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High Spatial Resolution Studies of H13CN, H12CN and HCO+ J = 1-0 Emissions in Orion A

Published online by Cambridge University Press:  14 August 2015

O.E.H. Rydbeck ,
Å. Hjalmarson ,
G. Rydbeck ,
J. Elldér ,
A. Sume  and
S. Lidholm
O.E.H. Rydbeck
Affiliation:
Onsala Space Observatory, S-430 34 Onsala, Sweden
Å. Hjalmarson
Affiliation:
Onsala Space Observatory, S-430 34 Onsala, Sweden
G. Rydbeck
Affiliation:
Onsala Space Observatory, S-430 34 Onsala, Sweden
J. Elldér
Affiliation:
Onsala Space Observatory, S-430 34 Onsala, Sweden
A. Sume
Affiliation:
Onsala Space Observatory, S-430 34 Onsala, Sweden
S. Lidholm
Affiliation:
Onsala Space Observatory, S-430 34 Onsala, Sweden

Extract

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The distributions of the H13CN, H12CN and H12CO+ J =1-0 lines have been mapped with 20″ spacing towards the Orion A molecular cloud using the new Onsala 20 m millimeter wave telescope equipped with a room temperature mixer. The aperture and main beam efficiencies are about 49 and 65% and the half power beam width is ∼ 43″. The absolute pointing accuracy is estimated to be better than 5″ rms in the Orion elevation range.

Type
Research Article
Information
Symposium - International Astronomical Union , Volume 87: Interstellar Molecules , 1980 , pp. 39 - 40
Copyright
Copyright © Reidel 1980