Detection of the CN Zeeman effect in molecular clouds

Richard M. Crutcher; Thomas H. Troland; Bernard Lazareff; Gabriel Paubert; Ilya Kazès

doi:10.1086/311952

Detection of the CN Zeeman effect in molecular clouds

Richard M. Crutcher, Thomas H. Troland, Bernard Lazareff, Gabriel Paubert, Ilya Kazès

Physics And Astronomy

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108 Scopus citations

Abstract

Observations of the Zeeman effect in the 3 mm lines of CN have been carried out with the 30 m IRAM telescope toward seven dense molecular clouds. Detections were achieved toward the Orion Molecular Cloud 1 (OMC1), toward two cores in the DR21OH molecular cloud, and probably toward the M17SW molecular cloud. The line-of-sight magnetic field strengths inferred are B_los(OMC1) = -0.36 ± 0.08, B_los(DR21OH₁) = -0.36 ± 0.10, Bl_os(DR21OH₂) = -0.71 ± 0.12, and Bl_os(M17SW) = -0.33 ± 0.14 mG. The theoretical implications of these results are discussed.

Original language	English
Pages (from-to)	L121-L124
Journal	Astrophysical Journal
Volume	514
Issue number	2 PART 2
DOIs	https://doi.org/10.1086/311952
State	Published - Apr 1 1999

Bibliographical note

Funding Information:
This research has been supported in part by the National Science Foundation under grants AST 94-19220 and AST 94-19227.

Funding

This research has been supported in part by the National Science Foundation under grants AST 94-19220 and AST 94-19227.

Funders	Funder number
National Science Foundation (NSF)	AST 94-19220, AST 94-19227

Keywords

ISM: clouds
ISM: magnetic fields
Stars: formation

ASJC Scopus subject areas

Astronomy and Astrophysics
Space and Planetary Science

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10.1086/311952

Cite this

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title = "Detection of the CN Zeeman effect in molecular clouds",

abstract = "Observations of the Zeeman effect in the 3 mm lines of CN have been carried out with the 30 m IRAM telescope toward seven dense molecular clouds. Detections were achieved toward the Orion Molecular Cloud 1 (OMC1), toward two cores in the DR21OH molecular cloud, and probably toward the M17SW molecular cloud. The line-of-sight magnetic field strengths inferred are Blos(OMC1) = -0.36 ± 0.08, Blos(DR21OH1) = -0.36 ± 0.10, Blos(DR21OH2) = -0.71 ± 0.12, and Blos(M17SW) = -0.33 ± 0.14 mG. The theoretical implications of these results are discussed.",

keywords = "ISM: clouds, ISM: magnetic fields, Stars: formation",

author = "Crutcher, {Richard M.} and Troland, {Thomas H.} and Bernard Lazareff and Gabriel Paubert and Ilya Kaz{\`e}s",

note = "Funding Information: This research has been supported in part by the National Science Foundation under grants AST 94-19220 and AST 94-19227.",

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doi = "10.1086/311952",

language = "English",

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TY - JOUR

T1 - Detection of the CN Zeeman effect in molecular clouds

AU - Crutcher, Richard M.

AU - Troland, Thomas H.

AU - Lazareff, Bernard

AU - Paubert, Gabriel

AU - Kazès, Ilya

N1 - Funding Information: This research has been supported in part by the National Science Foundation under grants AST 94-19220 and AST 94-19227.

PY - 1999/4/1

Y1 - 1999/4/1

N2 - Observations of the Zeeman effect in the 3 mm lines of CN have been carried out with the 30 m IRAM telescope toward seven dense molecular clouds. Detections were achieved toward the Orion Molecular Cloud 1 (OMC1), toward two cores in the DR21OH molecular cloud, and probably toward the M17SW molecular cloud. The line-of-sight magnetic field strengths inferred are Blos(OMC1) = -0.36 ± 0.08, Blos(DR21OH1) = -0.36 ± 0.10, Blos(DR21OH2) = -0.71 ± 0.12, and Blos(M17SW) = -0.33 ± 0.14 mG. The theoretical implications of these results are discussed.

AB - Observations of the Zeeman effect in the 3 mm lines of CN have been carried out with the 30 m IRAM telescope toward seven dense molecular clouds. Detections were achieved toward the Orion Molecular Cloud 1 (OMC1), toward two cores in the DR21OH molecular cloud, and probably toward the M17SW molecular cloud. The line-of-sight magnetic field strengths inferred are Blos(OMC1) = -0.36 ± 0.08, Blos(DR21OH1) = -0.36 ± 0.10, Blos(DR21OH2) = -0.71 ± 0.12, and Blos(M17SW) = -0.33 ± 0.14 mG. The theoretical implications of these results are discussed.

KW - ISM: clouds

KW - ISM: magnetic fields

KW - Stars: formation

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UR - http://www.scopus.com/inward/citedby.url?scp=0033112404&partnerID=8YFLogxK

U2 - 10.1086/311952

DO - 10.1086/311952

M3 - Article

AN - SCOPUS:0033112404

SN - 0004-637X

VL - 514

SP - L121-L124

JO - Astrophysical Journal

JF - Astrophysical Journal

IS - 2 PART 2

ER -

Detection of the CN Zeeman effect in molecular clouds

Abstract

Bibliographical note

Funding

Keywords

ASJC Scopus subject areas

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