2002AJ....123.3428D

Query : 2002AJ....123.3428D

2002AJ....123.3428D - Astron. J., 123, 3428-3433 (2002/June-0)

2MASS observations of spectroscopically identified extragalactic C stars.

DEMERS S., DALLAIRE M. and BATTINELLI P.

Abstract (from CDS):

We matched spectroscopically identified C stars (from low-resolution objective prism surveys) in the Magellanic Clouds with Two Micron All Sky Survey (2MASS) sources. We confirm that C stars show a large spread in absolute magnitudes, even in the Ks band. We show that the I and Ks magnitude distributions of a population of C stars (in the LMC) have a similar narrow dispersion if the C stars are selected in a well-defined color range. Using magnitude and color criteria, we employ the 2MASS data to identify 26 C stars in the Fornax dwarf spheroidal galaxy. The mean Ks magnitude and the mean bolometric magnitude of C stars are found to be slightly brighter in the LMC and SMC when compared with those of the Fornax dwarf spheroidal galaxy. The difference could be explained by ages and/or abundance differences.

Abstract Copyright: ∼

Journal keyword(s): Galaxies: Individual: Name: Fornax - Galaxies: Magellanic Clouds - Stars: Carbon - Techniques: Photometric

Nomenclature: Table 1: [DDB2002] NN (Nos 1-26).

Simbad objects: 31

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Number of rows : 31
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 SMC G 00 52 38.0 -72 48 01   2.79 2.2     ~ 11145 1
2 [DI87] V8 C* 02 37 40.5940398936 -34 20 08.057768424   21.2 19.1     C 3 0
3 [DI87] V28 C* 02 38 56.9957262360 -34 46 34.036451076   23.1 19.793   16.173 C 9 0
4 DK 36 C* 02 38 58.2986721168 -34 32 11.774469372   20.49 18.385   16.058 C 8 0
5 DK 19 C* 02 39 31.7870015068 -34 36 39.993704379   21.24 18.89     C 7 0
6 DK 20 C* 02 39 34.4023090968 -34 37 14.177971992   20.96 18.50     C 7 0
7 DK 17 C* 02 39 34.7310831888 -34 38 57.571529136   20.75 18.67     C 6 0
8 DK 21 C* 02 39 37.3792518264 -34 36 26.904605544   22.565 20.062     C 8 0
9 DK 46 C* 02 39 40.6061681184 -34 20 14.852101380   20.06 17.68     C 10 0
10 WEL C2 C* 02 39 48.4396479323 -34 35 07.718064294   21.905 19.612     C 5 0
11 FBMC Fornax 14 C* 02 39 51.8594014656 -34 33 20.038319280   23.656 19.130   15.719 C 6 0
12 FBMC Fornax 5 C* 02 39 55.2094815768 -34 25 26.402923776   21.024 19.053     C 6 0
13 DK 22 C* 02 39 58.3631669520 -34 36 21.465166824   20.77 18.19     C3,3 9 0
14 NAME Fornax Dwarf Spheroidal G 02 39 59.3 -34 26 57   9.02 7.4     ~ 1741 1
15 DK 44 C* 02 40 00.9408274368 -34 22 43.250740392   21.63 18.242   15.802 C 11 0
16 DK 55 C* 02 40 02.5227232560 -34 27 42.581312712   21.70 19.386   16.279 C 8 0
17 DK 62 C* 02 40 02.7366417144 -34 31 48.872523288   21.11 19.351   15.998 C 9 0
18 DK 61 C* 02 40 05.3802739440 -34 32 18.158165880   21.04 19.157   15.879 C 8 0
19 DK 52 C* 02 40 06.6689367768 -34 23 22.257082824   21.39 18.06 17.93 18.15 C 12 0
20 FBMC Fornax 9 C* 02 40 09.0981681120 -34 34 39.716836500   21.491 18.597   15.904 C 7 0
21 WEL C10 C* 02 40 10.1745568752 -34 33 21.841179192   22.305 19.413 18.24 15.726 C 12 0
22 DK 65 C* 02 40 15.6290403816 -34 34 02.964090036   21.61 19.358   16.150 C 9 0
23 WEL C17 C* 02 40 23.4215443095 -34 43 22.583020544   21.127 19.146     C 6 0
24 [DDB2002] 22 C* 02 40 31.2343698096 -34 28 44.183337780   20.63 20.062 18.14 16.994 C 11 0
25 DK 23 Mi* 02 40 52.2395948064 -34 37 23.073932172   21.25 18.370   16.270 ~ 8 0
26 [DI87] V4 C* 02 40 53.3265775824 -34 12 13.166312400   20.5 17.81     C 9 0
27 [DDB2002] 25 C* 02 41 03.5576531520 -34 48 05.388235200   23.3 20.412 17.63 16.619 C 10 0
28 [SHS98] 152 LP* 02 41 08.3001803784 -34 35 52.522916964   21.94 18.65     ~ 5 0
29 NAME Magellanic Clouds GrG 03 00 -71.0           ~ 7062 0
30 NAME LMC G 05 23 34.6 -69 45 22     0.4     ~ 17428 0
31 NAME Local Group GrG ~ ~           ~ 8387 0

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