Abstract
view Abstract Citations (25) References (24) Co-Reads Similar Papers Volume Content Graphics Metrics Export Citation NASA/ADS Magnetic Fields in the Orion Molecular Cloud from the Zeeman Effect in so Clark, F. O. ; Johnson, D. R. Abstract Reported line widths of observed emission features from a variety of interstellar molecules are compared for the Orion A molecular cloud. All of the excess width observed for SO in Orion A is assumed to be due to Zeeman splitting of the energy levels in order to obtain an estimate of the upper limit for the ambient magnetic field in this source. From the available data, upper limit estimates yield a most probable value near 6 gauss for the magnetic field in the central feature of Orion A. This estimate can possibly be reduced by a factor of 2 or 3 if other effects such as kinematics are responsible for a portion of the observed widths. The implications of a field of this magnitude in a dense molecular cloud are discussed. Subject headings: magnetic fields - molecules, interstellar - Orion Nebula - Zeeman effect Publication: The Astrophysical Journal Pub Date: July 1974 DOI: 10.1086/181556 Bibcode: 1974ApJ...191L..87C full text sources ADS |
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