2003A&A...411..427H

Query : 2003A&A...411..427H

2003A&A...411..427H - Astronomy and Astrophysics, volume 411427-435 (2003/12-1)

The stellar environment of SMC N81.

HEYDARI-MALAYERI M., MEYNADIER F., CHARMANDARIS V., DEHARVENG L., LE BERTRE T., ROSA M.R. and SCHAERER D.

Abstract (from CDS):

We present near infrared JHK imaging of the Small Magellanic Cloud compact HII region N81 using the ISAAC camera at the ESO Very Large Telescope (Antu). Our analysis of the stellar environment of this young massive star region reveals the presence of three new stellar populations in the surrounding field which are mainly composed of low mass stars. The main population is best fitted by evolutionary models for ∼2M☉ stars with an age of 1Gyr. We argue that these populations are not physically associated with the HII region N81. Instead they are the result of a number of low mass star forming events through the depth of the SMC south of its Shapley's wing. The populations can rather easily be probed due to the low interstellar extinction in that direction.

Abstract Copyright: ∼

Journal keyword(s): stars: early-type - ISM: individual objects: N81 (SMC) - galaxies: Magellanic Clouds

Nomenclature: Table 1, parag.3.2: [HMC2003b] NNN N=42 among 519.

CDS comments: parag.3.2: background galaxy = EQ J010925.8-731155.9 in SIMBAD.

Simbad objects: 60

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Number of rows : 60
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 NAME SMC G 00 52 38.0 -72 48 01   2.79 2.2     ~ 12317 1
2 LHA 115-N 70 PN 00 59 16.1329481088 -72 01 59.841527196   16.07 16.016   16.916 ~ 48 0
3 SNR B0057-72.2 SNR 00 59 27.40 -72 10 10.7   12.37 12.57     ~ 251 0
4 2MASS J01090277-7312346 * 01 09 02.77 -73 12 34.7           ~ 1 0
5 [HMC2003b] 33 * 01 09 04.36 -73 12 40.9           ~ 1 0
6 [HMC2003b] 36 * 01 09 04.62 -73 12 33.5           ~ 1 0
7 [HMC2003b] 37 * 01 09 04.69 -73 12 41.9           ~ 1 0
8 [HMC2003b] 39 G 01 09 04.85 -73 11 26.3           ~ 1 0
9 [HMC2003b] 40 * 01 09 05.3 -73 12 42           ~ 1 0
10 [HMC2003b] 43 * 01 09 05.31 -73 12 40.8           ~ 1 0
11 [HMC2003b] 49 * 01 09 06.30 -73 12 12.6           ~ 1 0
12 [HMC2003b] 80 * 01 09 09.15 -73 11 36.5           ~ 1 0
13 2MASS J01090961-7312301 * 01 09 09.62 -73 12 30.1           ~ 1 0
14 [HMC2003b] 86 * 01 09 09.66 -73 11 44.7           ~ 1 0
15 [HMC2003b] 92 * 01 09 09.96 -73 11 45.3           ~ 1 0
16 [HMC2003b] 94 * 01 09 10.43 -73 11 45.4           ~ 1 0
17 [HMC2003b] 95 * 01 09 10.48 -73 12 12.1           ~ 1 0
18 [HMC2003b] 96 * 01 09 10.49 -73 11 47.4           ~ 1 0
19 [HMC2003b] 111 * 01 09 11.69 -73 11 45.0           ~ 2 0
20 [HMC2003b] 112 * 01 09 11.87 -73 12 10.8           ~ 1 0
21 [HMC2003b] 116 * 01 09 12.68 -73 12 11.1           ~ 1 0
22 [HMC2003b] 118 * 01 09 12.78 -73 11 53.4           ~ 1 0
23 [HMC2003b] 119 * 01 09 12.82 -73 11 40.2           ~ 3 0
24 HD 7113 Em* 01 09 12.94464 -73 11 38.8968     11.7     ~ 131 0
25 2MASS J01091297-7311238 * 01 09 12.9749458992 -73 11 23.680495428           ~ 2 0
26 [HRZ99] 2 * 01 09 13.03 -73 11 38.0     14.87     O6.5 5 0
27 [HMC2003b] 122 * 01 09 13.05 -73 11 38.3     14.38     O7 5 0
28 [HMC2003b] 125 * 01 09 13.22 -73 11 46.4           ~ 2 0
29 [HMC2003b] 126 * 01 09 13.32 -73 12 07.2           ~ 1 0
30 [HMC2003b] 127 * 01 09 13.35 -73 11 38.4     16.10     O8.5 5 0
31 [HMC2003b] 130 * 01 09 13.74 -73 11 33.3     15.74     O7.5 5 0
32 [HMC2003b] 133 * 01 09 14.63 -73 11 28.2           ~ 1 0
33 [HMC2003b] 134 * 01 09 14.67 -73 11 54.8           ~ 1 0
34 [HMC2003b] 137 * 01 09 15.05 -73 11 39.5           ~ 1 0
35 [HMC2003b] 141 * 01 09 15.61 -73 11 35.6           ~ 2 0
36 [HMC2003b] 143 * 01 09 16.08 -73 11 29.1           ~ 3 0
37 [HMC2003b] 147 * 01 09 16.58 -73 11 51.2           ~ 2 0
38 [MA93] 1691 Em* 01 09 19.3020956064 -73 11 54.691148940   16.58 16.5 16.8 16.18 ~ 4 0
39 2MASS J01091972-7311322 * 01 09 19.73 -73 11 32.2           ~ 1 0
40 UCAC3 34-10681 * 01 09 20.4022292856 -73 10 46.794758916       15.34   ~ 3 0
41 [HMC2003b] 190 * 01 09 21.17 -73 12 14.8           ~ 1 0
42 2MASS J01092188-7311200 * 01 09 21.8860331808 -73 11 19.967667936   14.35 14.52     ~ 4 0
43 2MASS J01092308-7311377 RB? 01 09 23.08 -73 11 37.7 19.34 19.28 18.07   17.06 ~ 2 0
44 2MASS J01092310-7312209 * 01 09 23.0939836584 -73 12 20.991542436           ~ 1 0
45 2MASS J01092340-7310512 * 01 09 23.40 -73 10 51.2           ~ 1 0
46 2MASS J01092517-7311097 * 01 09 25.1784508152 -73 11 09.602160000           ~ 1 0
47 EQ J010925.8-731155.9 G 01 09 25.8 -73 11 56           ~ 1 0
48 [HMC2003b] 145 * 01 11 41.6 -73 11 43           ~ 2 0
49 LHA 115-N 88A HII 01 24 07.823 -73 09 03.77   13.25 12.18     ~ 83 1
50 LHA 115-N 88 HII 01 24 08.1 -73 09 04           ~ 72 1
51 LHA 115-N 90 HII 01 29 30.15 -73 33 10.5           ~ 69 2
52 LHA 120-N 83B HII 04 54 25.2 -69 11 00           ~ 48 1
53 IRAS 04571-6627 mul 04 57 15.5 -66 23 14           ~ 53 1
54 HD 32340 Em* 04 57 16.253 -66 23 20.94   13.11 12.45 14.00   O3-O6V 78 0
55 NAME LMC G 05 23 34.6 -69 45 22     0.4     ~ 19090 0
56 NAME Orion Peak 1 PoC 05 35 13.57 -05 22 03.8           ~ 36 0
57 NAME Orion Peak 2 PoC 05 35 15.74 -05 22 39.9           ~ 22 0
58 [JHS86] N160A-9 HII 05 39 43.3 -69 38 51           ~ 23 0
59 [GSL2002] 122 HII 05 39 46.1 -69 38 37           ~ 23 0
60 NAME N159 Blob in LMC HII 05 40 04.2 -69 44 43           ~ 40 0

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