2007ApJ...665L..23N

Query : 2007ApJ...665L..23N

2007ApJ...665L..23N - Astrophys. J., 665, L23-L26 (2007/August-2)

Stellar populations in the outskirts of the Small Magellanic Cloud: no outer edge yet.

NOEL N.E.D. and GALLART C.

Abstract (from CDS):

We report the detection of intermediate-age and old stars belonging to the SMC at 6.5 kpc from the SMC center in the southern direction. We show, from the analysis of three high-quality 34'x33' CMDs, that the age composition of the stellar population is similar at galactocentric distances of ∼4.7, ∼5.6, and ∼6.5 kpc. The surface brightness profile of the SMC follows an exponential law, with no evidence of truncation, all the way out to 6.5 kpc. These results, taken together, suggest that the SMC ``disk'' population is dominating over a possible old Milky Way-like stellar halo and that the SMC may be significantly larger than previously thought.

Abstract Copyright: ∼

Journal keyword(s): Galaxies: Evolution - Galaxies: Halos - Galaxies: Stellar Content - Galaxies: Magellanic Clouds

Simbad objects: 16

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Number of rows : 16
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 MCG-03-01-015 G 00 01 57.9 -15 27 50   11.50 11.10 10.93   ~ 782 2
2 NGC 104 GlC 00 24 05.359 -72 04 53.20     4.09     ~ 4158 0
3 NAME Magellanic Stream HVC 00 32 -30.0           ~ 1079 1
4 NAME SMC G 00 52 38.0 -72 48 01   2.79 2.2     ~ 12317 1
5 SA 92- reg 00 55 03.80 +00 47 13.2           ~ 102 0
6 NGC 362 GlC 01 03 14.26 -70 50 55.6     6.58     ~ 1167 0
7 IC 1613 GiC 01 04 48.4071 +02 07 10.185   10.42 10.01 9.77   ~ 1316 2
8 NAME Magellanic Bridge HI 03 11 -77.5           ~ 522 1
9 SA 95- reg 03 53 21.0 -00 01 10           ~ 85 0
10 NAME LMC G 05 23 34.6 -69 45 22     0.4     ~ 19090 0
11 ESO 206-20A G 06 41 36.7 -50 57 58   22.14 11.0 19.47   ~ 1190 0
12 RL 149 HS* 07 24 14.3741784768 -00 33 04.165016904 12.958 13.737 13.866 13.906 13.974 sdB 114 0
13 SA 104- reg 12 42 21.0 -00 32 29           ~ 58 0
14 SA 110- reg 18 45 +00.6           ~ 100 0
15 SA 113- reg 21 40 58.9 +00 27 43           ~ 60 0
16 NAME Local Group GrG ~ ~           ~ 9325 0

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