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Relativistic collapse of axion stars.

Michel, Florent and Moss, Ian G. (2018) 'Relativistic collapse of axion stars.', Physics letters B., 785 . pp. 9-13.


We study the gravitational collapse of axion dark matter in null coordinates, assuming spherical symmetry. Compared with previous studies, we use a simpler numerical scheme which can run, for relevant parameters, in a few minutes or less on a desktop computer. We use it to accurately determine the domains of parameter space in which the axion field forms a black hole, an axion star or a relativistic Bosenova.

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Publisher statement:© 2018 The Author(s). Published by Elsevier B.V. This is an open access article under the CC BY license (
Date accepted:07 July 2018
Date deposited:06 September 2018
Date of first online publication:20 August 2018
Date first made open access:06 September 2018

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