2012AJ....144....4M

Query : 2012AJ....144....4M

2012AJ....144....4M - Astron. J., 144, 4 (2012/July-0)

The observed properties of dwarf galaxies in and around the Local Group.

McCONNACHIE A.W.

Abstract (from CDS):

Positional, structural, and dynamical parameters for all dwarf galaxies in and around the Local Group are presented, and various aspects of our observational understanding of this volume-limited sample are discussed. Over 100 nearby galaxies that have distance estimates reliably placing them within 3 Mpc of the Sun are identified. This distance threshold samples dwarfs in a large range of environments, from the satellite systems of the MW and M31, to the quasi-isolated dwarfs in the outer regions of the Local Group, to the numerous isolated galaxies that are found in its surroundings. It extends to, but does not include, the galaxies associated with the next nearest groups, such as Maffei, Sculptor, and IC 342. Our basic knowledge of this important galactic subset and their resolved stellar populations will continue to improve dramatically over the coming years with existing and future observational capabilities, and they will continue to provide the most detailed information available on numerous aspects of dwarf galaxy formation and evolution. Basic observational parameters, such as distances, velocities, magnitudes, mean metallicities, as well as structural and dynamical characteristics, are collated, homogenized (as far as possible), and presented in tables that will be continually updated to provide a convenient and current online resource. As well as discussing the provenance of the tabulated values and possible uncertainties affecting their usage, the membership and spatial extent of the MW sub-group, M31 sub-group, and the Local Group are explored. The morphological diversity of the entire sample and notable sub-groups is discussed, and timescales are derived for the Local Group members in the context of their orbital/interaction histories. The scaling relations and mean stellar metallicity trends defined by the dwarfs are presented, and the origin of a possible "floor" in central surface brightness (and, more speculatively, stellar mean metallicity) at faint magnitudes is considered.

Abstract Copyright: ∼

Journal keyword(s): catalogs - galaxies: dwarf - galaxies: fundamental parameters - galaxies: general - galaxies: structure - Local Group

VizieR on-line data: <Available at CDS (J/AJ/144/4): table1.dat table2.dat table3.dat table4.dat table5.dat refs.dat>

Simbad objects: 119

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Number of rows : 119
N Identifier Otype ICRS (J2000)
RA 		ICRS (J2000)
DEC 		Mag U Mag B Mag V Mag R Mag I Sp type #ref
1850 - 2024 		#notes
1 NAME Wolf-Lundmark-Melotte G 00 01 57.9 -15 27 50   11.50 11.10 10.93   ~ 691 2
2 NAME Andromeda XVIII G 00 02 14.5 +45 05 20     16.0     ~ 117 0
3 NAME Andromeda XX G 00 07 30.70 +35 07 56.4     18.2     ~ 73 0
4 NGC 55 GiG 00 14 53.602 -39 11 47.86 8.54 8.58 7.87 7.84   ~ 778 2
5 ESO 410-5 LSB 00 15 31.21 -32 10 49.9   15.32 14.9 14.58   ~ 112 1
6 And XIX G 00 19 32.10 +35 02 37.1     15.6     ~ 152 0
7 IC 10 G 00 20 25.50 +59 17 17.0   13.6 9.5     ~ 1118 1
8 NAME Andromeda XXVI G 00 23 45.6 +47 54 58     17.3     ~ 71 0
9 NAME Cetus Dwarf Galaxy G 00 26 10.8 -11 03 14     13.2     ~ 234 0
10 ESO 294-10 AG? 00 26 33.37 -41 51 19.1   15.76 15.3 14.97   ~ 111 2
11 NAME Andromeda XXV G 00 30 08.9 +46 51 07     14.8     ~ 113 0
12 NAME Magellanic Stream HVC 00 32 -30.0           ~ 971 1
13 NGC 147 GiG 00 33 12.120 +48 30 31.46   12.0 9.5     ~ 687 1
14 NAME Andromeda III G 00 35 33.8 +36 29 52     14.4     ~ 295 0
15 NAME Andromeda XVII G 00 37 07.0 +44 19 20     15.8     ~ 96 0
16 NAME Andromeda XXVII G 00 37 27.1 +45 23 13     16.7     ~ 75 0
17 NGC 185 Sy2 00 38 57.9400026024 +48 20 15.035874648   9.10 9.2     ~ 800 1
18 M 110 GiG 00 40 22.0572349992 +41 41 07.507220136   8.92 8.07     ~ 1308 1
19 M 32 GiG 00 42 41.82480 +40 51 54.6120 9.51 9.03 8.08     ~ 2154 2
20 M 31 AGN 00 42 44.330 +41 16 07.50 4.86 4.36 3.44     ~ 12645 1
21 NAME Andromeda I G 00 45 39.8 +38 02 28   13.9 12.7     ~ 342 0
22 NAME Andromeda XI G 00 46 20.0 +33 48 05     17.5     ~ 122 0
23 NAME Andromeda XII G 00 47 27.0 +34 22 29     18.3     ~ 118 0
24 NAME M31 Group GrG 00 47 28.6 +40 17 23           ~ 63 0
25 NAME Andromeda XIV G 00 51 35.0 +29 41 49     15.9     ~ 125 0
26 NAME Andromeda XIII G 00 51 51.0 +33 00 16     18.1     ~ 122 0
27 NAME SMC G 00 52 38.0 -72 48 01   2.79 2.2     ~ 11145 1
28 NAME Andromeda IX G 00 52 53.0 +43 11 45     16.3     ~ 168 1
29 NGC 300 GiG 00 54 53.4465638304 -37 41 03.168402396 8.83 8.69 8.13 7.46   ~ 1502 2
30 NAME Pisces V G 00 59 29.8 +32 22 36     14.4     ~ 135 0
31 NAME Scl Group GrG 01 00 06 -33 44.2           ~ 509 0
32 NAME Sculptor Dwarf Galaxy G 01 00 09.4 -33 42 32   9.79 8.6 8.81   ~ 1359 4
33 NAME Pisces I G 01 03 56.6 +21 53 41   16.18 14.3     ~ 387 0
34 IC 1613 GiC 01 04 48.4071 +02 07 10.185   10.42 10.01 9.77   ~ 1235 2
35 NAME Andromeda X G 01 06 33.70 +44 48 15.8     16.6     ~ 118 1
36 NAME Andromeda V G 01 10 17.1 +47 37 41     15.3     ~ 207 0
37 NAME Andromeda XV G 01 14 18.7 +38 07 03     14.6     ~ 112 0
38 NAME Andromeda II G 01 16 29.8 +33 25 09     11.7     ~ 378 0
39 NAME Andromeda XXIV G 01 18 30.0 +46 21 58     16.3     ~ 62 0
40 NAME Andromeda XXII G 01 27 40.0 +28 05 25     18.0     ~ 85 0
41 NAME Andromeda XXIII G 01 29 21.8 +38 43 08     14.2     ~ 83 0
42 M 33 GiG 01 33 50.8965749232 +30 39 36.630403128 6.17 6.27 5.72     ~ 5838 1
43 NAME Phoenix Dwarf Galaxy Sy1 01 51 06.3 -44 26 41   13.48 13.2 12.69   ~ 533 2
44 NAME Segue 2 G 02 19 16.0 +20 10 31     15.2     ~ 262 0
45 NAME Sagittarius Stream St* 02 22 +00.0           ~ 874 0
46 NAME Fornax Dwarf Spheroidal G 02 39 59.3 -34 26 57   9.02 7.4     ~ 1742 1
47 NAME Cas 2 GiG 02 56 51.6359356200 +58 54 42.136879608           ~ 82 0
48 NAME Magellanic Clouds GrG 03 00 -71.0           ~ 7063 0
49 IC 342 SBG 03 46 48.514 +68 05 45.98   10.5       ~ 1517 1
50 NAME Maffei Group GrG 03 49 +68.0           ~ 49 0
51 UGCA 86 AG? 03 59 48.30 +67 08 18.6   14.2 14.2     ~ 104 0
52 UGCA 92 AG? 04 32 03.8366 +63 36 51.243   16.15       ~ 125 0
53 NAME LMC G 05 23 34.6 -69 45 22     0.4     ~ 17429 0
54 NAME Carina dSph G 06 41 36.7 -50 57 58   22.14 11.0 19.47   ~ 1125 0
55 LEDA 2807061 G 07 00 29.3 -04 12 30           ~ 41 1
56 NAME CMa Dwarf Galaxy G 07 12.6 -27 40     -0.1     ~ 199 1
57 NAME UMa II Galaxy G 08 51 30.0 +63 07 48     13.3     ~ 374 0
58 UGC 4879 AG? 09 16 02.0195908968 +52 50 42.051257412   14.0 13.2     ~ 127 0
59 NAME Leo T G 09 34 53.4 +17 03 05     15.1     ~ 391 0
60 M 81 Sy2 09 55 33.1726556496 +69 03 55.062505368   7.89 6.94     ~ 4448 3
61 NAME Leo A G 09 59 26.46 +30 44 47.0 14.08 13.54 13.26 13.33   ~ 615 0
62 NAME Sextans B H2G 10 00 00.8217342072 +05 20 09.533389560 12.77 12.25 11.89 11.71   ~ 528 0
63 NGC 3109 AG? 10 03 06.877 -26 09 34.46 11.10 10.42 10.04 9.91   ~ 769 2
64 NAME Antlia Dwarf Galaxy G 10 04 03.9 -27 20 01 16.73 15.69 15.17 15.00   ~ 212 1
65 NAME Segue 1 G 10 07 03.2 +16 04 25     15.3     ~ 465 1
66 Z 64-73 G 10 08 28.12 +12 18 23.4   11.3 10.0     ~ 1208 1
67 NAME Sex A H2G 10 11 00.5 -04 41 30 12.48 12.13 11.93 11.78   ~ 727 2
68 NAME Sextans dSph G 10 13 02.9 -01 36 53   12 10.4     ~ 854 0
69 NAME UMa I Galaxy G 10 34 52.80 +51 55 12.0     14.4     ~ 328 1
70 NAME Willman 1 G 10 49 21.0 +51 03 00     15.2     ~ 320 0
71 NAME UMa Region reg 11 00 +50.0           ~ 327 0
72 Z 126-111 G 11 13 28.13 +22 09 10.1   12.9 12.0     ~ 840 0
73 NAME Leo V G 11 31 09.60 +02 13 12.0     16.0     ~ 203 0
74 NAME Leo IV Dwarf Galaxy G 11 32 57.0 -00 32 00     15.1     ~ 383 1
75 NGC 3913 AG? 11 50 38.9407040280 +55 21 13.894641396   14.2       ~ 159 0
76 UGC 6817 AG? 11 50 52.984 +38 52 50.92   13.72 13.9 13.39   ~ 166 0
77 NGC 4163 LSB 12 12 09.34 +36 10 08.1 14.33 13.70 13.2 12.98   ~ 222 0
78 UGCA 276 G 12 14 57.9 +36 13 07 17.66 16.85 16.22 15.92   ~ 100 1
79 IC 3104 AG? 12 18 46.06 -79 43 33.9   13.65 12.8 12.04   ~ 85 1
80 Cl Melotte 111 OpC 12 24 03.4 +25 39 07           ~ 480 0
81 NAME Virgo Cluster ClG 12 26 32.1 +12 43 24           ~ 6643 0
82 UGC 7577 GiG 12 27 40.90 +43 29 44.0 13.75 13.10 12.7 12.33   ~ 255 0
83 NAME CVn I Group GrG 12 32 48.3 +33 57 07           ~ 142 0
84 NAME CVn II dSph G 12 57 09.6 +34 19 12     16.1     ~ 263 2
85 UGC 8091 H2G 12 58 40.1930636208 +14 13 00.739589628 15.24 15.16 14.98 14.81   ~ 463 0
86 NAME Centaurus A Sy2 13 25 27.61521044 -43 01 08.8050291   8.18 6.84 6.66   ~ 4484 3
87 NAME CVn I dSph G 13 28 03.5 +33 33 21     13.1     ~ 326 1
88 UGC 8508 AG? 13 30 44.8682655624 +54 54 38.522749824 14.72 14.25 13.90 13.75   ~ 195 0
89 LEDA 2807150 LSB 13 54 33.356 +04 14 39.66   16.8 17.1     ~ 84 0
90 NAME Bootes III G 13 57 07.4 +26 46 30     12.6     ~ 96 1
91 NAME Bootes II G 13 58 00.0 +12 51 00     15.4     ~ 241 0
92 NAME Bootes Dwarf Spheroidal Galaxy G 14 00 00.0 +14 30 00     12.8     ~ 437 0
93 LEDA 166185 G 14 07 10.1 +35 03 37   16.9 17.2     ~ 90 0
94 UGC 9128 AG? 14 15 57.0834 +23 03 29.871 15.40 14.77 14.41 14.32   ~ 283 0
95 UGC 9240 AG? 14 24 43.21 +44 31 41.8 14.24 13.54 13.17 13.07   ~ 200 0
96 NAME UMi Galaxy G 15 09 08.0 +67 13 21   13.60 10.6     ~ 1359 0
97 LEDA 2801026 LSB 16 13 47.504 +54 22 08.25     15.9     ~ 108 0
98 NAME Hercules Dwarf Galaxy G 16 31 02.0 +12 47 30     14.0     ~ 345 1
99 NAME Dra dSph G 17 20 14.335 +57 55 16.39   12.40 10.6     ~ 1331 1
100 NAME Galactic Center reg 17 45 39.60213 -29 00 22.0000           ~ 14410 0
101 NAME Sgr A* X 17 45 40.03599 -29 00 28.1699           ~ 4388 3
102 IC 4662 bCG 17 47 09.192 -64 38 19.25   11.75 11.1 10.45   ~ 235 4
103 NAME SDG G 18 55 19.0 -30 32 43   4.5 3.6     ~ 2187 2
104 NAME Sgr dIG G 19 29 59.0 -17 40 41   15.5 13.6     ~ 307 1
105 NGC 6822 G 19 44 56.199 -14 47 51.29   18 8.1     ~ 1562 0
106 NAME Aquarius Dwarf G 20 46 51.7 -12 50 54 15.75 15.18 14.83 14.46   ~ 445 1
107 IC 5152 AG? 22 02 41.521 -51 17 47.20   11.03 10.9 10.19   ~ 252 1
108 NAME Andromeda XXVIII G 22 32 41.20 +31 12 58.2     15.6     ~ 79 0
109 NAME Tuc Galaxy G 22 41 49.6 -64 25 10   15.7 15.2     ~ 300 0
110 NAME Pisces II G 22 58 31.0 +05 57 09     16.3     ~ 258 0
111 ESO 407-18 G 23 26 27.52 -32 23 19.5 15.34 14.71 14.23 14.03   ~ 155 0
112 NAME Andromeda VII GiG 23 26 31.7 +50 40 33   13.6 11.8     ~ 210 1
113 NAME PegDIG G 23 28 35.2 +14 44 35 13.85 13.16 12.52     ~ 474 1
114 LEDA 2807157 GiG 23 45 35.177 +38 43 05.09   16.7 15.2     ~ 89 1
115 NAME Peg dSph GiG 23 51 46.4 +24 35 11   14.5 13.2     ~ 236 2
116 NAME Andromeda XXI G 23 54 47.7 +42 28 15     14.8     ~ 108 0
117 NAME Andromeda XXIX G 23 58 55.6 +30 45 20     16.0     ~ 58 0
118 NAME MW Group GrG ~ ~           ~ 18 0
119 NAME Local Group GrG ~ ~           ~ 8389 0

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