2009ApJ...707.1417V


C.D.S. - SIMBAD4 rel 1.7 - 2021.04.16CEST11:35:12

2009ApJ...707.1417V - Astrophys. J., 707, 1417-1426 (2009/December-3)

A Hubble space telescope view of the interstellar environments of young stellar objects in the Large Magellanic Cloud.

VAIDYA K., CHU Y.-H., GRUENDL R.A., CHEN C.-H.R. and LOONEY L.W.

Abstract (from CDS):

We have used archival Hubble Space Telecope (HST) Hα images to study the immediate environments of massive and intermediate-mass young stellar object (YSO) candidates in the Large Magellanic Cloud (LMC). The sample of YSO candidates, taken from Gruendl & Chu, was selected based on Spitzer IRAC and MIPS observations of the entire LMC and complementary ground-based optical and near-infrared observations. We found HST Hα images for 99 YSO candidates in the LMC, of which 82 appear to be genuine YSOs. More than 95% of the YSOs are found to be associated with molecular clouds. YSOs are seen in three different kinds of environments in the Hα images: in dark clouds, inside or on the tip of bright-rimmed dust pillars, and in small H II regions. Comparisons of spectral energy distributions for YSOs in these three different kinds of environments suggest that YSOs in dark clouds are the youngest, YSOs with small H II regions are the most evolved, and YSOs in bright-rimmed dust pillars span a range of intermediate evolutionary stages. This rough evolutionary sequence is substantiated by the presence of silicate absorption features in the Spitzer Infrared Spectrograph spectra of some YSOs in dark clouds and in bright-rimmed dust pillars, but not those of YSOs in small H II regions. We present a discussion on triggered star formation for YSOs in bright-rimmed dust pillars or in dark clouds adjacent to H II regions. As many as 50% of the YSOs are resolved into multiple sources in high-resolution HST images. This illustrates the importance of using high-resolution images to probe the true nature and physical properties of YSOs in the LMC.

Abstract Copyright:

Journal keyword(s): H II regions - Magellanic Clouds - stars: formation

VizieR on-line data: <Available at CDS (J/ApJ/707/1417): table1.dat table2.dat table3.dat table4.dat>

Simbad objects: 139

goto Full paper

goto View the reference in ADS

Number of rows : 139

N Identifier Otype ICRS (J2000)
RA
ICRS (J2000)
DEC
Mag U Mag B Mag V Mag R Mag I Sp type #ref
1850 - 2021
#notes
1 NAME Magellanic Clouds GrG 03 00 -71.0           ~ 5905 1
2 LHA 120-N 83 HII 04 54 15 -69 10.6           ~ 37 0
3 NGC 1748 As* 04 54 24.6 -69 11 01   12.750 12.3     ~ 58 2
4 LHA 120-N 83B HII 04 54 25.2 -69 11 00           ~ 47 1
5 2MASS J04542610-6911022 Y*O 04 54 26.101 -69 11 02.23           O7V 11 0
6 [GC2009] J045429.42-690936.9 Y*O 04 54 29.404 -69 09 36.68           ~ 3 0
7 SNR J045447-662528 SNR 04 54 48.00 -66 25 42.0           ~ 108 0
8 NGC 1760 HII 04 56 20.8 -66 32 13           ~ 29 0
9 [GC2009] J045625.98-663155.5 Y*O 04 56 25.98 -66 31 55.5           ~ 3 0
10 [GC2009] J045627.37-663201.0 Y*O 04 56 27.3271555322 -66 32 00.954330813           ~ 2 0
11 [GC2009] J045628.68-663143.4 Y*O 04 56 28.6460997577 -66 31 42.854977986           ~ 2 0
12 [GC2009] J045629.02-663159.3 Y*O 04 56 29.1758306894 -66 31 59.219601412           ~ 3 0
13 [GC2009] J045633.02-662359.8 Y*O 04 56 33.02 -66 23 59.8   18.959 18.853     ~ 4 0
14 DEM L 34 HII 04 56 34.3 -66 26 52           ~ 100 0
15 [GC2009] J045638.76-662446.2 Y*O 04 56 38.76 -66 24 46.2           ~ 3 0
16 NGC 1761 As* 04 56 39 -66 29.0     9.94     ~ 97 0
17 2MASS J04564078-6632307 Y*O 04 56 40.784 -66 32 30.79           ~ 10 0
18 [GC2009] J045641.23-663132.8 Y*O 04 56 41.23 -66 31 32.8           ~ 2 0
19 PGMW 3126 * 04 56 47.107 -66 24 59.33 13.391 14.371 14.050   14.034 O6.5V 6 0
20 LHA 120-N 11 HII 04 56 51.4 -66 24 24           ~ 239 0
21 NGC 1763 As* 04 56 51.5 -66 24 25     9.40     ~ 158 3
22 2MASS6X J04565181-6631329 Y*O 04 56 51.7968839604 -66 31 33.166685491 16.654 17.372 17.257   17.259 ~ 5 0
23 2MASS J04565718-6625130 Y*O 04 56 57.188 -66 25 13.01           ~ 3 0
24 [GC2009] J045658.24-662430.7 IR 04 56 58.24 -66 24 30.7           ~ 2 0
25 2MASS J04565987-6624258 Y*O 04 56 59.8486932421 -66 24 26.054990843   15.915 15.516     ~ 5 0
26 [GC2009] J045702.52-662503.3 IR 04 57 02.52 -66 25 03.3           ~ 3 0
27 HD 268726 s*b 04 57 08.8244310980 -66 23 25.200703667 10.475 11.39 11.265     B2Ia 28 0
28 IRAS 04571-6627 mul 04 57 15.5 -66 23 14           ~ 52 1
29 HD 32340 Em* 04 57 16.253 -66 23 20.94   13.11 12.45 14.00   O3-O6V 77 0
30 [GC2009] J045720.72-662814.4 Y*O 04 57 20.6183472915 -66 28 14.836639781           ~ 3 0
31 [GC2009] J045725.74-662545.8 Y*O 04 57 25.8623390518 -66 25 45.404872294           ~ 2 0
32 [GC2009] J045726.42-662248.4 Y*O 04 57 26.42 -66 22 48.4           ~ 2 0
33 [GC2009] J045737.61-662726.7 Y*O 04 57 37.61 -66 27 26.7           ~ 2 0
34 [GC2009] J045739.04-662731.3 Y*O 04 57 39.04 -66 27 31.3           ~ 2 0
35 [GC2009] J045742.00-662634.4 Y*O 04 57 42.00 -66 26 34.4           ~ 4 0
36 NGC 1769 As* 04 57 44.5 -66 27 42           ~ 68 2
37 [GC2009] J045747.68-662816.9 Y*O 04 57 47.759 -66 28 16.67           ~ 4 0
38 LHA 120-N 11D EmO 04 57.8 -66 28           ~ 17 0
39 LHA 120-N 30B EmO 05 13 49 -67 27.3           ~ 14 0
40 2MASS J05135147-6727217 Y*O 05 13 51.474 -67 27 21.80           ~ 5 0
41 NGC 1871 As* 05 13 52.360 -67 27 19.88   10.21 10.09     ~ 36 0
42 DEM L 106 HII 05 13 53.1 -67 27 05           ~ 31 0
43 DEM L 132a HII 05 18.4 -69 15           ~ 12 0
44 2MASS6X J05182910-6914578 Y*O 05 18 29.107 -69 14 57.89 16.460 17.406 16.968   16.576 ~ 4 0
45 LHA 120-N 119 HII 05 18 39.2 -69 13 22           ~ 52 1
46 NGC 1910 As* 05 18 42.50 -69 14 12.1     9.65     ~ 48 1
47 [GC2009] J052135.83-675443.0 Y*O 05 21 35.83 -67 54 43.0 17.16 17.75 17.28   17.30 ~ 3 0
48 NGC 1929 Cl* 05 21 38.16 -67 54 43.2   14.0       ~ 25 0
49 NGC 1935 As* 05 21 58 -67 57.3           ~ 102 0
50 LHA 120-N 44 EmO 05 22 06.9 -67 56 46           ~ 173 1
51 [GC2009] J052207.27-675819.7 Y*O 05 22 07.2221379425 -67 58 20.495243793 17.73 18.35 18.16   17.50 ~ 6 0
52 2MASS J05220737-6758270 Y*O 05 22 07.377 -67 58 27.06           ~ 5 0
53 [GC2009] J052208.52-675922.1 Y*O 05 22 08.52 -67 59 22.1 18.00 18.75 18.68   18.50 ~ 4 0
54 [GC2009] J052211.86-675818.1 Y*O 05 22 11.86 -67 58 18.1         22.70 ~ 4 0
55 2MASS J05221226-6758127 Y*O 05 22 12.263 -67 58 12.77         18.60 ~ 4 0
56 IC 2127 EmO 05 22 12.532 -67 58 31.92     11.60     ~ 92 1
57 [GC2009] J052218.80-675814.6 IR 05 22 18.80 -67 58 14.6           ~ 3 0
58 DEM L 160 HII 05 22 45.2 -68 04 00           ~ 15 0
59 LHA 120-N 44H EmO 05 22 48.43 -68 01 09.8           ~ 12 0
60 2MASS J05224915-6801290 Y*O 05 22 49.153 -68 01 29.04 17.66 18.41 17.98   15.80 ~ 5 0
61 LH 49 As* 05 22 55 -68 03.6           ~ 29 1
62 NAME LMC G 05 23 34.6 -69 45 22     0.4     ~ 15290 1
63 LHA 120-N 51D HII 05 25 17.3 -67 22 47           ~ 108 0
64 2MASS6X J05260123-6730119 Y*O 05 26 01.231 -67 30 11.95 15.03 16.16 16.26     ~ 11 0
65 NGC 1955 As* 05 26 12 -67 29.9   8.95 8.87     ~ 64 0
66 2MASS J05261983-6730332 Y*O 05 26 19.831 -67 30 33.24           ~ 3 0
67 [GC2009] J053525.90-691428.6 IR 05 35 25.90 -69 14 28.6           ~ 2 0
68 NGC 2030 HII 05 35 33.6 -66 02 26           ~ 69 0
69 LH 83 As* 05 35 34 -66 03.0           ~ 40 1
70 LHA 120-N 157 HII 05 35 49 -69 12.6           ~ 47 0
71 2MASS J05354934-6601335 Y*O 05 35 49.342 -66 01 33.55           ~ 4 0
72 2MASS J05355040-6924216 Y*O 05 35 50.405 -69 24 21.62           ~ 2 0
73 [GC2009] J053554.84-691426.7 IR 05 35 54.84 -69 14 26.7           ~ 2 0
74 2MASS J05360952-6918057 Y*O 05 36 09.525 -69 18 05.75 16.538 17.206 16.863 13.190 16.506 ~ 3 0
75 2MASS J05362343-6910019 Y*O 05 36 23.437 -69 10 02.00           ~ 3 0
76 2MASS J05362774-6914343 NIR 05 36 27.743 -69 14 34.35           ~ 2 0
77 [GC2009] J053628.51-691636.6 Y*O 05 36 28.51 -69 16 36.6           ~ 2 0
78 2MASS J05363082-6918172 Y*O 05 36 30.9436866146 -69 18 16.916010397       18.030   ~ 9 0
79 NAME 30 Dor 016 * 05 37 08.8775810516 -69 07 20.377571697 12.623 13.584 13.546   13.816 O2IIIf* 37 0
80 VFTS 122 Y*O 05 37 42.63 -69 09 43.6   16.77 16.53     B1.5V 8 0
81 2MASS J05382113-6906169 * 05 38 21.131 -69 06 17.00   16.34 16.11     B1-2V-IIIe+ 7 0
82 [GC2009] J053822.44-690644.4 Y*O 05 38 22.420 -69 06 44.45           ~ 3 0
83 [GC2009] J053825.21-690405.2 IR 05 38 25.21 -69 04 05.2           ~ 2 0
84 [RBW98] IRSW-11 Y*O 05 38 33.09 -69 06 11.8           ~ 8 0
85 [GC2009] J053834.06-690452.2 * 05 38 34.021 -69 04 52.29           ~ 3 0
86 2MASS J05383461-6905569 Y*O 05 38 34.619 -69 05 56.92     18.41   16.75 ~ 16 0
87 NAME 30 Dor Nebula SFR 05 38 36.0 -69 05 11           ~ 1063 2
88 2MASS J05383845-6904182 * 05 38 38.4472134247 -69 04 17.975377663           ~ 2 0
89 2MASS J05383849-6906297 NIR 05 38 38.491 -69 06 29.77           ~ 3 0
90 2MASS J05383933-6905522 Y*O 05 38 39.337 -69 05 52.25           ~ 4 0
91 2MASS J05383971-6905386 Y*O 05 38 39.720 -69 05 38.65           ~ 5 0
92 LH 100 As* 05 38 40 -69 05.8   5.81 5.40     ~ 28 1
93 OGLE LMC-ECL-21448 Y*O 05 38 43.52 -69 06 28.7 17.648 17.374 17.365   17.340 ~ 6 0
94 2MASS J05384430-6903292 NIR 05 38 44.305 -69 03 29.21           ~ 2 0
95 2MASS J05384507-6905086 Y*O 05 38 45.073 -69 05 08.64   14.73 14.72     O9V(n)p 18 0
96 [GC2009] J053845.99-690930.8 IR 05 38 45.99 -69 09 30.8           ~ 2 0
97 2MASS J05384813-6904117 Y*O 05 38 48.138 -69 04 11.72           ~ 4 0
98 [GC2009] J053848.42-690441.6 IR 05 38 48.42 -69 04 41.6           ~ 4 0
99 2MASS J05384889-6908279 SB* 05 38 48.8703684847 -69 08 28.118817048 15.549 16.260 16.281   15.802 O9.7III(n) 11 0
100 2MASS J05384921-6904445 Y*O 05 38 49.215 -69 04 44.55           ~ 10 0
101 [RBW98] IRSN-169 IR 05 38 52.72 -69 04 37.5           ~ 7 0
102 2MASS J05385273-6904374 Y*O 05 38 52.730 -69 04 37.49           ~ 7 0
103 UCAC4 105-014417 WR* 05 38 55.5218836143 -69 04 26.810760074   16.66 16.08   14.89 WN5h 50 0
104 2MASS J05385838-6904350 Y*O 05 38 58.3916180060 -69 04 35.209104333   16.64 16.31   15.768 O8V(n) 13 0
105 NGC 2074 As* 05 39 03 -69 29.9           ~ 60 0
106 2MASS J05390487-6929496 LP* 05 39 04.872 -69 29 49.67     19.20 18.019   ~ 6 0
107 2MASS J05390632-6929312 NIR 05 39 06.327 -69 29 31.27           ~ 2 0
108 2MASS J05390632-6930432 Y*O 05 39 06.328 -69 30 43.23           ~ 3 0
109 [GC2009] J053909.08-693005.7 IR 05 39 09.08 -69 30 05.7           ~ 2 0
110 NGC 2081 HII 05 39 10.50 -69 30 16.0           ~ 50 1
111 [GC2009] J053912.67-692941.4 Y*O 05 39 12.67 -69 29 41.4           ~ 3 0
112 [GC2009] J053912.79-693041.8 Y*O 05 39 12.79 -69 30 41.8           ~ 2 0
113 [GC2009] J053922.74-693011.7 IR 05 39 22.7483490967 -69 30 12.139977802           ~ 2 0
114 DEM L 269 HII 05 39 31.1 -69 27 31           ~ 22 0
115 NGC 2077 Cl* 05 39 34.5 -69 39 19   11.71 11.71     ~ 39 1
116 2MASS J05393871-6939039 Y*O 05 39 38.715 -69 39 03.93           ~ 4 0
117 NGC 2080 HII 05 39 42.6 -69 38 50           ~ 97 1
118 2MASS J05394329-6938542 Y*O 05 39 43.2531232833 -69 38 54.336102149           ~ 4 0
119 [GC2009] J053943.60-693820.4 Y*O 05 39 43.60 -69 38 20.4           ~ 2 0
120 NAME LHA 120-N 160A IR Y*O 05 39 43.822 -69 38 33.84           ~ 14 1
121 [GC2009] J053944.33-693847.5 Y*O 05 39 44.33 -69 38 47.5           ~ 4 0
122 2MASS J05394591-6938386 Y*O 05 39 45.917 -69 38 38.66           ~ 5 0
123 LHA 120-N 160 EmO 05 39 47.9 -69 37 08           ~ 111 1
124 2MASS J05394924-6937468 ** 05 39 49.242 -69 37 46.81           O7V+B0V 5 0
125 LH 105 As* 05 39 54 -69 44.9   9.00 8.73     ~ 28 0
126 LH 103 As* 05 39 57 -69 39.6   8.50 8.09     ~ 29 0
127 NGC 2083 Cl* 05 39 59 -69 44.1     10.83     ~ 16 0
128 [GC2009] J054003.49-694354.9 Y*? 05 40 03.49 -69 43 54.9           ~ 3 0
129 2MASS J05400448-6944375 Y*O 05 40 04.483 -69 44 37.53           ~ 12 0
130 LHA 120-N 159B EmO 05 40.1 -69 44           ~ 3 0
131 DEM L 271 HII 05 40 06.8 -69 45 28           ~ 19 0
132 [MHD2004] 517 Y*O 05 40 09.49 -69 44 53.5           ~ 10 0
133 LHA 120-N 159G EmO 05 40 19 -69 45.0           ~ 7 0
134 [JWB2005] 134 Y*O 05 40 19.00 -69 44 45.6           ~ 5 0
135 [GC2009] J054839.05-700536.4 Y*O 05 48 39.05 -70 05 36.4           ~ 3 0
136 2MASS J05484133-7005363 Y*O 05 48 41.335 -70 05 36.35           ~ 3 0
137 2MASS J05484435-7004003 Y*O 05 48 44.354 -70 04 00.35           ~ 4 0
138 2MASS J05485365-7003201 Y*O 05 48 53.658 -70 03 20.14           ~ 3 0
139 NGC 2122 As* 05 48 55 -70 04.1     10.43     ~ 90 0

    Equat.    Gal    SGal    Ecl

To bookmark this query, right click on this link: simbad:objects in 2009ApJ...707.1417V and select 'bookmark this link' or equivalent in the popup menu


2021.04.16-11:35:12

© Université de Strasbourg/CNRS

    • Contact