2023ApJ...954...99Z

Query : 2023ApJ...954...99Z

2023ApJ...954...99Z - Astrophys. J., 954, 99 (2023/September-1)

Submillimeter Observations of Magnetic Fields in Massive Star-forming Region W75N.

ZENG L., ZHANG Q., ALVES F.O., CHING T.-C., GIRART J.M. and LIU J.

Abstract (from CDS):

This paper presents the results of full polarization observations of the massive star-forming region W75N, conducted with ∼3″ spatial resolutions at 345 GHz using the Submillimeter Array. The magnetic field structures in the dense cores of the region are derived using the linearly polarized continuum emission. The overall magnetic field strength and orientation are found to agree with those from the previous observations. The plane-of-sky component of the magnetic field in the region was calculated to be ∼0.8 ± 0.1 mG using the angular dispersion function method. Further analyses involving the polarization-intensity gradient-local gravity method and H13CO+ (4-3) line data indicated that the cloud is undergoing global gravitational collapse and the magnetic field is shaped by gravity and outflows in the dense core regions.

Abstract Copyright: © 2023. The Author(s). Published by the American Astronomical Society.

Journal keyword(s): Circumstellar matter - Interstellar medium - Magnetic fields - Star formation

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 - 2026 		#notes
1 NGC 1275 Bla 03 19 48.1599902040 +41 30 42.108850836   13.10 12.48 11.09   ~ 4243 3
2 3C 279 Bla 12 56 11.16657958 -05 47 21.5251510   18.01 17.75 15.87   ~ 3205 2
3 NAME Cyg X Cld 20 30 04.7973633 +40 51 36.002197           ~ 962 1
4 EM* MWC 349A Or* 20 32 45.5291969760 +40 39 36.651807828           ~ 180 0
5 NAME Cyg X FIR 33 Y*O 20 38 35.9 +42 37 22           B1.5 423 1
6 [S2001] MM 2 mm 20 38 35.92 +42 37 32.1           ~ 14 0
7 [S2001] MM 4 mm 20 38 36.30 +42 37 29.9           ~ 5 0
8 [S2001] MM 1 mm 20 38 36.39 +42 37 34.1           ~ 17 0
9 NAME W75N(B) cor 20 38 36.44 +42 37 34.1           ~ 52 0
10 [HRB81] W75N(Ba) HII 20 38 36.445 +42 37 34.82           ~ 55 0
11 [TGR97] VLA 2 HII 20 38 36.482 +42 37 34.08           ~ 63 0
12 [HRB81] W75N(Bb) HII 20 38 36.486 +42 37 33.44           ~ 38 0
13 [HRB81] W75N(Bc) Rad 20 38 36.533 +42 37 32.04           ~ 10 0
14 [TGR97] VLA 4 Rad 20 38 36.535 +42 37 30.03           ~ 6 0
15 [DKS2007] W75N-IRS 1 IR 20 38 36.76 +42 37 29.4           ~ 17 0
16 [S2001] MM 3 mm 20 38 37.05 +42 37 37.4           ~ 14 0
17 [HRB81] W75N(A) HII 20 38 37.6 +42 38 00           ~ 10 0
18 [S2001] MM 9 mm 20 38 38.70 +42 38 19.8           ~ 3 0
19 [HRB81] W75N(C) HII 20 38 39.1 +42 36 51           ~ 8 0
20 DR 21 SFR 20 39 01.6 +42 19 38           O4.5 1121 0

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