Rotating boson stars and Q-balls. II. Negative parity and ergoregions

Journal Article · Sat Mar 15 00:00:00 EDT 2008 · Physical Review. D, Particles Fields

DOI:https://doi.org/10.1103/PHYSREVD.77.064025· OSTI ID:21249843

Kleihaus, Burkhard; Kunz, Jutta; List, Meike; Schaffer, Isabell ^[1]

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1. Institut fuer Physik, Universitaet Oldenburg, D-26111 Oldenburg (Germany)

We construct axially symmetric, rotating boson stars with positive and negative parity. Their flat space limits represent spinning Q-balls. Q-balls and boson stars exist only in a limited frequency range. The coupling to gravity gives rise to a spiral-like frequency dependence of the mass and charge of boson stars. We analyze the properties of these solutions. In particular, we discuss the presence of ergoregions in boson stars and determine their domains of existence.

• OSTI ID: 21249843
• Journal Information: Physical Review. D, Particles Fields, Vol. 77, Issue 6; Other Information: DOI: 10.1103/PhysRevD.77.064025; (c) 2008 The American Physical Society; Country of input: International Atomic Energy Agency (IAEA); ISSN 0556-2821
• Country of Publication: United States
• Language: English

Related Subjects

72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
79 ASTROPHYSICS
COSMOLOGY AND ASTRONOMY
AXIAL SYMMETRY
BOSONS
COUPLING
FREQUENCY DEPENDENCE
FREQUENCY RANGE
GRAVITATION
MASS
MATHEMATICAL SOLUTIONS
PARITY
ROTATION
SPACE
STARS