2007A&A...474...35B

Query : 2007A&A...474...35B

2007A&A...474...35B - Astronomy and Astrophysics, volume 47435-41 (2007/10-4)

The assessment of the near infrared identification of carbon stars. I. The Local Group galaxies WLM, IC 10 and NGC 6822.

BATTINELLI P., DEMERS S. and MANNUCCI F.

Abstract (from CDS):

The selection of AGB C and M stars from NIR colours has been done in recent years using adjustable criteria that are in needs of standardization if one wants to compare, in a coherent manner, properties of various populations. We intend to assess the NIR colour technique to identify C and M stars. We compare the NIR colours of several C stars previously identified from spectroscopy or narrow band techniques in WLM, IC 10 and NGC 6822. We demonstrate that very few M stars have (J-K)0>1.4 but a non negligible number of C stars are bluer than this limit. Thus, counts of M and C stars based on such limit do not produce pure samples. C/M ratios determined from NIR colours must be regarded as underestimates mainly because the M numbers include many warm C stars and also K stars if no blue limit is considered.

Abstract Copyright: ∼

Journal keyword(s): galaxies: individual: IC 10 - galaxies: individual: WLM - galaxies: individual: NGC 6822 - stars: carbon - stars: AGB and post-AGB - galaxies: dwarf

VizieR on-line data: <Available at CDS (J/A+A/474/35): table2.dat table3.dat>

CDS comments: Stars in WLM (table 2) are [BD2004a] NNN in Simbad, stars in IC 10 (table 3) [DBL2004] NNN.

Simbad objects: 123

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Number of rows : 123
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 [BD2004a] 23 C* 00 01 54.06 -15 29 11.1       21.637 20.404 ~ 2 0
2 [BD2004a] 24 C* 00 01 54.49 -15 27 17.4       21.674 20.142 ~ 2 0
3 [BD2004a] 26 C* 00 01 54.62 -15 27 54.1       21.286 20.260 ~ 2 0
4 [BD2004a] 29 C* 00 01 54.87 -15 28 16.7       21.313 20.230 ~ 2 0
5 [BD2004a] 31 C* 00 01 55.61 -15 26 47.7       21.11 20.145 ~ 2 0
6 [BD2004a] 38 C* 00 01 55.78 -15 27 01.8       21.209 20.238 ~ 2 0
7 [BD2004a] 41 C* 00 01 56.03 -15 26 44.0       21.174 19.956 ~ 2 0
8 [BD2004a] 43 C* 00 01 56.16 -15 29 05.3       20.926 19.995 ~ 2 0
9 [BD2004a] 44 C* 00 01 56.19 -15 28 05.1       21.373 20.373 ~ 2 0
10 [BD2004a] 45 C* 00 01 56.29 -15 27 35.3       22.232 21.104 ~ 2 0
11 [BD2004a] 47 C* 00 01 56.50 -15 28 46.4       22.299 20.746 ~ 2 0
12 [BD2004a] 50 C* 00 01 56.72 -15 27 47.6       22.319 21.078 ~ 2 0
13 [BD2004a] 58 C* 00 01 57.69 -15 29 10.8       21.478 20.161 ~ 2 0
14 MCG-03-01-015 G 00 01 57.9 -15 27 50   11.50 11.10 10.93   ~ 782 2
15 [BD2004a] 59 C* 00 01 58.15 -15 30 19.5       21.228 20.226 ~ 2 0
16 [BD2004a] 60 C* 00 01 58.21 -15 30 19.6       21.265 20.283 ~ 2 0
17 [BD2004a] 62 C* 00 01 58.22 -15 29 59.3   22.33 22.61 21.031 19.642 C 3 0
18 [BD2004a] 63 C* 00 01 58.38 -15 27 54.5       20.989 20.003 ~ 2 0
19 [BD2004a] 65 C* 00 01 58.49 -15 27 59.7       21.447 20.308 ~ 2 0
20 [BD2004a] 70 C* 00 01 58.93 -15 29 31.6       20.756 19.835 ~ 2 0
21 [BD2004a] 71 C* 00 01 58.97 -15 27 36.7       21.098 20.000 ~ 2 0
22 [BD2004a] 72 C* 00 01 58.99 -15 29 26.5       21.566 20.420 ~ 2 0
23 [BD2004a] 73 C* 00 01 59.08 -15 30 20.3       21.064 20.023 ~ 2 0
24 [BD2004a] 74 C* 00 01 59.11 -15 28 20.5       21.409 20.137 ~ 2 0
25 [BD2004a] 75 C* 00 01 59.19 -15 27 00.7   21.55 21.93 20.649 19.581 C 3 0
26 [BD2004a] 76 C* 00 01 59.20 -15 30 02.8       21.208 20.155 ~ 2 0
27 [BD2004a] 77 C* 00 01 59.29 -15 28 12.0       21.318 20.212 ~ 2 0
28 [BD2004a] 78 C* 00 01 59.35 -15 29 24.2       21.966 20.848 ~ 2 0
29 [BD2004a] 82 C* 00 01 59.76 -15 30 38.7       21.398 20.252 ~ 2 0
30 [BD2004a] 83 C* 00 01 59.81 -15 29 41.7       21.248 20.237 ~ 2 0
31 [BD2004a] 84 C* 00 01 59.86 -15 29 41.3       21.222 20.231 ~ 2 0
32 [BD2004a] 85 C* 00 01 59.95 -15 27 18.0       21.085 20.034 ~ 2 0
33 [BD2004a] 86 C* 00 01 59.97 -15 29 41.5       21.865 20.207 ~ 2 0
34 [BD2004a] 88 C* 00 02 00.02 -15 29 41.1       21.767 20.257 ~ 2 0
35 [BD2004a] 90 C* 00 02 00.09 -15 29 19.1       21.057 20.131 ~ 2 0
36 [BD2004a] 91 C* 00 02 00.12 -15 26 36.8       21.172 20.121 ~ 2 0
37 [BD2004a] 92 C* 00 02 00.29 -15 30 53.3       21.309 20.071 ~ 2 0
38 [BD2004a] 93 C* 00 02 00.49 -15 29 58.2       20.64 19.591 ~ 2 0
39 [BD2004a] 94 C* 00 02 00.55 -15 29 58.0       20.588 19.636 ~ 2 0
40 [BD2004a] 95 C* 00 02 00.64 -15 28 15.2       21.121 20.134 ~ 2 0
41 [BD2004a] 98 C* 00 02 00.77 -15 27 24.5       21.37 20.444 ~ 2 0
42 [BD2004a] 101 C* 00 02 01.19 -15 29 55.6       21.247 20.010 ~ 2 0
43 [BD2004a] 103 C* 00 02 01.35 -15 27 14.5       21.019 19.868 ~ 2 0
44 [BD2004a] 105 C* 00 02 01.45 -15 28 36.1   23.36 21.81 20.085 19.016 C 3 0
45 [BD2004a] 106 C* 00 02 01.47 -15 29 19.5       21.143 20.104 ~ 2 0
46 [BD2004a] 107 C* 00 02 01.52 -15 27 28.0       21.195 19.938 ~ 2 0
47 [BD2004a] 111 C* 00 02 01.75 -15 29 26.3       21.895 20.834 ~ 2 0
48 [BD2004a] 112 C* 00 02 02.07 -15 27 46.9       21.756 20.427 ~ 2 0
49 [BD2004a] 113 C* 00 02 02.11 -15 28 29.0       21.596 20.538 ~ 2 0
50 [BD2004a] 119 C* 00 02 02.52 -15 28 11.2       21.286 20.000 ~ 2 0
51 [BD2004a] 120 C* 00 02 02.91 -15 27 54.0       22.119 20.709 ~ 2 0
52 [BD2004a] 121 C* 00 02 02.99 -15 29 57.4       21.096 19.903 ~ 2 0
53 [BD2004a] 124 C* 00 02 03.18 -15 28 23.0       21.709 20.310 ~ 2 0
54 [BD2004a] 127 C* 00 02 03.87 -15 27 06.7       21.548 20.414 ~ 2 0
55 [BD2004a] 131 C* 00 02 04.29 -15 30 20.2       21.427 20.427 ~ 2 0
56 [BD2004a] 132 C* 00 02 04.35 -15 30 20.4       21.432 20.497 ~ 2 0
57 [BD2004a] 133 C* 00 02 04.39 -15 28 06.4       21.18 20.264 ~ 2 0
58 [BD2004a] 134 C* 00 02 04.82 -15 26 46.0       20.939 19.777 ~ 2 0
59 [BD2004a] 139 C* 00 02 05.76 -15 28 08.2       21.501 20.383 ~ 2 0
60 [BD2004a] 140 C* 00 02 05.99 -15 30 51.1       21.569 20.536 ~ 2 0
61 [BD2004a] 146 C* 00 02 08.05 -15 27 01.6       21.258 20.215 ~ 2 0
62 [DBL2004] 51 C* 00 19 40.28 +59 20 16.4       20.996 20.085 ~ 2 0
63 [DBL2004] 58 C* 00 19 42.83 +59 18 21.2       20.499 19.306 ~ 2 0
64 [DBL2004] 60 C* 00 19 43.38 +59 20 51.9       20.765 19.571 ~ 2 0
65 [DBL2004] 62 C* 00 19 43.65 +59 19 19.6       21.077 20.092 ~ 2 0
66 [DBL2004] 63 C* 00 19 43.81 +59 19 39.6       21.223 20.186 ~ 2 0
67 [DBL2004] 68 C* 00 19 44.42 +59 18 05.1       20.551 19.651 ~ 2 0
68 [DBL2004] 70 C* 00 19 44.79 +59 18 25.1       21.386 20.183 ~ 2 0
69 [DBL2004] 71 C* 00 19 45.82 +59 11 58.8       20.245 19.253 ~ 2 0
70 [DBL2004] 73 C* 00 19 46.03 +59 12 38.2       21.301 20.213 ~ 2 0
71 [DBL2004] 75 C* 00 19 46.42 +59 19 11.5       20.625 19.662 ~ 2 0
72 [DBL2004] 76 C* 00 19 46.45 +59 24 12.3       20.894 19.628 ~ 2 0
73 [DBL2004] 78 C* 00 19 47.01 +59 11 35.0       21.125 19.999 ~ 2 0
74 [DBL2004] 83 C* 00 19 47.99 +59 17 33.5       21.068 19.529 ~ 2 0
75 [DBL2004] 88 C* 00 19 48.54 +59 17 59.8       20.415 19.496 ~ 2 0
76 [DBL2004] 92 C* 00 19 49.41 +59 17 56.6       20.950 19.963 ~ 2 0
77 [DBL2004] 98 C* 00 19 50.10 +59 22 12.4       20.929 19.799 ~ 2 0
78 [DBL2004] 101 C* 00 19 50.61 +59 17 51.7       21.247 20.010 ~ 2 0
79 [DBL2004] 104 C* 00 19 50.93 +59 17 23.5       21.365 20.118 ~ 2 0
80 [DBL2004] 108 C* 00 19 52.47 +59 19 58.4       21.285 19.911 ~ 2 0
81 [DBL2004] 109 C* 00 19 52.55 +59 19 04.1       21.113 20.095 ~ 2 0
82 [DBL2004] 110 C* 00 19 52.65 +59 13 12.6       20.823 19.541 ~ 2 0
83 [DBL2004] 111 C* 00 19 52.68 +59 18 02.8       20.777 19.792 ~ 2 0
84 [DBL2004] 114 C* 00 19 53.83 +59 20 07.7       20.772 19.788 ~ 2 0
85 [DBL2004] 116 C* 00 19 53.96 +59 09 12.1       20.842 19.887 ~ 2 0
86 [DBL2004] 117 C* 00 19 54.12 +59 16 37.7       20.611 19.392 ~ 2 0
87 [DBL2004] 121 C* 00 19 54.89 +59 15 37.2       20.758 19.850 ~ 2 0
88 [DBL2004] 124 C* 00 19 55.42 +59 19 44.2       20.93 19.674 ~ 2 0
89 [DBL2004] 125 C* 00 19 55.45 +59 19 45.1       21.369 19.888 ~ 2 0
90 [DBL2004] 126 C* 00 19 55.50 +59 15 08.9       20.11 19.472 ~ 2 0
91 [DBL2004] 127 C* 00 19 55.98 +59 20 44.4       20.814 19.585 ~ 2 0
92 [DBL2004] 129 C* 00 19 56.37 +59 19 04.0       21.157 20.136 ~ 2 0
93 [DBL2004] 132 C* 00 19 56.55 +59 17 57.9       20.918 19.794 ~ 2 0
94 [DBL2004] 131 C* 00 19 56.55 +59 16 21.4       20.624 19.499 ~ 2 0
95 [DBL2004] 135 C* 00 19 57.00 +59 13 01.3       20.348 19.341 ~ 2 0
96 [DBL2004] 143 C* 00 19 59.16 +59 19 43.7       20.86 19.701 ~ 2 0
97 [DBL2004] 145 C* 00 19 59.30 +59 21 21.7       20.729 19.627 ~ 2 0
98 [DBL2004] 149 C* 00 19 59.63 +59 18 57.1       20.601 19.336 ~ 2 0
99 [DBL2004] 151 C* 00 19 59.93 +59 17 23.3       21.089 19.720 ~ 2 0
100 [DBL2004] 156 C* 00 20 00.34 +59 14 09.3       20.893 19.791 ~ 2 0
101 [DBL2004] 161 C* 00 20 01.10 +59 13 50.9       20.032 18.981 ~ 2 0
102 [DBL2004] 165 C* 00 20 01.66 +59 18 39.1       20.544 19.355 ~ 2 0
103 [DBL2004] 167 C* 00 20 01.78 +59 14 25.8       20.699 19.098 ~ 2 0
104 [DBL2004] 168 C* 00 20 02.08 +59 18 01.9       20.981 19.494 ~ 2 0
105 [DBL2004] 175 C* 00 20 02.88 +59 16 02.9       20.92 19.711 ~ 2 0
106 [DBL2004] 176 C* 00 20 02.89 +59 16 42.2       20.459 18.978 ~ 2 0
107 [DBL2004] 189 C* 00 20 04.56 +59 19 06.4       19.652 19.086 ~ 2 0
108 [DBL2004] 191 C* 00 20 04.71 +59 20 18.4       20.905 19.427 ~ 2 0
109 [DBL2004] 193 C* 00 20 04.87 +59 18 56.0       21.083 19.670 ~ 2 0
110 [DBL2004] 195 C* 00 20 05.11 +59 20 52.0       20.66 19.371 ~ 2 0
111 [DBL2004] 197 C* 00 20 05.81 +59 21 00.3       20.931 19.768 ~ 2 0
112 [DBL2004] 198 C* 00 20 06.27 +59 17 39.7       19.952 18.894 ~ 2 0
113 IC 10 rG 00 20 17.33520 +59 18 13.6480   13.6 9.5     ~ 1185 1
114 NGC 147 GiG 00 33 12.120 +48 30 31.46   12.0 9.5     ~ 720 1
115 NGC 185 Sy2 00 38 57.9400026024 +48 20 15.035874648   9.10 9.2     ~ 840 1
116 M 110 GiG 00 40 22.0572349992 +41 41 07.507220136   8.92 8.07     ~ 1370 1
117 M 31 AGN 00 42 44.330 +41 16 07.50 4.86 4.36 3.44     ~ 13622 1
118 NAME SMC G 00 52 38.0 -72 48 01   2.79 2.2     ~ 12317 1
119 MCG-06-07-001 G 02 39 59.3 -34 26 57   9.02 7.4     ~ 1894 1
120 NAME Magellanic Clouds GrG 03 00 -71.0           ~ 7988 0
121 NAME LMC G 05 23 34.6 -69 45 22     0.4     ~ 19090 0
122 NGC 6822 G 19 44 56.199 -14 47 51.29   18 8.1     ~ 1661 0
123 NAME Local Group GrG ~ ~           ~ 9325 0

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