Boson Stars from Self-Interacting Dark Matter

Preprint number: CP3-Origins-2015-44 DNRF90 and DIAS-2015-44
Authors: Joshua Eby (University of Cincinnati), Chris Kouvaris (CP3-Origins), Niklas G. Nielsen (CP3-Origins), and L.C.R. Wijewardhana (University of Cincinnati)
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We study the possibility that self-interacting bosonic dark matter forms star-like objects. We study both the case of attractive and repulsive self-interactions, and we focus particularly in the parameter phase space where self-interactions can solve well standing problems of the collisionless dark matter paradigm. We find the mass radius relations for these dark matter bosonic stars, their density profile as well as the maximum mass they can support.