2014A&A...570A.109V


C.D.S. - SIMBAD4 rel 1.7 - 2019.10.19CEST05:04:13

2014A&A...570A.109V - Astronomy and Astrophysics, volume 570A, 109-109 (2014/10-1)

Molecular gas associated with IRAS 10361-5830.

VAZZANO M.M., CAPPA C.E., VASQUEZ J., RUBIO M. and ROMERO G.A.

Abstract (from CDS):

We analyze the distribution of the molecular gas and dust in the molecular clump linked to IRAS 10361-5830, located in the environs of the bubble-shaped HII region Gum 31 in the Carina region, with the aim of determining the main parameters of the associated material and of investigating the evolutionary state of the young stellar objects identified there. Using the APEX telescope, we mapped the molecular emission in the J=3-2 transition of three CO isotopologues, 12CO, 13CO and C18O, over a 1.5'x1.5' region around the IRAS position. We also observed the high-density tracers CS and HCO+ toward the source. The cold- dust distribution was analyzed using submillimeter continuum data at 870µm obtained with the APEX telescope. Complementary IR and radio data at different wavelengths were used to complete the study of the interstellar medium. The molecular gas distribution reveals a cavity and a shell-like structure of ∼0.32pc in radius centered at the position of the IRAS source, with some young stellar objects projected onto the cavity. The total molecular mass in the shell and the mean H2volume density are ∼40M and ~(1-2)x103cm–3. The cold-dust counterpart of the molecular shell has been detected in the far-IR at 870µm and in Herschel data at 350µm. Weak extended emission at 24µm from warm dust is projected onto the cavity, as well as weak radio continuum emission. A comparison of the distribution of cold and warm dust, and molecular and ionized gas allows us to conclude that a compact HII region has developed in the molecular clump, indicating that this is an area of recent massive star formation. Probable exciting sources capable of creating the compact HII region are investigated. The 2MASS source 10380461-5846233 (MSXG286.3773-00.2563) seems to be responsible for the formation of the HII region.

Abstract Copyright:

Journal keyword(s): ISM: molecules - stars: protostars - HII regions - ISM: individual objects: IRAS 10361-5830

VizieR on-line data: <Available at CDS (J/A+A/570/A109): list.dat fits/*>

Nomenclature: Table 5: [VCV2014] DN (Nos D1-D4).

Simbad objects: 31

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Number of rows : 31

N Identifier Otype ICRS (J2000)
RA
ICRS (J2000)
DEC
Mag U Mag B Mag V Mag R Mag I Sp type #ref
1850 - 2019
#notes
1 V* VY CMa s*r 07 22 58.32877 -25 46 03.2355 12.01 10.19 7.95     M5Iae 984 0
2 RAFGL 5254 C* 09 13 53.9380628049 -24 51 25.223261483           C-rich 48 0
3 NAME Car Arm PoG 10 00 -60.0           ~ 367 1
4 NGC 3324 OpC 10 37 20 -58 38.5   6.91 6.7     ~ 99 1
5 IC 2599 HII 10 37.7 -58 39           ~ 33 2
6 2MASS J10374905-5847500 Y*O 10 37 49.0610250104 -58 47 50.073188804           ~ 5 0
7 2MASS J10375219-5847133 Y*? 10 37 52.1986117104 -58 47 13.301893317           ~ 4 0
8 [VCV2014] D2 MoC 10 37 54.107 -58 46 14.37           ~ 2 0
9 [BYF2011] 77b MoC 10 37 54.5 -58 46 18           ~ 5 0
10 [OPG2013] J103758.4-584648 Y*O 10 37 58.4 -58 46 48           ~ 2 0
11 [VCV2014] D1 MoC 10 37 59.990 -58 46 43.55           ~ 2 0
12 Ass Car OB 1 As* 10 38 -59.0           ~ 136 0
13 [OPG2013] J103800.7-584654 Y*O 10 38 00.7 -58 46 54           ~ 2 0
14 AKARI-IRC-V1 J1038018-584641 HII 10 38 01.8165685778 -58 46 41.761855788           ~ 5 0
15 2MASS J10380371-5846118 * 10 38 03.7029489032 -58 46 11.673019185           ~ 2 0
16 [CNA2008] 9 Y*? 10 38 03.8 -58 46 19           ~ 9 0
17 WISE J103804.58-584620.9 IR 10 38 04.58 -58 46 20.9           ~ 1 0
18 [CNA2008] 21 Y*O 10 38 04.6 -58 46 26           ~ 5 0
19 2MASS J10380461-5846233 * 10 38 04.6217128384 -58 46 23.229683184           ~ 1 0
20 [VCV2014] D4 MoC 10 38 05.240 -58 45 12.04           ~ 1 0
21 [BYF2011] 77 MoC 10 38 05.6 -58 44 55           ~ 2 0
22 [OPG2013] J103805.8-584542 Y*O 10 38 05.8 -58 45 42           ~ 2 0
23 2MASS J10380616-5846183 * 10 38 06.1734272504 -58 46 18.343292036           ~ 2 0
24 [OPG2013] J103807.2-584512 Y*O 10 38 07.2 -58 45 12           ~ 2 0
25 [BYF2011] 77c MoC 10 38 07.3 -58 45 47           ~ 6 0
26 [VCV2014] D3 MoC 10 38 09.392 -58 45 32.22           ~ 2 0
27 [OPG2013] J103810.2-584527 Y*O 10 38 10.2 -58 45 27           ~ 2 0
28 2MASS J10381461-5844416 Y*? 10 38 14.6238092052 -58 44 41.674553721           ~ 2 0
29 RAFGL 4211 C* 15 11 41.4387312231 -48 19 58.763122448           C-rich 46 0
30 V* X TrA C* 15 14 19.1744832785 -70 04 46.126632480 15.88 9.19 5.81     C5,5 104 0
31 NAME Carina Region reg ~ ~           ~ 145 0

    Equat.    Gal    SGal    Ecl

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2019.10.19-05:04:13

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