Regular black holes and gravitational particle-like solutions in generic DHOST theories

Autor:	Baake, Olaf, Charmousis, Christos, Hassaine, Mokhtar, Juan, Miguel San
Rok vydání:	2021
Předmět:	High Energy Physics - Theory General Relativity and Quantum Cosmology
Druh dokumentu:	Working Paper
DOI:	10.1088/1475-7516/2021/06/021
Popis:	We construct regular, asymptotically flat black holes of higher order scalar tensor (DHOST) theories, which are obtained by making use of a generalized Kerr-Schild solution generating method. The solutions depend on a mass integration constant, admit a smooth core of chosen regularity, and generically have an inner and outer event horizon. In particular, below a certain mass threshold, we find massive, horizonless, particle-like solutions. We scan through possible observational signatures ranging from weak to strong gravity and study the thermodynamics of our regular solutions, comparing them, when possible, to General Relativity black holes and their thermodynamic laws. Comment: 20 pages, 5 figures (added new references)
Databáze:	arXiv
Externí odkaz:	http://arxiv.org/abs/2104.08221 Zobrazit plný text záznamu View this record from Arxiv