Exotic compact objects and light bosonic fields

In this article, we discuss the effect of light, nongauge, bosonic degrees of freedom on the exterior spacetime of an exotic compact object. We show that such fields generically introduce large deviations from black hole spacetimes of general relativity near and outside the surfaces of ultracompact...

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Bibliographic Details
Published in:Physical review. D 2024-07, Vol.110 (2), Article 024034
Main Authors: Thaalba, Farid, Ventagli, Giulia, Sotiriou, Thomas P.
Format: Article
Language:English
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Summary:In this article, we discuss the effect of light, nongauge, bosonic degrees of freedom on the exterior spacetime of an exotic compact object. We show that such fields generically introduce large deviations from black hole spacetimes of general relativity near and outside the surfaces of ultracompact exotic objects unless one assumes they totally decouple from the standard model or new heavy fields. Hence, using black hole spacetimes of general relativity to model ultracompact exotic objects and their perturbations relies implicitly on this assumption or on the absence of such fields.
ISSN:2470-0010
2470-0029
DOI:10.1103/PhysRevD.110.024034