Black holes and wormholes in f(R) gravity with a kinetic curvature scalar

被引：4

作者：

Chervon, Sergey, V ^{[1
,2
,3
]}

Fabris, Julio C. ^{[4
,5
,6
]}

Fomin, Igor, V ^{[2
]}

机构：

[1] Ulyanovsk State Pedag Univ, Lab Gravitat Cosmol Astrophys, Lenins Sq 4-5, Ulyanovsk 432071, Russia

[2] Bauman Moscow State Tech Univ, 2nd Baumanskaya St, Moscow 105005, Russia

[3] Kazan Fed Univ, Inst Phys, Kremlevskaya St 18, Kazan 420008, Russia

[4] Univ Fed Espirito Santo UFES, Nucleo Cosmo Ufes, Av Fernando Ferrari,514, BR-29075910 Vitoria, ES, Brazil

[5] Univ Fed Espirito Santo UFES, Dept Fis, Av Fernando Ferrari,514, BR-29075910 Vitoria, ES, Brazil

[6] Natl Res Nucl Univ MEPhl, Kashirskoe Sh 31, Moscow 115409, Russia

来源：

CLASSICAL AND QUANTUM GRAVITY | 2021年 / 38卷 / 11期

关键词：

black holes; wormholes; modified gravity theories; chiral self-gravitating model; 6TH-ORDER GRAVITY;

D O I：

10.1088/1361-6382/abebf0

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

We study the chiral self-gravitating model (CSGM) of a special type in the spherically symmetric static spacetime in Einstein frame. Such CSGM is derived, by virtue of Weyl conformal transformation, from a gravity model in the Jordan frame corresponding to a modified f(R) gravity with a kinetic scalar curvature. We investigate the model using harmonic coordinates and consider a special case of the scaling transformation from the Jordan frame. We find classes of solutions corresponding to a zero potential and we investigate horizons, centers and the asymptotic behavior of the obtained solutions. Other classes of solutions (for the potential not equal to zero) are found using a special relation (ansatz) between the metric components. Investigations of horizons, centers and asymptotic behavior of obtained solutions for this new case are performed as well. Comparative analysis with similar solutions obtained earlier in literature is made.

引用

页数：27

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