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Cloud-cloud collisions and fragments

Whitworth, Anthony Peter and Pongracic, Helen 1991. Cloud-cloud collisions and fragments. Presented at: Fragmentation of molecular clouds and star formation : 147th Symposium of the International Astronomical Union, Grenoble, France, 12–16 June 1990. Published in: Falgarone, E., Boulanger, F. and Duvert, G. eds. Fragmentation of Molecular Clouds and Star Formation Proceedings of the 147th Symposium of the International Astronomical Union, Held in Grenoble, France, June 12–16, 1990. International Astronomical Union / Union Astronomique Internationale , vol. 147. Netherlands: Springer, pp. 523-525. 10.1007/978-94-011-3384-5_95

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Abstract

Supersonic head-on collisions between quiescent clouds produce flattened sheets of shocked gas. We derive the condition which the cooling law must satisfy if this sheet is to fragment into protostellar condensations (i.e. gravitation-ally unstable lumps). If this condition is not satisfied, colliding clouds are likely to be disrupted and dispersed. We show that under the conditions obtaining in GMCs, most cloud-cloud collisions probably do not result in fragmentation

Item Type: Conference or Workshop Item (Paper)
Date Type: Publication
Status: Published
Schools: Physics and Astronomy
Subjects: Q Science > QB Astronomy
Publisher: Springer
ISBN: 9780792311591
Last Modified: 04 Jun 2017 08:13
URI: http://orca.cf.ac.uk/id/eprint/74409

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