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Simulations of ionisation triggering

Published online by Cambridge University Press:  01 August 2006

C. J. Clarke  and
J. E. Dale
C. J. Clarke
Affiliation:
Institute of Astronomy, Madingley Road, Cambridge, U.K., CB3 OHA email: [email protected]
J. E. Dale
Affiliation:
Department of Physics and Astronomy, University of Leicester, University Road, Leicester, U.K.LE1 7RH email: [email protected]
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Abstract

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We review recent pilot simulations that incorporate feedback from ionising radiation in SPH calculations of star forming clouds. In the case that the ionising radiation source is located within the star forming cloud, the inhomogeneity of the cloud significantly modifies the way that feedback operates compared with spherically symmetric cloud models. Inflow/outflow behaviour develops, combining accretion down dense filaments and thermally driven outflows that can remove many times the binding energy of the parent cloud. If the ionising source is located external to the cloud, we find evidence for triggered star formation but conclude that it is hard to find unambiguous observational signatures that would distinguish “triggered” stars from those created spontaneously.

Type
Contributed Papers
Information
Proceedings of the International Astronomical Union , Volume 2 , Symposium S237: Triggered Star Formation in a Turbulent ISM , August 2006 , pp. 300 - 305
Copyright
Copyright © International Astronomical Union 2007

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