The formation of free-floating brown dwarves and planetary-mass objects by photo-erosion of prestellar cores

Whitworth, Anthony Peter ORCID: https://orcid.org/0000-0002-1178-5486 and Zinnecker, H. 2005. The formation of free-floating brown dwarves and planetary-mass objects by photo-erosion of prestellar cores. Corbelli, E., Palla, F. and Zinnecker, H., eds. The initial mass function 50 years later, Astrophysics and Space Science Library, vol. 327. Dordrecht: Springer, pp. 145-146. (10.1007/978-1-4020-3407-7_26)

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Abstract

We explore the possibility that, in the vicinity of an OB star, a prestellar core which would otherwise have formed an intermediate or low-mass star may instead form a free-floating brown dwarf or planetary-mass object, because the outer layers of the core are eroded by the ionizing radiation from the OB star before they can accrete onto the protostar at the centre of the core. We find that the mechanism is robust, in the sense that it operates under a wide range of conditions, but it is also inefficient, in the sense that a rather massive core is required to produce a single brown dwarf.

Item Type:	Book Section
Date Type:	Publication
Status:	Published
Schools:	Physics and Astronomy
Subjects:	Q Science > QB Astronomy
Publisher:	Springer
ISBN:	9781402034060
Last Modified:	25 Oct 2022 09:39
URI:	https://orca.cardiff.ac.uk/id/eprint/59486

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