Otype ICRS (J2000)
RA
ICRS (J2000)
DEC
Mag U Mag B Mag V Mag R Mag I Sp type #ref
1850 - 2022
#notes
1 ACO 779 ClG 09 19 48.0 +33 45 32           ~ 247 0
2 ACO 963 ClG 10 17 09.6 +39 01 00           ~ 372 0
3 ACO S 636 ClG 10 29 41.0957 -35 19 32.908           ~ 212 0
4 NAME Coma Supercluster SCG 11 23 +23.9           ~ 256 0
5 ACO 1367 ClG 11 44 44.6 +19 41 59           ~ 1041 1
6 NAME Virgo Cluster ClG 12 26 32.1 +12 43 24           ~ 6316 0
7 [ABD2005] G11 GrG 12 56 34.8 +26 58 33           ~ 2 0
8 NAME NGC 4839 Group GrG 12 57 24.3 +27 29 51           ~ 73 0
9 NGC 4839 rG 12 57 24.3563164776 +27 29 52.203087132 13.56 13.02 12.06     ~ 451 3
10 [ABD2005] G12 GrG 12 57 38.2 +27 40 21           ~ 4 0
11 MLCG 0636 CGG 12 57 48.9 +27 52 01           ~ 5 0
12 NGC 4859 GiG 12 59 01.8246195240 +26 48 56.446550604   14.8   14.81   ~ 54 0
13 NGC 4858 EmG 12 59 02.0718950520 +28 06 56.228264028 15.33 15.5 15.02     ~ 106 0
14 NGC 4860 GiG 12 59 03.9057463440 +28 07 25.326557148 14.84 14.7 13.24     ~ 150 0
15 NGC 4869 rG 12 59 23.3588349024 +27 54 41.731884360 15.03 14.9 13.52 13.292 12.536 ~ 272 0
16 NGC 4874 LIN 12 59 35.7093764280 +27 57 33.293892204 13.01 13.7 11.40 12.122 11.386 ~ 758 3
17 ACO 1656 ClG 12 59 48.7 +27 58 50           ~ 4548 2
18 [ABD2005] G1 GrG 12 59 55.4 +27 59 13           ~ 3 0
19 NGC 4892 LIN 13 00 03.5339372112 +26 53 53.179178640   14.7       ~ 69 0
20 NGC 4889 EmG 13 00 08.097 +27 58 37.29 12.93 13.0 11.30 11.652 10.906 ~ 677 1
21 NGC 4894 G 13 00 16.5193713624 +27 58 03.082120068 16.28 16.106 15.04 14.71 14.051 ~ 66 0
22 NGC 4911 LIN 13 00 56.0616749160 +27 47 27.152821212 14.58 13.7 13.33 12.601 12.068 ~ 198 0
23 NGC 4919 GiG 13 01 17.5966333536 +27 48 32.765879124   14.9       ~ 81 0
24 [ABD2005] G4 GrG 13 01 25.6 +27 46 03           ~ 2 0
25 NGC 4921 LIN 13 01 26.1222244152 +27 53 09.629006748   13.7       ~ 190 0
26 NGC 4923 EmG 13 01 31.7992415376 +27 50 51.100173564   14.7       ~ 104 0
27 [ABD2005] G7 GrG 13 01 47.4 +28 01 10           ~ 3 0
28 NGC 4926 LIN 13 01 53.7302453520 +27 37 28.027389360   14.1       ~ 154 0
29 NGC 4934 AGN 13 03 16.2443199696 +28 01 49.356583212   15.0       ~ 61 0
30 NGC 4943 AGN 13 03 44.9426418120 +28 05 03.257928384   15.6       ~ 33 0
31 [ABD2005] G5 GrG 13 04 21.5 +27 58 00           ~ 2 0
32 NAME Ursa Major Cluster ClG 15 08.8 +67 07           ~ 402 0
33 ACO 2192 ClG 16 27 24.4 +42 40 43           ~ 59 0
34 ACO 2199 ClG 16 28 37.0 +39 31 28           ~ 1132 1
35 NAME NGC 4889 Group GrG ~ ~           ~ 6 0
36 NAME NGC 4874 Group GrG ~ ~           ~ 8 0

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2022.09.24-17:22:38

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