Boson stars and oscillatons in an inflationary universe

Journal Article · Sun Aug 15 04:00:00 EDT 2010 · Physical Review. D, Particles Fields

DOI:https://doi.org/10.1103/PHYSREVD.82.044043· OSTI ID:21420979

Fodor, Gyula ^[1]; Forgacs, Peter ^[1]; Mezei, Mark ^[2]

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1. MTA RMKI, H-1525 Budapest 114, P.O. Box 49 (Hungary)
2. Center for Theoretical Physics, Massachusetts Institute of Technology, Cambridge, Massachusetts 02139 (United States)

Spherically symmetric gravitationally bound, oscillating scalar lumps (boson stars and oscillatons) are considered in Einstein's gravity coupled to massive scalar fields in 1+D-dimensional de Sitter-type inflationary space-times. We show that due to inflation bosons stars and oscillatons lose mass through scalar radiation, but at a rate that is exponentially small when the expansion rate is slow.

• OSTI ID: 21420979
• Journal Information: Physical Review. D, Particles Fields, Journal Name: Physical Review. D, Particles Fields Journal Issue: 4 Vol. 82; ISSN PRVDAQ; ISSN 0556-2821
• Country of Publication: United States
• Language: English

Related Subjects

72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
79 ASTRONOMY AND ASTROPHYSICS
BOSONS
COSMOLOGICAL MODELS
DE SITTER SPACE
EXPANSION
GRAVITATION
INFLATIONARY UNIVERSE
MASS
MATHEMATICAL MODELS
MATHEMATICAL SPACE
SCALAR FIELDS
SPACE
SPACE-TIME
STARS
SYMMETRY