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The Physics of Molecular Shocks in YSO Outflows

Published online by Cambridge University Press:  25 May 2016

David Hollenbach
David Hollenbach*
Affiliation:
MS 245-3, NASA Ames Research Center, Moffett Field, CA, 94035-1000, USA

Abstract

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Shock waves light up the jets, winds and outflows around YSOs and diagnose the physical conditions and processes resident in these regions. This paper discusses the differences between the jet/wind shock and the ambient shock, between C shocks and J shocks, and between the shocks produced by pure jets and by collimated wide angle winds. Basic shock physics is briefly reviewed, with a special focus on the temperature structure in shocks and the Wardle instability of C shocks. Application is made to the origin of shocked H2 emission and to H2O masers.

Type
II. The Physics and Chemistry of Molecular Outflows
Information
Symposium - International Astronomical Union , Volume 182: Herbig-Haro Flows and the Birth of Low Mass Stars , 1997 , pp. 181 - 198
Copyright
Copyright © Kluwer 1997 

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