1999ApJ...517..282H


Query : 1999ApJ...517..282H

1999ApJ...517..282H - Astrophys. J., 517, 282-291 (1999/May-3)

Atomic carbon observations of southern hemisphere H II regions.

HUANG M., BANIA T.M., BOLATTO A., CHAMBERLIN R.A., INGALLS J.G., JACKSON J.M., LANE A.P., STARK A.A., WILSON R.W. and WRIGHT G.A.

Abstract (from CDS):

We report observations of atomic carbon (C I [3P13P0]) for a sample of 49 southern hemisphere H II regions using the Antarctic Submillimeter Telescope and Remote Observatory. The sources are compact and isolated members of the Wilson et al. H109α radio recombination line (RRL) catalog. The fourth Galactic quadrant is well covered by the sample. Atomic carbon emission is detected toward all of the regions, with multiple C I emission components found toward most sources. The RRL velocity is used to identify the C I emission associated with the H II region. We measure the mean velocity difference between the C I and RRL emission to be 0.8±2.8 km.s–1. Within the measurement errors this is exact agreement in velocity; we conclude that all H II regions have associated C I emission. The mean C I line temperature of these components is 2.4±1.8 K, compared with 0.7±0.7 K for the C I emission components not associated with the H II region. This suggests that C I intensity is dominated by local heating. The FWHM line width of C I gas associated with H II regions also is marginally greater than that found for unassociated gas (6.7±3.0, compared with 4.8±2.4 km.s–1).

Abstract Copyright:

Journal keyword(s): ISM: H II Regions - ISM: Atoms - ISM: Molecules

VizieR on-line data: <Available at CDS (J/ApJ/517/282): table1.dat>

Nomenclature: Table 1: [HBB99] LLL.lll+B.bbb N=49.

Simbad objects: 49

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Number of rows : 49
N Identifier Otype ICRS (J2000)
RA
ICRS (J2000)
DEC
Mag U Mag B Mag V Mag R Mag I Sp type #ref
1850 - 2023
#notes
1 RCW 38 SFR 08 59 05.50 -47 30 39.4           ~ 297 2
2 PMN J0859-4345 HII 08 59 26.6 -43 45 20           ~ 7 0
3 GAL 285.3-00.0 HII 10 31 29.3 -58 02 08           ~ 15 0
4 [HBB99] 287.259-0.883 HII 10 41 45.1 -59 44 54           ~ 3 0
5 [HBB99] 287.718-0.646 HII 10 45 51.1 -59 45 18           ~ 3 0
6 [HBB99] 287.906-0.939 HII 10 46 05.5 -60 06 06           ~ 5 0
7 GAL 291.3-00.7 HII 11 11 52.9 -61 18 55           ~ 10 0
8 GAL 291.6-00.5 HII 11 15 02.4 -61 15 46           ~ 12 0
9 [GS70] 298.2-00.3 HII 12 10 01.886 -62 50 00.46           ~ 66 1
10 [HBB99] 298.837-0.347 HII 12 15 19.9 -62 55 52           ~ 8 0
11 GAL 298.9-00.4 HII 12 15 25.6 -63 01 28           ~ 15 0
12 GAL 305.10+00.14 HII 13 10 17.5 -62 38 34           ~ 10 0
13 PMN J1311-6245 HII 13 11 15.4 -62 45 08           ~ 7 0
14 GAL 305.20+00.2 bub 13 11 35.1 -62 33 26           ~ 39 0
15 GAL 305.4+00.2 HII 13 12 32.9 -62 34 43           ~ 10 0
16 GAL 305.6+00.0 HII 13 14 20.0 -62 44 46           ~ 7 0
17 GAL 316.8-00.1 HII 14 45 19.4 -59 49 32           ~ 19 0
18 GAL 322.16+00.62 HII 15 18 39.1 -56 38 49           ~ 29 0
19 GRS G326.70 +00.60 HII 15 44 45.7 -54 06 37           ~ 8 0
20 RCW 97 HII 15 53 05.0 -54 35 24           ~ 152 0
21 IRAS 15502-5302 HII 15 54 07.2 -53 11 20           ~ 45 0
22 GAL 331.5-00.1 HII 16 12 09.8 -51 27 06           ~ 29 0
23 GAL 333.2-00.1 HII 16 19 42.4 -50 19 30           ~ 8 0
24 GAL 332.66-00.61 bub 16 19 45.3 -51 02 48           ~ 37 0
25 GAL 332.8-00.6 HII 16 20 12.8 -50 54 28           ~ 13 0
26 GAL 333.0-00.4 HII 16 20 38.2 -50 40 21           ~ 20 0
27 GAL 333.1-00.4 Cl* 16 21 03.3 -50 36 19           ~ 31 1
28 GAL 333.3-00.4 HII 16 21 31.7 -50 26 23           ~ 20 0
29 GAL 333.6-00.1 HII 16 21 33 -50 01.4           ~ 10 0
30 GAL 333.6-00.2 HII 16 22 11 -50 05.6           ~ 144 0
31 PMN J1634-4805 HII 16 34 15.8 -48 05 20           ~ 7 0
32 [HBB99] 336.532-0.168 HII 16 34 19.5 -47 57 20           ~ 4 0
33 [HBB99] 336.807+0.043 HII 16 34 30.6 -47 36 37           ~ 3 0
34 [HBB99] 336.934-0.146 HII 16 35 48 -47 40.0           ~ 7 0
35 GAL 337.1-00.2 HII 16 36 42.7 -47 31 22           ~ 10 0
36 [HBB99] 337.753+0.126 HII 16 37 54.4 -46 51 17           ~ 3 0
37 GAL 338.4+00.1 HII 16 40 49.2 -46 24 05           ~ 19 0
38 GRS G337.90 -00.50 HII 16 41 08.3 -47 07 22           ~ 42 0
39 RCW 110B HII 16 54 17.2 -45 17 03           ~ 10 0
40 GAL 343.49-00.03 bub 16 59 20.8 -42 34 42           ~ 20 0
41 GAL 345.4+01.4 HII 16 59 38.0 -40 11 28           ~ 5 0
42 [ABB2014] WISE G345.202+01.027 HII 17 00 37.8 -40 33 42           ~ 5 0
43 GAL 347.6+00.2 HII 17 11 33.8 -39 08 20           ~ 21 0
44 BFS 65 HII 17 20 05.8 -38 57 37           ~ 76 0
45 [HBB99] 351.347+0.663 HII 17 20 37.3 -35 49 53           ~ 3 0
46 [HBB99] 351.419+0.644 HII 17 20 54.1 -35 46 57           ~ 1 0
47 [HBB99] 353.191+0.890 HII 17 24 48.4 -34 10 58           ~ 4 0
48 [HBB99] 353.122+0.642 HII 17 25 36.9 -34 22 43           ~ 3 0
49 [HBB99] 006.528+0.076 HII 18 00 07.5 -23 16 35           ~ 4 0

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2023.02.06-07:56:36

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