2007AJ....133.2393M

Query : 2007AJ....133.2393M

2007AJ....133.2393M - Astron. J., 133, 2393-2417 (2007/May-0)

A survey of Local Group galaxies currently forming stars. II. UBVRI photometry of stars in seven dwarfs and a comparison of the entire sample.

MASSEY P., OLSEN K.A.G., HODGE P.W., JACOBY G.H., McNEILL R.T., SMITH R.C. and STRONG S.B.

Abstract (from CDS):

We have obtained UBVRI images with the Kitt Peak National Observatory and Cerro Tololo Inter-American Observatory 4 m telescopes and Mosaic cameras of seven dwarfs in (or near) the Local Group, all of which have known evidence of recent star formation: IC 10, NGC 6822, WLM, Sextans B, Sextans A, Pegasus, and Phoenix. We construct color-magnitude diagrams (CMDs) of these systems, as well as neighboring regions that can be used to evaluate the degree of foreground contamination by stars in the Milky Way. Intercomparison of these CMDs with those of M31, M33, the LMC, and the SMC permits us to determine improved reddening values for a typical OB star found within these galaxies. All of the CMDs reveal a strong or modest number of blue supergiants. All but Pegasus and Phoenix also show the clear presence of red supergiants in the CMD, although IC 10 appears to be deficient in these objects given its large Wolf-Rayet star population. The bright stars of intermediate color in the CMD are badly contaminated by foreground stars (30%-100%), and considerable spectroscopy is needed before statistics on the yellow supergiants in these systems will be known. This study is intended to serve as both the impetus and ``finding charts'' for further space-based imaging and for many spectroscopic programs at large aperture.

Abstract Copyright: ∼

Journal keyword(s): Catalogs - Galaxies: Stellar Content - Stars: Early-Type - Stars: Supergiants - Surveys

VizieR on-line data: <Available at CDS (J/AJ/133/2393): tables 5 to 20, refs.dat>

Nomenclature: Tables 5-13: LGGS JHHMMSS.ss+DDMMSS.s N=606547.

Errata: erratum vol. 141, a. 28 (2011)

CDS comments: Spectroscopically confirmed members (tables 18 to 20) are ingested in SIMBAD. The whole photometric catalogue (tables 5 to 13, 606547 objects) will not be ingested, but is available in VizieR.

Simbad objects: 128

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Number of rows : 128
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 [BPU2006] B 10 * 00 01 53.21 -15 27 29.2 17.97 18.86 19.01 19.06 19.16 B2 4 0
2 [SC85b] 22 s*b 00 01 53.2276995269 -15 28 40.091651644 17.30 17.97 17.97 17.94 17.93 B9Ia 5 0
3 LGGS J000153.33-152851.9 * 00 01 53.35 -15 28 52.2 18.94 19.69 19.88 19.95 20.05 B2.5 4 0
4 LGGS J000153.63-152829.8 HS? 00 01 53.6441625576 -15 28 30.364446432 17.87 18.72 18.87 18.92 19.02 B1 5 0
5 [SC85b] 26 s*b 00 01 54.0722188054 -15 27 45.999005016 18.28 19.15 19.32 19.37 19.46 B0Iab 5 0
6 LGGS J000155.03-152659.7 * 00 01 55.04 -15 26 59.9 18.79 19.45 19.55 19.57 19.64 B3 3 0
7 [BPU2006] B 3 * 00 01 55.69 -15 24 48.8 19.78 20.37 20.48 20.47 20.53 B5 4 0
8 [SC85b] 51 sg* 00 01 56.1613482211 -15 26 24.976814522 20.02 20.01 19.79 19.61 19.41 A7Ib 5 0
9 LGGS J000156.34-152758.3 * 00 01 56.35 -15 27 58.4 19.26 19.75 19.75 19.69 19.61 A0Iab 2 0
10 LGGS J000156.36-152606.7 * 00 01 56.37 -15 26 06.5 19.98 20.06 19.97 19.88 19.74 A2 4 0
11 LGGS J000156.45-152901.6 * 00 01 56.46 -15 29 01.7 19.47 19.86 19.98 19.89 19.88 A0Ib 2 0
12 LGGS J000156.62-152501.5 * 00 01 56.63 -15 25 01.2 22.13 22.18 21.05 20.47 19.93 G0I 3 0
13 [BPU2006] B 8 Em* 00 01 56.7544440048 -15 26 37.056796872 20.03 20.38 20.24 20.12 20.02 A3II 3 0
14 LGGS J000157.17-152614.3 * 00 01 57.17 -15 26 14.3 20.43 20.45 20.32 20.16 19.99 A3II 2 0
15 [SC85b] 35 s*b 00 01 57.2076419877 -15 27 18.495823439 17.34 18.59 18.39 18.42 18.48 B1.5Ia 7 0
16 MCG-03-01-015 G 00 01 57.9 -15 27 50   11.50 11.10 10.93   ~ 782 2
17 [SC85b] 10 sg* 00 01 57.9023655181 -15 30 13.707512092 17.85 18.58 18.38 18.32 18.27 A2Ia 5 0
18 LGGS J000158.12-152648.5 * 00 01 58.12 -15 26 48.6 18.60 19.57 19.66 19.71 19.82 B1.5 5 0
19 LGGS J000158.46-152433.8 * 00 01 58.46 -15 24 33.5   22.44 20.89 20.05 19.30 G5I 3 0
20 LGGS J000158.73-153001.5 * 00 01 58.75 -15 30 01.7 19.69 20.01 20.03 19.98 19.94 ~ 3 0
21 [SC85b] 68 * 00 01 59.0482667358 -15 24 43.153009037 19.90 20.13 20.14 20.09 20.06 A0II 4 0
22 LGGS J000159.41-153046.7 * 00 01 59.44 -15 30 46.9 20.15 21.08 21.23 21.03 20.95 ~ 2 0
23 [SC85b] 15 * 00 01 59.5754468276 -15 29 26.679003246 18.30 18.46 18.37 18.3 18.18 A2II 7 0
24 [SC85b] 4 s*r 00 01 59.6284627968 -15 31 00.488858520 22.31 20.20 18.97 18.07 17.25 K2-3I 8 0
25 LGGS J000159.88-152528.3 * 00 01 59.89 -15 25 28.0 21.14 21.15 20.83 20.67 20.48 A5II 2 0
26 [SC85b] 30 s*b 00 01 59.9545854456 -15 28 19.576536780 17.23 18.27 18.38 18.45 18.57 O9.7Ia 13 0
27 LGGS J000200.02-152545.0 * 00 02 00.03 -15 25 44.8 20.45 20.82 20.80 20.83 20.87 A0II 2 0
28 LGGS J000200.03-152930.9 * 00 02 00.05 -15 29 31.1 20.47 20.46 20.32 20.11 19.92 A5II 2 0
29 [BPU2006] B 17 * 00 02 00.21 -15 30 14.2 19.64 20.16 20.27 20.13 20.09 ~ 2 0
30 LGGS J000200.48-153108.1 * 00 02 00.50 -15 31 08.4 18.85 19.58 19.73 19.83 19.92 B2Ib 2 0
31 LGGS J000200.52-152951.8 * 00 02 00.53 -15 29 52.1 18.99 19.97 20.25 20.37 20.52 O7V(f) 8 0
32 [SC85b] 31 s*b 00 02 00.6377777924 -15 28 30.393705171 18.72 18.84 18.76 18.67 18.06 A5Ib 5 0
33 [SC85b] 9 s*b 00 02 00.8313303957 -15 30 25.311865020 18.61 19.20 19.31 19.34 18.89 B5Ib 4 0
34 [SC85b] 6 s*r 00 02 00.8368265016 -15 31 16.255453476 21.24 20.30 18.69 17.78 17.44 K0-1I 8 0
35 PSO J000.5066-15.4242 * 00 02 01.5874577814 -15 25 27.421650877 20.03 20.20 20.22 20.14 20.08 A2II 3 0
36 LGGS J000201.91-152725.2 * 00 02 01.93 -15 27 25.3 19.52 19.78 19.77 19.73 19.66 A0 3 0
37 [SC85b] 45 s*b 00 02 03.3202597522 -15 25 53.007129936 18.71 19.29 19.41 19.43 19.51 B8Iab 5 0
38 LGGS J000204.38-152446.5 * 00 02 04.38 -15 24 46.3 19.94 20.41 20.38 20.53 20.57 A2Ia 2 0
39 [BPU2006] B 1 * 00 02 05.16 -15 24 22.7 21.15 21.10 21.00 20.79 20.63 A2II 2 0
40 LGGS J001956.99+591707.5 WR* 00 19 56.99 +59 17 07.5 21.74 22.11 21.47 21.05 20.71 WC4.5 8 0
41 LGGS J001959.63+591654.7 * 00 19 59.63 +59 16 54.7 21.54 21.83 21.02 20.49 19.96 ~ 1 0
42 LGGS J001959.69+591654.9 * 00 19 59.69 +59 16 54.9 21.07 23.17 21.58 20.54 19.98 ~ 1 0
43 [MAC92] 2 WR* 00 19 59.72 +59 16 55.2           WC4 9 0
44 RSMV 6 WR* 00 20 03.01 +59 18 27.0   23.28 22.20 21.38 20.59 WC4 6 0
45 RSMV 5 WR* 00 20 04.32 +59 18 06.5 22.25 22.52 21.66 21.1 20.53 WC4.5 4 0
46 LGGS J002011.55+591857.9 WR* 00 20 11.55 +59 18 57.9 19.92 20.31 19.62 19.12 18.61 WC4.5 8 0
47 LGGS J002012.84+592008.1 WR* 00 20 12.84 +59 20 08.1 22.24 22.54 21.59 21.15 21.26 WNe 8 0
48 RSMV 13 WR* 00 20 15.70 +59 17 22.1           WN5 5 0
49 IC 10 rG 00 20 17.33520 +59 18 13.6480   13.6 9.5     ~ 1185 1
50 LGGS J002020.31+591839.5 * 00 20 20.31 +59 18 39.5 21.86 21.97 21.54 20.84 20.15 ~ 1 0
51 LGGS J002020.34+591840.1 * 00 20 20.34 +59 18 40.1 21.89 21.85 22.19 20.88 20.16 ~ 1 0
52 RSMV 9 WR* 00 20 20.41 +59 18 40.1           WNE 5 0
53 RSMV 8 WR* 00 20 20.56 +59 18 37.3 20.38 20.92 20.24 19.63 19.18 WN10 6 0
54 [MAC92] 7 WR* 00 20 21.8561110224 +59 17 40.979965524 19.13 19.76 19.09 18.64 18.19 WC4/5 13 0
55 LGGS J002021.97+591741.2 * 00 20 21.97 +59 17 41.2 21.45 20.99 20.79 20.3 20.16 ~ 2 0
56 LGGS J002022.68+591846.8 WR* 00 20 22.68 +59 18 46.8   23.45 23.22 22.66   WN3 8 0
57 RSMV 11 WR* 00 20 22.82 +59 17 53.9   23.96 22.8 22.15 20.92 WC4 6 0
58 LGGS J002023.35+591742.2 WR* 00 20 23.35 +59 17 42.2 21.25 20.93 20.52 20.04 19.94 WC7 12 0
59 RSMV 12 WR* 00 20 25.77 +59 16 48.9   23.53 22.7 21.93 21.31 WNE 9 0
60 LGGS J002026.20+591726.3 WR* 00 20 26.18 +59 17 26.3 21.77 22.23 21.15 20.19 18.85 WC4 11 0
61 RSMV 10 WR* 00 20 26.63 +59 17 05.6   23.21 22.63 21.74 22.22 WC4 10 0
62 LGGS J002026.69+591732.8 mul 00 20 26.69 +59 17 32.8 20.95 21.43 20.89 20.34 19.72 WC? 10 0
63 LGGS J002026.94+591719.9 mul 00 20 26.94 +59 17 19.9 21.18 21.19 20.61 19.97 19.07 WC? 9 0
64 LGGS J002027.02+591818.0 WR* 00 20 27.02 +59 18 18.0   22.95 22.27 21.69 21.14 ~ 9 0
65 [MAC92] 24 mul 00 20 27.73 +59 17 37.2           WN 12 0
66 LGGS J002027.73+591737.3 * 00 20 27.73 +59 17 37.3 19.01 19.12 18.56 18.19 17.85 ~ 1 0
67 LGGS J002027.75+591738.1 * 00 20 27.75 +59 17 38.1 18.98 19.20 18.62 18.15 17.77 ~ 1 0
68 RSMV 2 WR* 00 20 28.0451666928 +59 17 14.194661604 22.06 22.32 21.54 20.84 20.13 WN7/8 10 0
69 LGGS J002029.08+591651.7 * 00 20 29.08 +59 16 51.7 21.54 22.63 21.72 21.58 20.83 ~ 2 0
70 LGGS J002029.12+591651.8 * 00 20 29.12 +59 16 51.8 21.58 22.50 22.48 21.63 20.82 ~ 2 0
71 [MAC92] 17 mul 00 20 29.15 +59 16 52.2     21.76     WNE+OB 14 0
72 LGGS J002031.05+591904.2 mul 00 20 31.05 +59 19 04.2   22.94 22.60 22.04 21.70 WN? 7 0
73 LGGS J002032.80+591716.4 WR* 00 20 32.79 +59 17 16.4   22.82 21.38 20.09 18.67 WN7 9 0
74 LGGS J002034.52+591714.6 WR* 00 20 34.52 +59 17 14.6 22.88 22.59 22.17 21.58 21.09 WC5 10 0
75 LGGS J002041.61+591624.8 WR* 00 20 41.61 +59 16 24.8   23.11 22.75 22.19 21.73 WN4 8 0
76 M 31 AGN 00 42 44.330 +41 16 07.50 4.86 4.36 3.44     ~ 13622 1
77 NAME SMC G 00 52 38.0 -72 48 01   2.79 2.2     ~ 12317 1
78 IC 1613 GiC 01 04 48.4071 +02 07 10.185   10.42 10.01 9.77   ~ 1316 2
79 M 33 GiG 01 33 50.8965749232 +30 39 36.630403128 6.17 6.27 5.72     ~ 6226 1
80 NAME Phoenix Dwarf Galaxy Sy1 01 51 06.3 -44 26 41   13.48 13.2 12.69   ~ 575 2
81 NAME LMC G 05 23 34.6 -69 45 22     0.4     ~ 19090 0
82 Z 36-12 H2G 10 00 00.8217342072 +05 20 09.533389560 12.77 12.25 11.89 11.71   ~ 569 0
83 PSO J152.7368-04.6780 * 10 10 56.8469000159 -04 40 40.894073108     20.410     ~ 3 0
84 [VPW98] 1805 * 10 10 57.89 -04 43 10.2 19.435 20.640 20.917 20.995 21.191 O6Vz 7 0
85 MCG-01-26-030 H2G 10 11 00.5 -04 41 30 12.48 12.13 11.93 11.78   ~ 789 2
86 LGGS J101104.79-044220.9 * 10 11 04.7898910627 -04 42 20.959937026     20.598     ~ 3 0
87 [M98a] NGC 6822a-96 * 19 44 22.38 -14 43 41.9 20.35 18.84 17.33 16.39   ~ 2 0
88 [AM85] NGC 6822 3 EB* 19 44 31.9748114090 -14 44 09.333863913 18.75 19.51 19.69 19.41 19.25 ~ 4 0
89 [MAP95] NGC 6822 OB3 7 * 19 44 34.235 -14 42 19.25 17.06 18.15 17.75 17.68 17.66 ~ 4 0
90 [AM85] NGC 6822 4 Pe* 19 44 37.9602359640 -14 51 06.805347624 19.08 19.84 19.83 19.71 19.61 ~ 5 0
91 CW Red 25 s?r 19 44 48.0942140664 -14 45 18.468320616 22.59 20.51 18.48 17.41 16.44 ~ 5 0
92 LGGS J194448.65-145025.9 * 19 44 48.705 -14 50 25.66 19.87 19.71 18.85 18.3 17.77 ~ 3 0
93 CW Blue 149 EB* 19 44 49.0110849792 -14 45 27.233031636 16.92 17.66 17.54 17.43 17.35 B 7 0
94 CW Blue 94 EB* 19 44 49.2932489264 -14 44 04.388860251 17.50 18.29 18.20 18.07 17.91 O9II 5 0
95 [AM85] NGC 6822 5 Pe* 19 44 49.3469054374 -14 45 40.269525419 19.37 20.00 19.72 19.43 19.03 ~ 5 0
96 CW Red 7 s*r 19 44 49.9463219064 -14 43 33.874256100 22.37 20.28 18.07 16.78   K5I 7 0
97 [MAP95] NGC 6822 OB8 2 * 19 44 50.258 -14 42 53.45 16.45 17.16 16.93 16.78 16.64 B5/8I 5 0
98 [H25] V12 Mi* 19 44 51.0896621160 -14 43 55.792857576 22.28   17.57 17.41 15.77 M4I 18 0
99 [K67] A66 s*b 19 44 51.221 -14 49 19.44 17.29 17.73 17.50 17.3 17.13 B0/1Ia 5 0
100 CW Red 18 * 19 44 51.580 -14 44 29.33 21.88 20.57 18.70 17.67 16.73 ~ 4 0
101 [K67] C26 V* 19 44 51.76 -14 43 51.6 19.88 19.73 17.40 16.57   ~ 5 0
102 [K67] C74 s?b 19 44 52.332 -14 52 20.61 16.65 16.81 16.45 16.25 16.04 B1I 4 0
103 [K67] A13 sg* 19 44 53.2410066888 -14 46 40.600598952 17.36 17.71 17.39 17.18 16.92 A3Ia 7 0
104 LGGS J194453.88-145146.6 Sy* 19 44 53.88 -14 51 46.6 22.64 22.82 21.620     ~ 6 0
105 CW Red 17 s*r 19 44 53.9514545352 -14 44 24.743092308 22.14 20.20 18.19 17.15   K5I 6 0
106 [K67] C79 s*r 19 44 54.5381084952 -14 51 27.682568316 21.45 19.30 16.70 15.86   M0I 12 0
107 [H25] V14 s?r 19 44 54.8076352464 -14 43 48.151173072 19.99 20.29 19.20 16.77 15.47 M4I 13 0
108 [K67] C84 * 19 44 55.0733880879 -14 52 13.662927672 16.71 16.69 15.99 15.72   ~ 4 0
109 LGGS J194455.27-144631.6 * 19 44 55.27 -14 46 31.6 18.76 19.15 18.96 18.66 18.33 ~ 2 0
110 [K67] A73 s*b 19 44 55.526 -14 49 29.64 17.71 17.99 17.72 17.52 17.29 B9Ia 4 0
111 [K67] V18 s*r 19 44 55.7030105832 -14 51 55.982495700 21.10 19.11 16.91 15.74   M0I 11 0
112 LGGS J194456.19-144503.0 * 19 44 56.1857026680 -14 45 03.338921664 16.30 17.03 16.68 16.5 16.34 OB 4 0
113 NGC 6822 G 19 44 56.199 -14 47 51.29   18 8.1     ~ 1661 0
114 [K67] A101 sg* 19 44 56.32 -14 46 12.1 16.98 18.02 17.22 17.03 16.81 A2Ia 5 0
115 [K67] V19 s*r 19 44 57.3122956968 -14 49 20.594970300   19.69 17.41 16.20   M1I 14 0
116 [MAP95] NGC 6822 OB9 20A * 19 44 57.483 -14 43 44.90 18.65 19.38 19.43 19.43 19.45 ~ 4 0
117 [H25] V15 LP* 19 44 58.3108149840 -14 44 47.302169856 21.34 20.00 19.14 16.71 15.56 ~ 13 0
118 [K67] A165 * 19 44 59.829 -14 48 57.24 17.64 18.00 17.94 17.84 17.77 B5I 3 0
119 [K67] B110 s*r 19 44 59.8544243448 -14 45 15.766834788 20.74 18.93 16.93 15.93   M1I 8 0
120 CW Blue 115 s*b 19 45 00.41 -14 44 34.6 17.86 18.52 18.46 18.37 18.31 B2Ia 3 0
121 [K67] A153 s*b 19 45 00.467 -14 48 22.72 17.24 17.66 17.35 17.01 16.54 B5I 4 0
122 [K67] E141 * 19 45 01.5992015616 -14 54 40.419878184 16.57 17.16 16.88 16.69 16.48 ~ 2 0
123 [M98a] NGC 6822c-108 * 19 45 02.03 -14 47 31.8 19.13 18.56 17.55 16.94 16.37 ~ 2 0
124 LGGS J194505.25-144312.4 * 19 45 05.25 -14 43 12.4 17.59 18.50 18.20 18.43 18.88 O 3 0
125 LGGS J194513.26-144508.0 * 19 45 13.26 -14 45 08.0 17.24 17.93 18.02 18.01 18.08 B 3 0
126 [AM85] NGC 6822 12 Pe* 19 45 13.4874419770 -14 45 13.280189277 18.25 18.79 18.96 18.8 18.76 ~ 5 0
127 Z 431-72 G 23 28 35.2 +14 44 35 13.85 13.16 12.52     ~ 499 1
128 NAME Local Group GrG ~ ~           ~ 9325 0

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