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CO J = 3-2 and 4-3 Observations of Molecular Clouds

Published online by Cambridge University Press:  04 August 2017

Glenn J. White ,
Ruth Rainey ,
Lorne Avery ,
Peter Phillips ,
Matthew Griffin ,
Tania Monteiro ,
Kevin Richardson ,
Nigel Cronin  and
Ron Harten
Glenn J. White
Affiliation:
Queen Mary College, University of London, England
Ruth Rainey
Affiliation:
Queen Mary College, University of London, England
Lorne Avery
Affiliation:
National Research Council, Ottawa, Canada
Peter Phillips
Affiliation:
Queen Mary College, University of London, England
Matthew Griffin
Affiliation:
Queen Mary College, University of London, England
Tania Monteiro
Affiliation:
University of Newcastle-upon-Tyne, England
Kevin Richardson
Affiliation:
Queen Mary College, University of London, England
Nigel Cronin
Affiliation:
University of Bath, England
Ron Harten
Affiliation:
Netherlands Foundation for Radio Astronomy, Holland

Extract

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We report on extensive submillimetre wavelength observations in the CO J = 3-2 and 4-3 lines towards a sample of star formation regions. The observations have been obtained using the Queen Mary College Submillimetre Heterodyne Receiver at the UKIRT 3.8 m telescope. The data include observations and maps of NGC 2024, S88, W3, S140, CRL2591, NGC 2264, K3-50, G35.2-0.74, ρ Oph A, M17, W51, S68, S106, NGC 1333, DR21 and W49. Several new bipolar flow sources have been detected in NGC 2024, S88 and NGC 2264. Comparisons between the spectra in the CO J = 1-0, 2-1, 3-2 and 4-3 transitions will be discussed in terms of their excitation, in particular for the gas in the high velocity line wings, where we have attempted to estimate the densities and relative abundances of the flow material.

Type
I. Star Forming Processes in the Solar Neighborhood
Information
Symposium - International Astronomical Union , Volume 115: Star Forming Regions , 1987 , pp. 172
Copyright
Copyright © Reidel 1987