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Radiative Transfer Modeling of Molecular Clouds: HCO+ in the Star-Forming Region W 49 A North

Published online by Cambridge University Press:  12 April 2016

Hélène R. Dickel ,
Lawrence H. Auer  and
David J. Wilner
Hélène R. Dickel
Affiliation:
U. of Illinois, 103 Astron. Bldg., 1002 W Green St., Urbana II 61801 USA Australia Telescope Nat’l Facil., PO Box 76, Epping NSW 2121 Australia
Lawrence H. Auer
Affiliation:
Los Alamos National Laboratory, MS-F665, Los Alamos NM 87545 USA
David J. Wilner
Affiliation:
Astronomy Dept. University of California, Berkeley CA 94720 USA

Abstract

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A multi-level, non-LTE, (non-LVG) radiative transfer code has been applied to HCO+ observations of W 49 A north. Profiles of both the J=1-0 and J=3-2 transitions are successfully reproduced with a variety of cloud models.

Type
3. Astronomical Results and Prospects
Information
International Astronomical Union Colloquium , Volume 140: Astronomy with Millimeter and Submillimeter Wave Interferometry , 1994 , pp. 253 - 254
Copyright
Copyright © Astronomical Society of the Pacific 1994

References

Auer, L.H., & Dickel, H.R. 1988, in Interstellar Matter, eds. Moran, J.M. & Ho, P.T.P., Gordon, & Breach, , p. 165 Google Scholar
Welch, Wm.J., Dreher, J.W., Jackson, J.M., Terebey, S., & Vogel, S.N. 1987, Science 238, 1550 CrossRefGoogle Scholar