Radio Continuum Structure of the Orion Nebula | Zendy

R. Subrahmanyan | Zendy; W. M. Goss | Zendy; D. F. Malin | Zendy

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Radio Continuum Structure of the Orion Nebula

Author(s) -

R. Subrahmanyan,

W. M. Goss,

D. F. Malin

Publication year - 2001

Publication title -

the astronomical journal

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 2.61

H-Index - 271

eISSN - 1538-3881

pISSN - 0004-6256

DOI - 10.1086/318017

Subject(s) - physics , astrophysics , surface brightness , astronomy , brightness , halo , nebula , h ii region , emission nebula , reflection nebula , galaxy , star formation , stars

Restricted Access.We have imaged the large-scale radio continuum structure in the Orion region with the Very Large Array at 330 MHz. Arcminute-resolution morphology of the extended emission in the H II regions M42 and M43 (NGC 1976 and NGC 1982) and in the NGC 1973-75-77 nebulosity to the north are presented. A low surface brightness thermal radio halo is detected in the H II region M42: comparison with an optical photograph indicates that the radio emission distinguishes optical emission structures from reflection nebulosities. In NGC 1977 we have discovered a compact, steep-spectrum radio source coincident with a bright optical rim

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