2011ApJ...730..102L

Query : 2011ApJ...730..102L

2011ApJ...730..102L - Astrophys. J., 730, 102 (2011/April-1)

Infall and outflow motions in the high-mass star-forming complex G9.62+0.19.

LIU T., WU Y., LIU S.-Y., QIN S.-L., SU Y.-N., CHEN H.-R. and REN Z.

Abstract (from CDS):

We present the results of a high-resolution study with the Submillimeter Array toward the massive star-forming complex G9.62+0.19. Three submillimeter cores are detected in this region. The masses are 13, 30, and 165 M☉ for the northern, middle, and southern dust cores, respectively. Infall motions are found with HCN (4-3) and CS (7-6) lines at the middle core (G9.62+0.19 E). The infall rate is 4.3x10–3 M☉/yr. In the southern core, a bipolar outflow with a total mass about 26 M☉ and a mass-loss rate of 3.6x10–5 M☉/yr is revealed in SO (87-77) line wing emission. CS (7-6) and HCN (4-3) lines trace higher velocity gas than SO (87-77). G9.62+0.19 F is confirmed to be the driving source of the outflow. We also analyze the abundances of CS, SO, and HCN along the redshifted outflow lobes. The mass-velocity diagrams of the outflow lobes can be well fitted by a single power law. The evolutionary sequence of the centimeter/millimeter cores in this region is also analyzed. The results support that ultracompact H II regions have a higher blue excess than their precursors.

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Journal keyword(s): ISM: individual: G9.62+0.19 - ISM: kinematics and dynamics - ISM: molecules - stars: formation - stars: pre-main sequence

Simbad objects: 21

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Number of rows : 21
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 Ori A MoC 05 38 -07.1           ~ 3187 0
2 NGC 2071 RNe 05 47 10 +00 18.0           ~ 661 1
3 QSO B1741-038 Bla 17 43 58.85613537 -03 50 04.6167326     20.40 17.98   ~ 583 1
4 GAL 009.62+00.19 HII 18 06 13.9 -20 31 44           ~ 226 0
5 [GRM93] G09.61+0.20 B Rad 18 06 14.1 -20 31 43           ~ 19 0
6 [PTR2003] c7 IR 18 06 14.34 -20 31 25.0           ~ 2 0
7 [GRM93] G09.61+0.20 C HII 18 06 14.4 -20 31 25           ~ 19 0
8 [PTR2003] c8 IR 18 06 14.42 -20 31 27.4           ~ 2 0
9 [GRM93] G09.61+0.20 E HII 18 06 14.7 -20 31 32           ~ 51 0
10 [GRM93] G09.61+0.20 F1 Rad 18 06 14.78 -20 31 40.5           ~ 3 0
11 [GRM93] G09.61+0.20 G Rad 18 06 14.805 -20 31 37.17           ~ 10 0
12 [GRM93] G09.61+0.20 F4 Rad 18 06 14.85 -20 31 39.7           ~ 4 0
13 [GRM93] G09.61+0.20 F2 * 18 06 14.87 -20 31 39.5           ~ 3 0
14 [GRM93] G09.61+0.20 F3 Rad 18 06 14.87 -20 31 38.4           ~ 3 0
15 [GRM93] G09.61+0.20 F Rad 18 06 14.89 -20 31 38.9           ~ 29 1
16 [GRM93] G09.61+0.20 D HII 18 06 14.9 -20 31 43           ~ 20 0
17 [GRM93] G09.61+0.20 H Rad 18 06 15.047 -20 31 36.72           ~ 8 0
18 [GRM93] G09.61+0.20 I Rad 18 06 15.172 -20 31 37.97           ~ 7 0
19 AGAL G025.382-00.147 Y*O 18 38 08.167 -06 46 53.19           ~ 26 0
20 QSO B1908-202 Bla 19 11 09.65289294 -20 06 55.1090664   18.21   18.14   ~ 306 1
21 IRAS 20126+4104 Y*O 20 14 25.8816769656 +41 13 36.879427236           B2.5-B0.5 469 0

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