di Giorgio, A. M.; Benedettini, M.; Pezzuto, S.; Saraceno, P.; Spinoglio, L.; Correia, J. C.; Griffin, M.~J.; Leeks, S. J.; White, G. J.; Molinari, S.; Tommasi, E.; Caux, E.; Liseau, R. and Smith, H.
(1999).
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| URL: | http://adsabs.harvard.edu/abs/1999ASPC..188...93D |
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Abstract
We present some overall results, obtained with the Long Wavelength Spectrometer aboard the Infrared Space Observatory (ISO-LWS), of the far-infrared spectra (45-190 μm) of the sources belonging to the pre-main sequence stellar evolution guaranteed time program. Strong molecular lines were detected in most of the Class 0, in the low luminosity Class I and in some Class II sources: for the first time thermally excited water was observed, plus several hydroxl lines and carbon monoxide high-J transitions. All these lines can be explained by the presence of a warm and dense (T=200 - 2000 K; n(H2)=104-106 cm-3) gas component.
| Item Type: | Conference Item |
|---|---|
| Copyright Holders: | 1999 Astronomical Society of the Pacific |
| Extra Information: | Optical and Infrared Spectroscopy of Circumstellar Matter
Proceedings of a workshop held in honor of the 65th birthday of Josef Solf at the Thüringer Landessternwarte Tautenburg, Tautenburg, Germany, 10-121 March 1999 Edited by Eike .W. Guenther, Bringfried Stecklum, and Sylvio Klose ASP Conference Series, Vol.188, 1999 ISBN: 1-58381-014-5 eISBN: 978-1-58381-524-3 pp.93-96 |
| Academic Unit/Department: | Science > Physical Sciences |
| Interdisciplinary Research Centre: | Centre for Earth, Planetary, Space and Astronomical Research (CEPSAR) |
| Related URLs: | |
| Item ID: | 33316 |
| Depositing User: | Glenn White |
| Date Deposited: | 10 May 2012 15:23 |
| Last Modified: | 10 May 2012 19:07 |
| URI: | http://oro.open.ac.uk/id/eprint/33316 |
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