Regular phantom black holes

We study self-gravitating, static, spherically symmetric phantom scalar fields with arbitrary potentials (favored by cosmological observations) and single out 16 classes of possible regular configurations with flat, de Sitter, and anti-de Sitter asymptotics. Among them are traversable wormholes, bouncing Kantowski-Sachs (KS) cosmologies, and asymptotically flat black holes (BHs). A regular BH has a Schwarzschild-like causal structure, but the singularity is replaced by a de Sitter infinity, giving a hypothetic BH explorer a chance to survive. It also looks possible that our Universe has originated in a phantom-dominated collapse in another universe, with KS expansion and isotropization after crossing the horizon. Explicit examples of regular solutions are built and discussed. Possible generalizations include k-essence type scalar fields (with a potential) and scalar-tensor gravity. © 2006 The American Physical Society.

Авторы
Bronnikov K.A. 1, 2 , Fabris J.C.3
Редакторы
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Издательство
-
Номер выпуска
25
Язык
Английский
Страницы
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Статус
Опубликовано
Подразделение
-
Номер
251101
Том
96
Год
2006
Организации
  • 1 Center for Gravitation and Fundamental Metrology, VNIIMS, 46 Ozyornaya Street, Moscow 119361, Russian Federation
  • 2 Institute of Gravitation and Cosmology, PFUR, 6 Miklukho-Maklaya Street, Moscow 117198, Russian Federation
  • 3 Departamento de Física, Universidade Federal do Espírito Santo, Vitoria, 29060-900, Espirito Santo, Brazil
Ключевые слова
Gravitational effects; Space research; Tensors; Anti-de Sitter asymptotics; Arbitrary potentials; Phantom black holes; Schwarzschild-like causal structure; Astronomy
Дата создания
19.10.2018
Дата изменения
19.10.2018
Постоянная ссылка
https://repository.rudn.ru/ru/records/article/record/3349/