KFU. Card publication. Dilaton gravity, charged dust, and (quasi-) black holes

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FEDERAL UNIVERSITY

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DILATON GRAVITY, CHARGED DUST, AND (QUASI-) BLACK HOLES

Form of presentation

Articles in international journals and collections

Year of publication

2014

Язык

английский

Authors, employees of KFU

Zaslavskiy Oleg Borisovich, author

Bibliographic description in the original language

K. A. Bronnikov, J. C. Fabris, R. Silveira, and O. B. Zaslavskii, Dilaton gravity, charged dust, and (quasi-) black holes Phys. Rev. D 89, 107501 (2014).

Annotation

We consider Einstein-Maxwell-dilaton gravity with charged dust and interaction of the form PðχÞFμνFμν, where PðχÞ is an arbitrary function of the dilaton field χ that can be normal or phantom. For any regular PðχÞ, static configurations are possible with arbitrary functions g00 ¼ expð2γðxiÞÞ (i ¼ 1, 2, 3) and χ ¼ χðγÞ, without any assumption of spatial symmetry. The classical Majumdar-Papapetrou system is restored by putting χ ¼ const. Among possible solutions are black-hole (BH) and quasi-blackhole (QBH) ones. Some general results on BH and QBH properties are deduced and confirmed by examples. It is found, in particular, that asymptotically flat BHs and QBHs can exist with positive energy densities of matter and both scalar and electromagnetic fields.

Keywords

Majumdar-Papapetrou system, dilaton

The name of the journal

PHYSICAL REVIEW D

URL

https://journals.aps.org/prd/abstract/10.1103/PhysRevD.89.107501

Please use this ID to quote from or refer to the card

https://repository.kpfu.ru/eng/?p_id=159594&p_lang=2

Full metadata record

Field DC	Value	Language
dc.contributor.author	Zaslavskiy Oleg Borisovich	ru_RU
dc.date.accessioned	2014-01-01T00:00:00Z	ru_RU
dc.date.available	2014-01-01T00:00:00Z	ru_RU
dc.date.issued	2014	ru_RU
dc.identifier.citation	K. A. Bronnikov, J. C. Fabris, R. Silveira, and O. B. Zaslavskii, Dilaton gravity, charged dust, and (quasi-) black holes Phys. Rev. D 89, 107501 (2014).	ru_RU
dc.identifier.uri	https://repository.kpfu.ru/eng/?p_id=159594&p_lang=2	ru_RU
dc.description.abstract	PHYSICAL REVIEW D	ru_RU
dc.description.abstract	We consider Einstein-Maxwell-dilaton gravity with charged dust and interaction of the form PðχÞFμνFμν, where PðχÞ is an arbitrary function of the dilaton field χ that can be normal or phantom. For any regular PðχÞ, static configurations are possible with arbitrary functions g00 ¼ expð2γðxiÞÞ (i ¼ 1, 2, 3) and χ ¼ χðγÞ, without any assumption of spatial symmetry. The classical Majumdar-Papapetrou system is restored by putting χ ¼ const. Among possible solutions are black-hole (BH) and quasi-blackhole (QBH) ones. Some general results on BH and QBH properties are deduced and confirmed by examples. It is found, in particular, that asymptotically flat BHs and QBHs can exist with positive energy densities of matter and both scalar and electromagnetic fields.	ru_RU
dc.language.iso	ru	ru_RU
dc.subject	Majumdar-Papapetrou system	ru_RU
dc.subject	dilaton	ru_RU
dc.title	Dilaton gravity, charged dust, and (quasi-) black holes	ru_RU
dc.type	Articles in international journals and collections	ru_RU