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High-J CO lines from YSOs driving molecular outflows

Nisini, B.; Giannini, T.; Molinari, S.; Saraceno, P.; Caux, E.; Ceccarelli, C.; Liseau, R.; Lorenzetti, D.; Tommasi, E. and White, G. J. (1998). High-J CO lines from YSOs driving molecular outflows. In: Star Formation with the Infrared Space Observatory (ISO), 24-26 June 1997, Lisbon, Portugal.

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LWS observations towards molecular outflows driving sources show that their FIR spectrum is often dominated by the emission of CO rotational lines. Model fits to these lines show that they originate from a dense and compact gas component with temperatures ranging from few hundred up to 1600 K. An analysis of their emission suggests that non-dissociative shocks are the main excitation mechanism, although in few cases other contributions may also be present. We discuss the origin of this shocked emission and how it relates to the large scale properties of the molecular outflows.

Item Type: Conference Item
Copyright Holders: 1998 Astronomical Society of the Pacific
Extra Information: Star Formation with the Infrared Space Observatory
ASP Conference Series, Vol.132, 1998
J.L. Yun, and R. Liseau, eds
ISBN: 1-886733-52-X
eISBN: 978-1-58381-468-0

Academic Unit/Department: Science > Physical Sciences
Interdisciplinary Research Centre: Centre for Earth, Planetary, Space and Astronomical Research (CEPSAR)
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Item ID: 32674
Depositing User: G. J. White
Date Deposited: 21 Mar 2012 16:06
Last Modified: 25 Feb 2016 18:30
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