2019A&A...621A.130L


Query : 2019A&A...621A.130L

2019A&A...621A.130L - Astronomy and Astrophysics, volume 621A, 130-130 (2019/1-1)

Characterising the high-mass star forming filament G351.776-0.527 with Herschel and APEX dust continuum and gas observations.

LEURINI S., SCHISANO E., PILLAI T., GIANNETTI A., URQUHART J., CSENGERI T., CASU S., CUNNINGHAM M., ELIA D., JONES P.A., KONIG C., MOLINARI S., STANKE T., TESTI L., WYROWSKI F. and MENTEN K.M.

Abstract (from CDS):

G351.776-0.527 is among the most massive, closest, and youngest filaments in the inner Galactic plane and therefore it is an ideal laboratory to study the kinematics of dense gas and mass replenishment on a large scale. In this paper, we present far-infrared and submillimetre wavelength continuum observations combined with spectroscopic C18O (2-1) data of the entire region to study its temperature, mass distribution, and kinematics. The structure is composed of a main elongated region with an aspect ratio of ∼23, which is associated with a network of filamentary structures. The main filament has a remarkably constant width of 0.2pc. The total mass of the network (including the main filament) is ≥2600M, while we estimate a mass of ∼2000M for the main structure. Therefore, the network harbours a large reservoir of gas and dust that could still be accreted onto the main structure. From the analysis of the gas kinematics, we detect two velocity components in the northern part of the main filament. The data also reveal velocity oscillations in C18O along the spine in the main filament and in at least one of the branches. Considering the region as a single structure, we find that it is globally close to virial equilibrium indicating that the entire structure is approximately in a stable state.

Abstract Copyright: © ESO 2019

Journal keyword(s): ISM: kinematics and dynamics - ISM: clouds - stars: formation

CDS comments: Paragraph 3.2 G45.1 not identified.

Simbad objects: 20

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Number of rows : 20
N Identifier Otype ICRS (J2000)
RA
ICRS (J2000)
DEC
Mag U Mag B Mag V Mag R Mag I Sp type #ref
1850 - 2022
#notes
1 LDN 1571 MoC 05 10.8 +10 34           ~ 8 0
2 NAME Mon OB1 C PoC 06 41 11 +09 29.1           ~ 52 1
3 WOS 48 C* 15 23 05.0730770544 -51 25 58.762691652   17.85 16.66 14.51 10.18 C 126 1
4 IRAS 16293-2422 cor 16 32 22.56 -24 28 31.8           ~ 1171 1
5 NGC 6302 PN 17 13 44.339 -37 06 10.95   7.1 10.10     ~ 776 1
6 NGC 6334 HII 17 20 51 -36 06.9           ~ 642 0
7 [LPS2011b] Clump-11 smm 17 25 31.970 -36 21 21.05           ~ 2 0
8 MSXDC G351.64-0.46 Cld 17 26.0 -36 13           ~ 1 0
9 [LPS2011b] Clump-6 smm 17 26 23.250 -36 04 32.74           ~ 2 0
10 [LPS2011b] Clump-5 smm 17 26 25.250 -36 04 57.03           ~ 4 0
11 [LPS2011b] Clump-8 smm 17 26 28.260 -36 05 21.34           ~ 2 0
12 [LPS2011b] Clump-7 smm 17 26 34.780 -36 06 34.22           ~ 5 0
13 [LUL2016] G351.776 -0.527 smm 17 26 35 -36 09.5           ~ 3 0
14 MSXDC G351.77-0.51 Cld 17 26 36 -36 08.7           ~ 11 0
15 [LPS2011b] Clump-2 smm 17 26 38.790 -36 08 05.53           ~ 4 0
16 [LPS2011b] Clump-1 smm 17 26 42.300 -36 09 18.23           ~ 3 0
17 IRAS 17233-3606 HII 17 26 42.8 -36 09 17           ~ 77 0
18 [LPS2011b] Clump-3 smm 17 26 47.330 -36 12 14.37           ~ 3 0
19 NAME Serpens Cloud SFR 18 29 49 +01 14.8           ~ 1021 2
20 GRS G081.70 +00.50 SFR 20 39 01.6 +42 19 38           O4.5 1005 0

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2022.08.10-20:21:27

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