Structure of rotating charged boson stars

In this work we present sets of solutions for rotating charged boson stars with different coupling values. By adopting local comoving coordinates, we are able to find expressions for the effective hydrodynamic quantities of the fluids as seen by this class of observers. We show that not only is the...

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Veröffentlicht in:Physical review. D 2019-05, Vol.99 (10), p.104076, Article 104076
Hauptverfasser: Collodel, Lucas G., Kleihaus, Burkhard, Kunz, Jutta
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Sprache:eng
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Zusammenfassung:In this work we present sets of solutions for rotating charged boson stars with different coupling values. By adopting local comoving coordinates, we are able to find expressions for the effective hydrodynamic quantities of the fluids as seen by this class of observers. We show that not only is the energy density nonzero at the center, for the uncharged case it has a local maximum at the core from which it decreases until the point of local minimum where its variation is discontinuous. For the first time (to our knowledge), it is reported how rotating boson stars, charged and uncharged, are completely anisotropic fluids featuring three different pressures. Furthermore, the character of the electromagnetic fields is analyzed.
ISSN:2470-0010
2470-0029
DOI:10.1103/PhysRevD.99.104076