2006MNRAS.367.1609B


Query : 2006MNRAS.367.1609B

2006MNRAS.367.1609B - Mon. Not. R. Astron. Soc., 367, 1609-1628 (2006/April-3)

Molecular line mapping of the giant molecular cloud associated with RCW 106 - I. 13CO.

BAINS I., WONG T., CUNNINGHAM M., SPARKS P., BRISBIN D., CALISSE P., DEMPSEY J.T., DERAGOPIAN G., ELLINGSEN S., FULTON B., HERPIN F., JONES P., KOUBA Y., KRAMER C., LADD E.F., LONGMORE S.N., McEVOY J., MALLER M., MINIER V., MOOKERJEA B., PHILLIPS C., PURCELL C.R., WALSH A., VORONKOV M.A. and BURTON M.G.

Abstract (from CDS):

We present the first paper in a series detailing the results of 13CO observations of a ∼1 deg2 region of the giant molecular cloud (GMC) complex associated with the Hii region RCW 106. The 13CO observations are also the first stage of a multimolecular line study of the same region. These observations were amongst the first made using the new on-the-fly mapping capability of the Australia Telescope National Facility Mopra Telescope. In the configuration used, the instrument provided a full width at half-maximum (FWHM) beam size of 33 arcsec and a velocity resolution of 0.17 km/s. The gas emission takes the form of a string of knots, oriented along an axis that extends from the north-west (NW) to the south-east (SE) of the field of the observations, and which is surrounded by a more extended, diffuse emission. We analyse the 2D integrated 13CO emission using the clumpfind algorithm and identify 61 clumps. We compare the gas data in the GMC with the dust data provided by 21-µm Midcourse Space Experiment (MSX) and 1.2-mm Swedish European Southern Observatory Submillimetre Telescope (SEST) images that we both regridded to the cell spacing of the Mopra data and smoothed to the same resolution. The 13CO emission is more diffuse and extended than the dust emission revealed at the latter two wavebands, which both have a much higher contrast between the peaks and the extended emission. From comparison of their centre positions, we find that only ∼50 per cent of the 13CO clump fits to the data are associated with any dust clumps. Using the clump fits, the total local thermodynamic equilibrium gas mass above the 3σ level measured from the molecular data is 2.7x105M, whereas that measured from the smoothed 1.2-mm SEST dust data is 2.2x105M.

Abstract Copyright: 2006 The Authors. Journal compilation © 2006 RAS

Journal keyword(s): stars: formation - ISM: clouds - ISM: dust, extinction - ISM: molecules - ISM: structure - radio lines: ISM

VizieR on-line data: <Available at CDS (J/MNRAS/367/1609): table1.dat table2.dat table3.dat>

Nomenclature: Table 1: [BWC2006] 13CO NN (Nos 1-61). Table 3: [BWC2006] mm NNN N=105 among (Nos 1-138).

Status at CDS : All or part of tables of objects will not be ingested in SIMBAD.

Simbad objects: 14

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Number of rows : 14
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 Orion-KL SFR 05 35 14.16 -05 22 21.5           ~ 2098 1
2 IRAS 15408-5413 LP* 15 44 39.7993426406 -54 23 04.979917337           M7+ 20 0
3 GAL 332.66-00.61 bub 16 19 45.3 -51 02 48           ~ 37 0
4 GAL 332.80-00.60 HII 16 19 47 -51 04.1           ~ 92 1
5 IRAS 16164-5046 HII 16 20 14.1 -50 53 20           ~ 27 0
6 GAL 333.0-00.4 HII 16 20 38.2 -50 40 21           ~ 20 0
7 NAME RCW 106 GMC MoC 16 21.0 -50 30           ~ 36 0
8 IRAS 16172-5028 HII 16 21 00.4 -50 35 21           ~ 35 0
9 IRAS 16177-5018 HII 16 21 31.4 -50 25 04           ~ 31 0
10 GAL 333.6-00.2 HII 16 22 11 -50 05.6           ~ 143 0
11 V* AH Sco s*r 17 11 17.0228220330 -32 19 30.723257250   10.03 8.10     M5Ia-Iab 125 0
12 NAME Galactic Center gam 17 45 39.60213 -29 00 22.0000           ~ 12390 0
13 NGC 6618 OpC 18 20 47 -16 10.3           ~ 1526 0
14 NAME Galactic Molecular Ring PoG ~ ~           ~ 40 0

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2021.09.25-01:46:25

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