Oscillating soliton stars

Details Oscillating soliton stars Oscillating soliton stars

Apr 1991

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1991phrvl..66.1659s&link_type=abstract

Physical Review Letters, Volume 66, Issue 13, April 1, 1991, pp.1659-1662

Astronomy and Astrophysics

Astrophysics

103

Relativity And Gravitation, Exact Solutions

Scientific paper

We study a new type of self-gravitating object, described by a soliton solution to the coupled system of the Einstein equation and a matter field equation. The solution describing the self-gravitating object is not static but, instead, is periodic, with both the spacetime geometry and the matter field oscillating in time. In particular, we show that a system described by a real scalar field gμνφμν-m2φ=0 admits such a solution, which is stable under perturbations. The existence of such objects could have important implications for astrophysics and cosmology.

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