2010ApJ...716.1478W

Query : 2010ApJ...716.1478W

2010ApJ...716.1478W - Astrophys. J., 716, 1478-1492 (2010/June-3)

Triggered star formation and dust around mid-infrared-identified bubbles.

WATSON C., HANSPAL U. and MENGISTU A.

Abstract (from CDS):

We use Two Micron All Sky Survey, GLIMPSE, and MIPSGAL survey data to analyze the young stellar object (YSO) and warm dust distribution around several mid-infrared-identified bubbles. We identify YSOs using J-band to 8 µm photometry and correlate their distribution relative to the photodissociation region (PDR; as traced by diffuse 8 µm emission), which we assume to be associated with and surrounding an H II region. We find that only 20% of the sample H II regions appear to have a significant number of YSOs associated with their PDRs, implying that triggered star formation mechanisms acting on the boundary of the expanding H II region do not dominate in this sample. We also measure the temperature of dust inside 20 H II regions using 24 µm and 70 µm MIPSGAL images. In eight circularly symmetric sources, we analyze the temperature distribution and find shallower temperature gradients than predicted by an analytic model. Possible explanations of this shallow temperature gradient are a radially dependent grain-size distribution and/or non-equilibrium radiative processes.

Abstract Copyright: ∼

Journal keyword(s): H II regions - ISM: bubbles - ISM: molecules - stars: formation - stars: massive

Simbad objects: 74

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Number of rows : 74
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 RRF 1343 HII 02 20 05.6 +61 07 04           ~ 38 1
2 SH 2-212 HII 04 40 36.52 +50 27 44.3           ~ 102 2
3 NAME Taurus Complex SFR 04 41.0 +25 52           ~ 4971 0
4 LBN 159.33+02.55 HII 04 56 05.5 +47 22 33           ~ 73 0
5 LBN 159.17+03.33 HII 04 58 45.7 +47 59 36           ~ 86 1
6 [ABB2014] WISE G307.795-00.481 bub 13 34 24.3 -62 56 47           ~ 4 0
7 GRS G308.60 +00.60 HII 13 39.9 -61 45           ~ 108 0
8 RCW 82 HII 13 59.3 -61 27           ~ 33 0
9 [ABB2014] WISE G312.155-00.314 bub 14 10 36.5 -61 45 33           ~ 4 0
10 [ABB2014] WISE G315.982-00.184 bub 14 39 47.8 -60 16 46           ~ 6 0
11 [ABB2014] WISE G322.419+00.208 bub 15 21 51.5 -56 51 44           ~ 4 0
12 [ABB2014] WISE G323.973+00.057 bub 15 31 48.9 -56 07 02           ~ 4 0
13 [ABB2014] WISE G324.071-00.812 bub 15 35 58.9 -56 46 31           ~ 4 0
14 [CPA2006] S41 bub 16 34 18.1 -48 00 41           ~ 6 0
15 [CPA2006] S29 bub 16 40 15 -45 40.6           ~ 5 0
16 [ABB2014] WISE G341.283-00.353 bub 16 53 05.4 -44 28 45           ~ 9 0
17 [AAJ2015] G341.358-00.286 bub 16 53 07.5 -44 23 15           ~ 9 0
18 GAL 343.49-00.03 bub 16 59 20.8 -42 34 42           ~ 20 0
19 [ABB2014] WISE G345.486+00.399 bub 17 04 05.7 -40 43 26           ~ 8 0
20 [ABB2014] WISE G344.753-00.548 bub 17 05 44.6 -41 52 38           ~ 6 0
21 [ABB2014] WISE G345.094-00.779 bub 17 07 44.0 -41 45 31           ~ 6 0
22 [CPA2006] S8 bub 17 10 40.4 -39 16 17           ~ 7 0
23 SH 2-3 HII 17 12.4 -38 28           ~ 234 1
24 [CPA2006] S2 bub 17 16 37.4 -37 52 26           ~ 4 1
25 [ABB2014] WISE G348.249-00.971 bub 17 18 28.6 -39 18 18           ~ 5 0
26 [ABB2014] WISE G011.893+00.748 bub 18 08 52.6 -18 16 07           ~ 32 0
27 [ABB2014] WISE G013.222+00.082 bub 18 14 01.3 -17 25 38           ~ 15 1
28 [CPA2006] N14 bub 18 16 20.8 -16 50 45           ~ 27 0
29 NGC 6618 OpC 18 20 47 -16 10.3           ~ 1700 0
30 [ABB2014] WISE G019.588-00.049 bub 18 26 55.2 -11 52 32           ~ 5 0
31 [CPA2006] N37 bub 18 36 23 -06 39.6           ~ 18 0
32 [CPA2006] N39 bub 18 38 06.0 -06 48 05           ~ 9 0
33 [ABB2014] WISE G026.261+00.280 bub 18 38 13.4 -05 48 19           ~ 5 0
34 [ABB2014] WISE G028.323+00.152 bub 18 42 28.1 -04 01 50           ~ 6 0
35 [CPA2006] N47 bub 18 42 35.6 -04 22 42           ~ 8 0
36 [L89b] 28.823-00.226 bub 18 44 44.3 -03 45 34           ~ 80 0
37 [ABB2014] WISE G029.161-00.261 bub 18 45 28.8 -03 28 40           ~ 12 0
38 [ABB2014] WISE G031.138+00.285 bub 18 47 09.4 -01 27 26           ~ 12 0
39 [ABB2014] WISE G030.758-00.047 bub 18 47 31 -01 57.1           ~ 13 0
40 HRDS G032.587+00.006 bub 18 50 46.9 -00 18 25           ~ 15 2
41 [ABB2014] WISE G032.761-00.151 bub 18 51 39.5 -00 13 09           ~ 9 1
42 [ABB2014] WISE G034.333+00.212 bub 18 53 14 +01 20.8           ~ 14 1
43 [ABB2014] WISE G034.997+00.330 bub 18 54 02.0 +01 59 30           ~ 20 0
44 [ABB2014] WISE G038.353-00.135 bub 19 01 49 +04 45.7           ~ 10 0
45 GAL 038.91-00.44 bub 19 03 56.1 +05 06 53           ~ 18 0
46 [ABB2014] WISE G040.418-00.055 bub 19 05 20.1 +06 38 19           ~ 9 0
47 [ABB2014] WISE G041.226+00.167 bub 19 06 03.0 +07 27 24           ~ 9 0
48 [ABB2014] WISE G041.512+00.021 bub 19 07 03.7 +07 39 12           ~ 13 0
49 [CPA2006] N80 bub 19 07 49.7 +08 01 12           ~ 20 0
50 [ABB2014] WISE G042.834-00.157 bub 19 10 12.6 +08 43 50           ~ 8 0
51 [ABB2014] WISE G042.103-00.623 bub 19 10 30.8 +07 52 06           ~ 11 0
52 [ABB2014] WISE G043.730+00.114 bub 19 10 54.4 +09 39 21           ~ 12 0
53 [CPA2006] N88 bub 19 11 06.98 +09 05 59.6           ~ 5 0
54 [ABB2014] WISE G043.774+00.057 bub 19 11 11.1 +09 39 59           ~ 18 1
55 [ABB2014] WISE G044.775-00.549 bub 19 15 16.0 +10 16 16           ~ 6 0
56 [ABB2014] WISE G044.331-00.837 bub 19 15 28.1 +09 44 24           ~ 12 1
57 [ABB2014] WISE G047.028+00.216 bub 19 16 46.2 +12 37 20           ~ 15 1
58 [ABB2014] WISE G045.391-00.725 bub 19 17 01.2 +10 44 01           ~ 10 1
59 [ABB2014] WISE G049.201-00.365 bub 19 23 03.4 +14 16 02           ~ 7 0
60 [CPA2006] N102 bub 19 23 19 +14 48.0           ~ 6 0
61 [CPA2006] N103 bub 19 23 21 +14 48.1           ~ 3 0
62 W 51a HII 19 23 29.3 +14 31 38           ~ 186 0
63 [ABB2014] WISE G053.541-00.011 bub 19 30 24.5 +18 15 40           ~ 13 1
64 [ABB2014] WISE G054.099-00.068 bub 19 31 44.5 +18 43 15           ~ 10 0
65 [CPA2006] N124 bub 19 38 29 +22 59.6           ~ 6 0
66 [ABB2014] WISE G057.541-00.279 bub 19 39 39.5 +21 37 04           ~ 12 0
67 [AAJ2015] G059.600+00.316 bub 19 41 49.4 +23 42 17           ~ 9 0
68 [ABB2014] WISE G061.668+00.946 bub 19 43 58.0 +25 48 20           ~ 5 0
69 [ABB2014] WISE G061.756+00.846 bub 19 44 33.3 +25 50 41           ~ 4 0
70 [CPA2006] N127 bub 19 45 33.6 +24 25 19           ~ 5 0
71 [ABB2014] WISE G063.164+00.449 bub 19 49 15.6 +26 50 46           ~ 10 0
72 [CPA2006] N130 bub 19 51 14 +25 39.9           ~ 7 0
73 [CPA2006] N131 bub 19 52 21.0 +26 20 54           ~ 15 0
74 SH 2-104 HII 20 17 52.5 +36 49 24           ~ 97 0

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