Binary and multiple star formation

Turner, J.A., Chapman, S.J., Bhattal, A.S., Disney, Michael John and Whitworth, Anthony Peter ORCID: https://orcid.org/0000-0002-1178-5486 1994. Binary and multiple star formation. Astrophysics and Space Science 216 (1-2) , pp. 323-324. 10.1007/BF00982512

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Abstract

From the growing observational evidence that binary / multiple star formation occurs prior to the pre-main sequence (Mathieu, 1992), it is clear that any theory of star formation MUST also explain binary formation. This paper details two formation mechanisms for binary / multiple stars, which occur simultaneously with protostar formation. The protostellar discs we form have masses 5 → 30M ⊙, diameters 200 → 4000 AU. The binaries / multiples have separations 400 → 7500 AU. The formation mechanisms were found by conducting numerical simulations of two cloud collisions, using SPH and Treecode gravity with up to 200,000 particles per calculation and a prescribed cooling equation of state.

Item Type:	Article
Date Type:	Publication
Status:	Published
Schools:	Schools > Physics and Astronomy
Subjects:	Q Science > QB Astronomy
Publisher:	Kluwer Academic
ISSN:	0004-640X
Last Modified:	10 Mar 2024 17:37
URI:	https://orca.cardiff.ac.uk/id/eprint/47672

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