2000AJ....119..580B


C.D.S. - SIMBAD4 rel 1.7 - 2021.05.18CEST02:43:55

2000AJ....119..580B - Astron. J., 119, 580-592 (2000/February-0)

VLA H I imaging of the brightest spiral galaxies in Coma.

BRAVO-ALFARO H., CAYATTE V., VAN GORKOM J.H. and BALKOWSKI C.

Abstract (from CDS):

We have obtained 21 cm images of 19 spiral galaxies in the Coma cluster, using the VLA in its C and D configurations. The sample selection was based on morphology, brightness, and optical diameters of galaxies within one Abell radius (1°.2). The H I-detected, yet deficient galaxies show a strong correlation in their H I properties with projected distance from the cluster center. The most strongly H I-deficient (Def_H I_>0.4) galaxies are located inside a radius of 30' (∼0.6 Mpc) from the center of Coma, roughly the extent of the central X-ray emission. These central galaxies show clear asymmetries in their H I distribution and/or shifts between the optical and 21 cm positions. Another 12 spirals were not detected in H I with typical H I mass upper limits of 108 M. Seven of the 12 nondetections are located in the central region of Coma, roughly within 30' from the center. The other nondetections are to the east and southwest of the center. We looked for seven so-called blue disk galaxies in Coma in H I and detected six. These galaxies are relatively close to the central region of Coma. The nondetected one is the closest to the center. The six detected blue galaxies are mildly H I deficient. We did a more sensitive search for H I from 11 of the 15 known poststarburst galaxies in Coma. None were detected with typical H I mass limits between 3 and 7x107 M. Our results present and enhance a picture already familiar for well-studied clusters. H I poor galaxies (deficient ones and nondetections) are concentrated toward the center of the cluster. The H I morphology of the central galaxies with optical disks extending beyond the H I disks is unique to cluster environments and strongly suggests an interaction with the intergalactic medium (IGM). A new result in Coma is the clumpy distribution of gas deficiency. In the cluster center the deficient galaxies are to the east while the nondetections are to the west. In the outer parts the gas rich galaxies are north of Coma, nondetected spirals are found in the NGC 4944 group to the east, and the NGC 4839 group is to the southwest. This supports recent findings that merging of groups is ongoing in the center of Coma, farther out the NGC 4944 and NGC 4839 must have passed at least once through the core, and the galaxies to the north have yet to fall in.

Abstract Copyright:

Journal keyword(s): Galaxies: Clusters: Individual: Name: Coma

Simbad objects: 61

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Number of rows : 61

N Identifier Otype ICRS (J2000)
RA
ICRS (J2000)
DEC
Mag U Mag B Mag V Mag R Mag I Sp type #ref
1850 - 2021
#notes
1 ACO 262 ClG 01 52 50.4 +36 08 46           ~ 661 1
2 NAME Hydra I Cluster ClG 10 36 36.0 -27 31 04           ~ 785 1
3 NAME Vir I ClG 12 26 32.1 +12 43 24   10.00 8.49     ~ 6036 0
4 IC 3913 EmG 12 56 28.589 +27 17 28.49   15.82   14.67   ~ 79 0
5 MCG+05-31-019 LIN 12 56 49.666 +27 05 37.87   15.7   14.48   ~ 45 0
6 2MASX J12570456+2746228 EmG 12 57 04.545 +27 46 22.84   16       ~ 23 0
7 2MASX J12571778+2748388 EmG 12 57 17.8145683002 +27 48 39.307877578   15       ~ 35 0
8 2MASX J12572169+2752498 GiC 12 57 21.7394082365 +27 52 49.635171950   16       ~ 30 0
9 NAME NGC 4839 Group GrG 12 57 24.3 +27 29 51           ~ 63 0
10 NGC 4839 rG 12 57 24.353 +27 29 51.80 13.56 13.02 12.06     ~ 435 3
11 UGC 8071 LIN 12 57 30.000 +28 11 12.86   15.4       ~ 54 0
12 MCG+05-31-036 AGN 12 57 54.408 +27 29 26.48   16.38   15.02   ~ 38 1
13 MCG+05-31-037 LIN 12 58 01.5648185878 +27 29 22.848609724   14.5       ~ 36 0
14 NGC 4848 AGN 12 58 05.5774186519 +28 14 33.264194270   14.2   13.53   ~ 177 0
15 MCG+05-31-041 SBG 12 58 09.254 +28 42 31.51   15.5 14.76 15.14   ~ 102 0
16 2MASS J12581865+2718387 EmG 12 58 18.628 +27 18 38.96   16.95   15.77   ~ 50 0
17 2MASX J12581922+2745437 GiC 12 58 19.226 +27 45 43.71   16       ~ 28 0
18 NGC 4851 GiG 12 58 21.706 +28 08 55.51 15.87 15.2 14.49     ~ 45 0
19 IC 839 GiG 12 58 22.1615677369 +28 09 07.651080810 16.24 15.2 14.94     ~ 36 0
20 LEDA 44461 AGN 12 58 28.408 +27 33 33.76   16       ~ 34 0
21 NGC 4853 AGN 12 58 35.1987418585 +27 35 46.973010001 13.96 14.68 13.00 13.24   ~ 131 1
22 Mrk 56 EmG 12 58 35.335 +27 15 52.92   15.4   15.18   ~ 86 0
23 IC 3943 LIN 12 58 36.3517251446 +28 06 49.479659904 15.63 15.6 14.13     ~ 52 0
24 Mrk 57 EmG 12 58 37.282 +27 10 35.81   15.88   14.82   ~ 97 0
25 IC 3949 AGN 12 58 55.952 +27 50 00.40 15.31 15.10 14.26 14.781 14.083 ~ 114 1
26 NGC 4858 EmG 12 59 02.070 +28 06 56.39 15.33 15.5 15.02     ~ 99 0
27 Mrk 58 EmG 12 59 05.295 +27 38 39.85 14.90 15.1 14.54     ~ 107 0
28 IC 3955 GiC 12 59 06.0289909391 +27 59 48.150152182 15.78 15.591 14.31 14.011 13.323 ~ 88 0
29 NGC 4874 LIN 12 59 35.709 +27 57 33.80 13.01 13.7 11.40 12.122 11.386 ~ 735 3
30 2MASX J12594009+2837507 GiC 12 59 40.096 +28 37 50.78   15.6       ~ 52 0
31 LEDA 44651 G 12 59 40.2735305464 +27 58 05.677021012 17.47 17.375 16.02 15.812 15.153 ~ 55 0
32 ACO 1656 ClG 12 59 48.7 +27 58 50           ~ 4351 2
33 2MASX J13000297+2814253 GiC 13 00 03.0042534431 +28 14 25.115725438 17.27 16 16.37     ~ 30 0
34 2MASX J13001027+2751502 GiC 13 00 10.272 +27 51 50.28 17.39 17.103 16.275 15.759 15.169 ~ 38 0
35 2MASX J13002922+2730536 GiC 13 00 29.227 +27 30 53.62   15.5       ~ 23 0
36 7W 1258+27W06 EmG 13 00 33.732 +27 38 15.64   15.4       ~ 100 0
37 IC 4040 rG 13 00 37.861 +28 03 28.68 15.13 15.1 14.76 14.708 13.981 ~ 147 0
38 2MASX J13003877+2800516 G 13 00 38.7658555580 +28 00 52.330251467 16.058 15.75 14.844 14.291 13.69 ~ 62 0
39 IC 842 GiG 13 00 39.540 +29 01 09.64 14.85 14.72 13.93     ~ 105 1
40 2MASX J13004067+2831116 GiC 13 00 40.675 +28 31 11.64   16       ~ 35 0
41 NGC 4907 LIN 13 00 48.757 +28 09 29.62 15.27 14.6 13.81     ~ 84 0
42 NGC 4911 LIN 13 00 56.0616026595 +27 47 27.151217355 14.58 13.7 13.33 12.601 12.068 ~ 189 0
43 2MASX J13005921+2753592 EmG 13 00 59.259 +27 53 59.34 15.99 15.6 14.61     ~ 56 0
44 LEDA 1838241 GiC 13 01 14.957 +28 31 18.32           ~ 17 0
45 2MASX J13012507+2840376 GiC 13 01 25.0686818587 +28 40 38.052613761   15.38 14.75     ~ 59 0
46 NGC 4922 SyG 13 01 25.2660290577 +29 18 49.879144069   15.60 14.67 13.85   ~ 231 5
47 NGC 4921 LIN 13 01 26.1220299719 +27 53 09.631792431   13.7       ~ 177 0
48 IC 4088 AGN 13 01 43.3696970410 +29 02 40.959951293 15.01 14.70 13.82     ~ 115 1
49 SDSS J130147.06+290435.9 G 13 01 47.067 +29 04 35.92           ~ 6 0
50 2MASX J13020015+2746579 AGN 13 02 00.1380286789 +27 46 57.858881675   15.4       ~ 64 0
51 MCG+05-31-107 EmG 13 02 07.8577523999 +27 38 53.583458834   15.1       ~ 98 0
52 MCG+05-31-108 GiG 13 02 12.774 +28 12 53.47   15.5       ~ 48 0
53 2MASX J13021432+2806049 GiC 13 02 14.330 +28 06 04.97   16       ~ 16 0
54 IC 4106 GiG 13 02 38.4436734376 +28 06 52.448257653   15.5       ~ 31 0
55 NGC 4944 GiG 13 03 49.9448514200 +28 11 08.557001189   13.3   12.69   ~ 95 0
56 NAME Ursa Major Cluster ClG 15 08.8 +67 07           ~ 390 0
57 ACO 2151 ClG 16 05 15.0 +17 44 55           ~ 561 3
58 ACO 2670 ClG 23 54 13.64 -10 25 08.7           ~ 340 0
59 NAME NGC 4889 Group GrG ~ ~           ~ 5 0
60 NAME NGC 4874 Group GrG ~ ~           ~ 7 0
61 NAME NGC 4944 Group GrG ~ ~           ~ 1 0

    Equat.    Gal    SGal    Ecl

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2021.05.18-02:43:55

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