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Radio observations of the galactic plane CH distribution

Published online by Cambridge University Press:  14 August 2015

L.E.B. Johansson ,
å. Hjalmarson  and
O.E.H. Rydbeck
L.E.B. Johansson
Affiliation:
Onsala Space Observatory S-430 34 Onsala, Sweden
å. Hjalmarson
Affiliation:
Onsala Space Observatory S-430 34 Onsala, Sweden
O.E.H. Rydbeck
Affiliation:
Onsala Space Observatory S-430 34 Onsala, Sweden

Abstract

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The CH distribution in the galactic plane has been determined through observations of the ground state main line transition 2π1/2, J=1/2, F=1-1 at 3335 MHz. The longitude ranges 10°≤ℓ≤60° and 60°<ℓ≤230 have been covered with the spacings 2°.5 and 5°, respectively. The derived radial distribution is similar to that of CO, although differencies may exist. From observations at ℓ=30° and 43°.26 the CH layer halfwidth is estimated to be 50 pc, in close agreement with that of CO. A CH displacement below the standard plane is observed in these directions.

Type
II. THE DISK COMPONENT
Information
Symposium - International Astronomical Union , Volume 84: The Large-Scale Characteristics of the Galaxy , 1979 , pp. 57 - 60
Copyright
Copyright © Reidel 1979 

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