2000ApJ...533..271S


Query : 2000ApJ...533..271S

2000ApJ...533..271S - Astrophys. J., 533, 271-280 (2000/April-2)

VLA OH and H I Zeeman observations of the NGC 6334 complex.

SARMA A.P., TROLAND T.H., ROBERTS D.A. and CRUTCHER R.M.

Abstract (from CDS):

We present OH and H I Zeeman observations of the NGC 6334 complex taken with the Very Large Array. The OH absorption profiles associated with the complex are relatively narrow (ΔvFWHM∼3 km.s–1) and single-peaked over most of the sources. The H I absorption profiles contain several blended velocity components. One of the compact continuum sources in the complex (source A) has a bipolar morphology. The OH absorption profiles toward this source display a gradient in velocity from the northern continuum lobe to the southern continuum lobe; this velocity gradient likely indicates a bipolar outflow of molecular gas from the central regions to the northern and southern lobes. Magnetic fields of the order of 200 µG have been detected toward three discrete continuum sources in the complex. Virial estimates suggest that the detected magnetic fields in these sources are of the same order as the critical magnetic fields required to support the molecular clouds associated with the sources against gravitational collapse.

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Journal keyword(s): ISM: H II Regions - ISM: Clouds - ISM: individual (NGC 6334) - ISM: Kinematics and Dynamics - ISM: Magnetic Fields - ISM: Molecules

Simbad objects: 11

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Number of rows : 11
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 NGC 6334-VI Cl* 17 19 59 -36 09.7           ~ 6 0
2 NAME NGC 6334-IV Cl* 17 20 17 -35 54.9           ~ 48 1
3 NGC 6334A HII 17 20 19.3 -35 54 55           ~ 123 0
4 NGC 6334B rG 17 20 21.810 -35 52 48.25           ~ 113 0
5 GAL 351.31+00.6 HII 17 20 31 -35 51.6           ~ 46 0
6 2MASS J17204345-3549172 Y*O 17 20 43.457 -35 49 17.23           ~ 8 0
7 NGC 6334D HII 17 20 44.2 -35 49 18           ~ 38 0
8 NAME NGC 6334-II Cl* 17 20 45 -35 49.4           ~ 31 1
9 NGC 6334E HII 17 20 50.9 -35 46 06           ~ 52 0
10 NGC 6334 HII 17 20 53 -36 07.9           ~ 740 0
11 NAME NGC 6334F (C) HII 17 20 53.45 -35 47 02.6           ~ 244 1

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