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A multi-transition and multi-isotope study of CO in the giant molecular cloud Orion-A

Published online by Cambridge University Press:  03 August 2017

A. Dutrey ,
A. Castets ,
G. Duvert ,
J. Bally ,
W. D. Langer  and
R. W. Wilson
A. Dutrey
Affiliation:
Groupe d'Astrophysique de Grenoble, B.P.53X 38 041 Grenoble, France
A. Castets
Affiliation:
Groupe d'Astrophysique de Grenoble, B.P.53X 38 041 Grenoble, France
G. Duvert
Affiliation:
Groupe d'Astrophysique de Grenoble, B.P.53X 38 041 Grenoble, France
J. Bally
Affiliation:
AT&T Bell laboratories, Box 400 Holmdel, New Jersey 07, USA
W. D. Langer
Affiliation:
AT&T Bell laboratories, Box 400 Holmdel, New Jersey 07, USA
R. W. Wilson
Affiliation:
AT&T Bell laboratories, Box 400 Holmdel, New Jersey 07, USA

Extract

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In order to study the excitation conditions in the Orion-A region, we applied an LVG code to 12CO, 13CO and C18O data obtained with the AT&T Bell Laboratories 7-meter telescope in USA (CO isotopes: J = 1 — 0, CS: J = 2 — 1) and the radiotelescope of the "Groupe d'Astrophysique de Grenoble" in France (CO isotopes: J = 2 — 1).

Type
Poster Sessions
Information
Symposium - International Astronomical Union , Volume 147: Fragmentation of Molecular Clouds and Star Formation , 1991 , pp. 405 - 406
Copyright
Copyright © Kluwer 1991 

References

Castets, A., Duvert, G., Dutrey, A., Bally, J., Langer, W.D., Wilson, R.W. Astron. Astrophys. 1990, in Press.Google Scholar