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  Numerical evidence for multi-scalar stars

Hawley, S. H., & Choptuik, M. W. (2003). Numerical evidence for multi-scalar stars. Physical Review D, 67(2): 024010.

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Item Permalink: http://hdl.handle.net/11858/00-001M-0000-0013-525C-3 Version Permalink: http://hdl.handle.net/11858/00-001M-0000-0013-525D-1
Genre: Journal Article

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 Creators:
Hawley, Scott H.1, Author
Choptuik, Matthew W., Author
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1Astrophysical Relativity, AEI-Golm, MPI for Gravitational Physics, Max Planck Society, ou_24013              

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 Abstract: We present a class of general relativistic soliton-like solutions composed of multiple minimally coupled, massive, real scalar fields which interact only through the gravitational field. We describe a two-parameter family of solutions we call ''''phase-shifted boson stars (parameterized by central density $ ho_0$ and phase $delta$), which are obtained by solving the ordinary differential equations associated with boson stars and then altering the phase between the real and imaginary parts of the field. These solutions are similar to boson stars as well as the oscillating soliton stars found by Seidel and Suen [E. Seidel and W.~M. Suen, Phys. Rev. Lett. { f 66}, 1659 (1991)]; in particular, long-time numerical evolutions suggest that phase-shifted boson stars are stable. Our results indicate that scalar soliton-like solutions are perhaps more generic than has been previously thought

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Language(s): eng - English
 Dates: 2003-01-15
 Publication Status: Published in print
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 Identifiers: eDoc: 3101
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Title: Physical Review D
Source Genre: Journal
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Pages: - Volume / Issue: 67 (2) Sequence Number: 024010 Start / End Page: - Identifier: -