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The modifcation by diffuse radiation of "cometary tail" formation behind globules

Pavlakis, K.G., Williams, R.J.R., Dyson, J.E., Falle, S.A.E.G. and Hartquist, T.W. (2001) The modifcation by diffuse radiation of "cometary tail" formation behind globules. Astronomy and Astrophysics, 369 (1). pp. 263-268. ISSN 0004-6361

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Abstract

We study the evolution of a globule of neutral material immersed in the more tenuous hotter plasma of an H II region surrounding newly born OB stars. The neutral globule is illuminated by the direct ionizing radiation of OB stars, and by diffuse radiation emitted by recombination in the surrounding ionized gas. We perform 2D, time dependent axisymmetric hydrodynamic simulations, and find that, for values of the diffuse field of the order of 10% of the direct field, the evolution of the globule is completely different to its evolution when the diffuse field is neglected.

Item Type: Article
Copyright, Publisher and Additional Information: © ESO 2001
Keywords: interstellar medium, clouds, H II regions, kinematics and dynamics, hydrodynamics
Academic Units: The University of Leeds > Faculty of Maths and Physical Sciences (Leeds) > School of Physics and Astronomy (Leeds)
The University of Leeds > Faculty of Maths and Physical Sciences (Leeds) > School of Mathematics (Leeds) > Applied Mathematics (Leeds)
Depositing User: Repository Assistant
Date Deposited: 08 Jun 2006
Last Modified: 08 Feb 2013 17:02
Published Version: http://dx.doi.org/10.1051/0004-6361:20010070
Status: Published
Publisher: EDP Sciences
Refereed: Yes
Identification Number: 10.1051/0004-6361:20010070
URI: http://eprints.whiterose.ac.uk/id/eprint/1263

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