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Title: Asymptotically flat, spherical, self-interacting scalar, Dirac and Proca stars
Author: Herdeiro, Carlos A. R.
Radu, Eugen
Keywords: Solitons
Boson stars
Dirac stars
Issue Date: Dec-2020
Publisher: MDPI
Abstract: We present a comparative analysis of the self-gravitating solitons that arise in the Einstein–Klein–Gordon, Einstein–Dirac, and Einstein–Proca models, for the particular case of static, spherically symmetric spacetimes. Differently from the previous study by Herdeiro, Pombo and Radu in 2017, the matter fields possess suitable self-interacting terms in the Lagrangians, which allow for the existence of Q-ball-type solutions for these models in the flat spacetime limit. In spite of this important difference, our analysis shows that the high degree of universality that was observed by Herdeiro, Pombo and Radu remains, and various spin-independent common patterns are observed.
Peer review: yes
DOI: 10.3390/sym12122032
ISSN: 2073-8994
Appears in Collections:CIDMA - Artigos
DMat - Artigos
GGDG - Artigos

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