Dark stars: structure, evolution and impacts upon the high-redshift Universe

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Title: Dark stars: structure, evolution and impacts upon the high-redshift Universe
Authors: Scott, P
Item Type: Conference Paper
Abstract: The most compelling and popular models for dark matter predict that it should congregate and annihilate in stellar cores. Stars where annihilation contributes substantially to the total energy budget look very different to those with which we are familiar. Here I explain the general features of stars modified by dark matter annihilation with the help of a series of grids of 'dark' stellar evolutionary models, and describe the public code with which they were computed. I go on to discuss possible impacts of dark stars on the high-redshift Universe, including the history of reionisation. The preliminary reionisation calculations reproduced here are based on dedicated models for dark star atmospheres, and for the stellar populations to which dark stars would belong.
Issue Date: 1-Dec-2010
URI: http://hdl.handle.net/10044/1/54137
Journal / Book Title: Proceedings of Science (CRF 2010)
Copyright Statement: © 2010 Copyright owned by the author(s) under the terms of the Creative Commons Attribution-NonCommercial-ShareAlike Licence.
Keywords: astro-ph.CO
hep-ph
Notes: Proceedings of invited talk at CRF2010, DESY Hamburg, Nov 9-12 2010; 7 pages, 3 figures; v2 includes minor updates to match final PoS version
Appears in Collections:Physics
Astrophysics
Faculty of Natural Sciences



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