2007AJ....133..504K

Query : 2007AJ....133..504K

2007AJ....133..504K - Astron. J., 133, 504-517 (2007/February-0)

The Hubble flow around the Centaurus A/M83 galaxy complex.

KARACHENTSEV I.D., TULLY R.B., DOLPHIN A., SHARINA M., MAKAROVA L., MAKAROV D., SAKAI S., SHAYA E.J., KASHIBADZE O.G., KARACHENTSEVA V. and RIZZI L.

Abstract (from CDS):

We present Hubble Space Telescope ACS images and color-magnitude diagrams for 24 nearby galaxies in and near the constellation of Centaurus with radial velocities VLG<550 km/s. Distances are determined based on the luminosities of stars at the tip of the red giant branch that range from 3.0 to 6.5 Mpc. The galaxies are concentrated in two spatially separated groups around Cen A (NGC 5128) and M83 (NGC 5236). The Cen A group itself has a mean distance of 3.76±0.05 Mpc, a velocity dispersion of 136 km/s, a mean harmonic radius of 192 kpc, and an estimated orbital/virial mass of (6.4-8.1)x1012 M☉. This elliptical-dominated group is found to have a relatively high mass-to-light ratio: M/LB=125 M☉/L☉. For the M83 group we derived a mean distance of 4.79±0.10 Mpc, a velocity dispersion of 61 km/s, a mean harmonic radius of 89 kpc, and an estimated orbital/virial mass of (0.8-0.9)x1012 M☉. This spiral-dominated group is found to have a relatively low M/LB=34 M☉/L☉. The radius of the zero-velocity surface around Cen A lies at R0=1.40±0.11 Mpc, implying a total mass within R0 of MT=(6.0±1.4)x1012 M☉. This value is in good agreement with the Cen A orbital/virial mass estimates and provides confirmation of the relatively high M/LB of this elliptical-dominated group. The centroids of both groups, as well as surrounding field galaxies, have very small peculiar velocities, <25 km/s, with respect to the local Hubble flow with H0=68 km/s/Mpc.

Abstract Copyright: ∼

Journal keyword(s): Galaxies: Clusters: General - Galaxies: Distances and Redshifts - Galaxies: Kinematics and Dynamics

VizieR on-line data: <Available at CDS (J/AJ/133/504): table1.dat table2.dat>

Simbad objects: 94

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Number of rows : 94
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 NAME IC 342 Group GrG 03 48 42 +68 00.8           ~ 102 1
2 ESO 59-1 AG? 07 31 18.20 -68 11 16.8   13.74   12.80 13.7 ~ 81 1
3 NGC 2403 AGN 07 36 51.3381434280 +65 36 09.650825640 9.31 8.84 8.38 8.19   ~ 1887 1
4 NGC 2915 AG? 09 26 11.532 -76 37 34.75 13.13 12.93 12.68 11.90 12.8 ~ 371 2
5 NAME M 81-82 Group GrG 09 55 +69.1           ~ 758 0
6 M 81 Sy2 09 55 33.1726556496 +69 03 55.062505368   7.89 6.94     ~ 4725 3
7 Z 36-12 H2G 10 00 00.8217342072 +05 20 09.533389560 12.77 12.25 11.89 11.71   ~ 569 0
8 NGC 3109 AG? 10 03 06.877 -26 09 34.46 11.10 10.42 10.04 9.91   ~ 825 2
9 NAME Antlia Dwarf Galaxy G 10 04 03.9 -27 20 01 16.73 15.69 15.17 15.00   ~ 221 1
10 MCG-01-26-030 H2G 10 11 00.5 -04 41 30 12.48 12.13 11.93 11.78   ~ 789 2
11 ESO 376-16 AG? 10 43 27.06 -37 02 33.4   15.44   14.64 15.1 ~ 29 0
12 ESO 318-13 AG? 10 47 41.60 -38 51 13.2   15.02   13.96   ~ 45 0
13 ESO 215-9 AG? 10 57 29.90 -48 10 43.0   16.03   15.02 15.0 ~ 79 0
14 NGC 3621 Sy2 11 18 16.300 -32 48 45.36 10.10 9.44 9.56 8.07 10.1 ~ 661 3
15 LEDA 683190 AG? 11 33 11.1610 -32 57 44.830   16.3   16.2 17.2 ~ 21 0
16 ESO 320-14 AG? 11 37 53.24 -39 13 13.2   15.85   15.17 16.0 ~ 48 0
17 ESO 379-7 AG? 11 54 43.49 -33 33 36.0   16.60   15.50 15.3 ~ 61 0
18 ESO 379-24 AG? 12 04 57.1010 -35 44 29.693   16.58   15.92 15.8 ~ 27 0
19 ESO 321-14 AG? 12 13 48.8792 -38 14 00.250 16.32 15.70 15.35 15.20 15.2 ~ 92 0
20 IC 3104 AG? 12 18 46.06 -79 43 33.9   13.65 12.8 12.04   ~ 93 1
21 LEDA 2815819 G 12 44 21.5 -42 56 23   16.7       ~ 15 0
22 ESO 381-18 EmG 12 44 42.39 -35 58 00.2   15.79   14.84 15.1 ~ 59 0
23 MCG-06-28-017 AG? 12 46 00.67 -33 50 13.0   14.24   13.50 14.0 ~ 91 0
24 LEDA 3994669 AG? 12 47 33.1326 -77 34 59.113           ~ 25 0
25 ESO 443-9 AG? 12 54 53.3144 -28 20 21.770   17.01   16.35   ~ 42 0
26 ESO 219-10 G 12 56 09.6 -50 08 38   16.96   15.36   ~ 24 0
27 Z 71-87 H2G 12 58 40.1930636208 +14 13 00.739589628 15.24 15.16 14.98 14.81   ~ 475 0
28 MCG-03-33-027 GiP 13 02 14.39 -17 14 15.1 15.59 14.82 14.34 14.23   ~ 79 0
29 MCG-03-33-030 GiP 13 03 16.736 -17 25 22.91 13.98 13.42 13.09 12.96 13.3 ~ 135 0
30 ESO 269-37 AG? 13 03 33.1398 -46 35 10.765   16.29   14.95   ~ 48 1
31 LEDA 166152 AG? 13 05 02.8154 -40 04 58.706   16.0   16.2 16.0 ~ 64 0
32 NGC 4945 Sy2 13 05 27.279 -49 28 04.44   9.31 14.40 7.55   ~ 1582 2
33 MCG-04-31-038 EmG 13 09 36.60 -27 08 26.7   14.5   16.01 14.7 ~ 27 0
34 ESO 269-58 AG? 13 10 32.8047 -46 59 37.747   12.50   11.31   ~ 76 0
35 LEDA 2815820 G 13 11 14.1 -38 54 22   17.3       ~ 18 0
36 LEDA 166158 G 13 12 45.0 -41 49 55   19.3       ~ 39 0
37 ESO 269-66 GiC 13 13 09.2 -44 53 23   14.14       ~ 64 0
38 NGC 5068 AG? 13 18 54.807 -21 02 20.76 11.24 10.53 10.01 9.78 10.1 ~ 354 0
39 NAME Cen A Group GrG 13 20 33.9 -44 58 51           ~ 274 0
40 LEDA 166163 G 13 21 08.5 -31 31 50   17.4       ~ 59 0
41 LEDA 2815821 G 13 21 32.4 -31 53 11   17.6       ~ 21 0
42 LEDA 46663 AG? 13 21 47.40 -45 03 42.0           ~ 62 0
43 NGC 5102 EmG 13 21 57.6100832352 -36 37 48.395156160   9.74 9.65 8.47 10.2 ~ 389 1
44 LEDA 46680 G 13 22 01.0 -42 32 08   16.6       ~ 63 0
45 LEDA 2815822 G 13 22 12.0 -42 43 51   18.5       ~ 41 0
46 LEDA 166164 G 13 22 56.2 -33 34 22   17.6       ~ 27 0
47 LEDA 46885 GiC 13 24 36.23 -30 58 18.5   16.67   17.33   ~ 61 1
48 NAME Centaurus A BLL 13 25 27.61521044 -43 01 08.8050291   8.18 6.84 6.66   ~ 4774 3
49 IC 4247 EmG 13 26 44.43 -30 21 44.7 15.34 14.67 14.28 14.13 14.53 ~ 99 0
50 LEDA 166167 G 13 27 27.8 -45 21 10           ~ 28 0
51 ESO 324-24 LSB 13 27 37.6117 -41 28 44.128   12.91   12.13 12.3 ~ 107 0
52 LEDA 170257 EmG 13 29 21.0054781440 -21 10 45.111914184   15.51   14.52   ~ 17 0
53 NGC 5206 GiG 13 33 43.9615937880 -48 09 03.953598228   11.62   10.40   ~ 121 0
54 MCG-07-28-004 AG? 13 34 47.30 -45 32 51.0   11.69 11.40 10.03 11.2 ~ 85 0
55 ESO 444-78 GiC 13 36 30.7829 -29 14 10.181   15.49   14.81 15.0 ~ 97 0
56 LEDA 166170 G 13 36 36.0 -29 34 15   14.3       ~ 55 0
57 M 83 SBG 13 37 00.91920 -29 51 56.7400 8.85 8.11 7.52 7.21   ~ 2778 2
58 LEDA 677373 G 13 37 01.0 -33 21 47           ~ 29 0
59 NAME NGC 5236 Group GrG 13 37 06 -29 51.9           ~ 75 0
60 ESO 444-84 GiC 13 37 19.99 -28 02 42.0 16.04 15.34 15.05 15.05 14.9 ~ 133 1
61 LEDA 592761 G 13 37 25.2 -39 53 52   16.1   16.3 16.5 ~ 47 0
62 NGC 5237 EmG 13 37 39.056 -42 50 48.90   13.26 12.67 12.34   ~ 116 1
63 NGC 5253 rG 13 39 55.990 -31 38 24.11 11.48 10.94 10.49 10.33 13.47 ~ 1421 4
64 IC 4316 EmG 13 40 18.41 -28 53 32.0   15.02 15.93 14.15   ~ 89 0
65 NGC 5264 GiG 13 41 36.683 -29 54 47.25 13.86 12.96 12.39 12.14 15.83 ~ 164 1
66 LEDA 2815823 G 13 41 38.1 -42 34 55   18.1       ~ 29 0
67 LEDA 48515 G 13 42 05.7 -45 12 20   17.6       ~ 49 1
68 LEDA 166172 G 13 43 36.0 -43 46 11           ~ 32 1
69 ESO 325-11 AG? 13 45 01.0528 -41 51 45.993   14.02   13.49 12.9 ~ 113 0
70 LEDA 2815824 G 13 46 01.0 -36 19 41   17.1       ~ 27 0
71 LEDA 166175 G 13 46 16.8 -45 41 05   19.2       ~ 37 1
72 LEDA 166176 GiG 13 46 40.0 -29 58 41   19       ~ 26 0
73 ESO 174-1B G 13 47 58.088 -53 20 51.23   14.4   14.2 13.9 ~ 34 1
74 NAME Cen N G 13 48 09.2 -47 33 54           ~ 24 0
75 LEDA 4614882 AG? 13 48 33.9801 -37 58 03.811           ~ 37 0
76 LEDA 166179 G 13 48 46.4 -46 59 46           ~ 36 1
77 MCG-06-30-025 EmG 13 49 17.5109711256 -36 03 48.860478360   11.00   10.11   ~ 120 1
78 LEDA 3097113 G 13 51 18.9 -46 58 25           ~ 36 0
79 LEDA 2807150 LSB 13 54 33.356 +04 14 39.66   16.8 17.1     ~ 89 0
80 ESO 384-16 AG? 13 57 01.37 -35 19 58.7   14.80   14.10 14.81 ~ 62 0
81 NGC 5408 EmG 14 03 20.907 -41 22 39.75   12.59   11.96 12.2 ~ 368 3
82 NAME Circinus Galaxy Sy2 14 13 09.906 -65 20 20.47   10.89 9.84 10.6 10.0 ~ 1331 1
83 Z 133-19 AG? 14 15 57.0834 +23 03 29.871 15.40 14.77 14.41 14.32   ~ 296 0
84 LEDA 51659 G 14 28 03.7 -46 18 06   15       ~ 73 1
85 ESO 222-10 AG? 14 35 02.58 -49 25 14.3   14.8   14.6 14.7 ~ 36 0
86 AM 1436-622 G 14 41 37.0 -62 44 38           ~ 18 0
87 ESO 272-25 AG? 14 43 25.52 -44 42 18.9   14.79   14.00 13.8 ~ 40 0
88 ESO 223-9 AG? 15 01 08.67 -48 17 25.7   12.3   12.5 12.6 ~ 81 0
89 ESO 274-1 G 15 14 13.429 -46 48 33.12   12.00   10.97 11.3 ~ 118 0
90 HIPASS J1526-51 G 15 26 18.0 -51 09 46           ~ 14 0
91 ESO 137-18 GiG 16 20 58.352 -60 29 27.48   12.23   11.03 11.9 ~ 74 0
92 IC 4662 bCG 17 47 09.192 -64 38 19.25   11.75 11.1 10.45   ~ 253 4
93 NAME Tuc Galaxy G 22 41 49.6 -64 25 10   15.7 15.2     ~ 324 0
94 NAME Local Group GrG ~ ~           ~ 9325 0

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