Method for distinguishing very compact stellar objects from black holes

We propose a way to distinguish a compact stellar object, whose size is very close to its Schwarzschild radius, from the collapsing stars. Namely, we show that massive fields in the vicinity of a very compact stellar object have discrete energy levels. (These levels are different from the standard n...

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Bibliographic Details
Published in:Physical review. D 2016-03, Vol.93 (6), Article 064006
Main Authors: Akhmedov, Emil T., Kalinov, Daniil A., Popov, Fedor K.
Format: Article
Language:English
Subjects:
Black holes (astronomy)
Collapsing
Cosmology
Energy levels
Gravitation
Stars
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Summary:We propose a way to distinguish a compact stellar object, whose size is very close to its Schwarzschild radius, from the collapsing stars. Namely, we show that massive fields in the vicinity of a very compact stellar object have discrete energy levels. (These levels are different from the standard nonrelativistic ones present in Coulomb-type potentials and from the quasinormal modes.) At the same time, we show that there are no such discrete levels for massive fields in the vicinity of a collapsing star.
ISSN:2470-0010
2470-0029
DOI:10.1103/PhysRevD.93.064006