Compact boson stars in K field theories

@article{Adam2009CompactBS,
  title={Compact boson stars in K field theories},
  author={Christoph Adam and Nicol{\'a}s Grandi and P. Klimas and Joaquin Sanchez-Guillen and A. Wereszczynski},
  journal={General Relativity and Gravitation},
  year={2009},
  volume={42},
  pages={2663-2701}
}
We study a scalar field theory with a non-standard kinetic term minimally coupled to gravity. We establish the existence of compact boson stars, that is, static solutions with compact support of the full system with self-gravitation taken into account. Concretely, there exist two types of solutions, namely compact balls on the one hand, and compact shells on the other hand. The compact balls have a naked singularity at the center. The inner boundary of the compact shells is singular, as well… 

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