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1-MILLIMETER observations of the galactic H II regions M42 and DR 21

Ade, Peter A. R., Clegg, Peter E. and Rather, John D. G. 1974. 1-MILLIMETER observations of the galactic H II regions M42 and DR 21. Astrophysical Journal 189 , L23-L26. 10.1086/181455

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We have made measurements of the 1. mm fluxes from the Galactic H n regions DR 21 and the'Orion Nebula. Measurements at 350 have been used in the interpretation of these data. A crude mapping of the Onoji Nebula leads to an optically thin thermal model consisting of a 70 K, 1 arc min source set on a more extended region, 3 arc min in diameter, at a temperature of 30 K. A measured flux density of 32 8 f.u. from DR 21 confirms the excess emission reported at 350 and gives a mean spectral index of -3.1 for the spectral region 350 I.4 mm.

Item Type: Article
Date Type: Publication
Status: Published
Schools: Physics and Astronomy
Subjects: Q Science > QB Astronomy
Uncontrolled Keywords: infrared sources - Orion Nebula
Publisher: IOP Science
ISSN: 0004-637X
Last Modified: 04 Jun 2017 06:38

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