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arXiv · 1011.2638

Tails of the Unexpected: The Interaction of an Isothermal Shell with a Cloud

J. M. Pittard
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Abstract

A new mechanism for the formation of cometary tails behind dense clouds or globules is discussed. Numerical hydrodynamical models show that when a dense shell of swept-up matter overruns a cloud, material in the shell is focussed behind the cloud to form a tail. This mode of tail formation is completely distinct from other methods, which involve either the removal of material from the cloud, or shadowing from a strong, nearby source of ionization. This mechanism is relevant to the cometary tails seen in planetary nebulae and to the interaction of superbubble shells with dense clouds.

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J. M. Pittard. 2010-11-11. Tails of the Unexpected: The Interaction of an Isothermal Shell with a Cloud. https://doi.org/10.1111/j.1745-3933.2010.00988.x

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