Charged black holes in quadratic gravity

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F67985840%3A_____%2F24%3A00598229" target="_blank" >RIV/67985840:_____/24:00598229 - isvavai.cz</a>

Alternative codes found

RIV/00216208:11320/24:10485708

Result on the web

<a href="https://doi.org/10.1103/PhysRevD.110.044069" target="_blank" >https://doi.org/10.1103/PhysRevD.110.044069</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1103/PhysRevD.110.044069" target="_blank" >10.1103/PhysRevD.110.044069</a>

Result language

angličtina

Original language name

Charged black holes in quadratic gravity

Original language description

We study electrically charged, static, spherically symmetric black holes in quadratic gravity using the conformal-to-Kundt technique, which leads to a considerable simplification of the field equations. We study the solutions using a Frobenius-like approach of power-series expansions. The indicial equations restrict the set of possible leading powers to a few cases, describing, e.g., black holes, wormholes, or naked singularities. We focus on the black hole case and derive recurrent formulas for all series coefficients of the infinite power-series expansion around the horizon. The solution is characterized by electric charge q, the black-hole radius a0, and the Bach parameter b related to the strength of the Bach tensor at the horizon. However, the Bach parameter has to be fine-tuned to ensure asymptotic flatness. The fine-tuning of b for a given q and a0 returns up to two values, describing two branches of asymptotically flat, static, spherically symmetric, charged black holes in quadratic gravity. This is in agreement with previous numerical works. We discuss various physical properties of these black holes, such as their asymptotic mass, temperature, photon spheres, and black-hole shadows. A straightforward generalization to dyonic black holes in quadratic gravity is also briefly mentioned.

Czech name

—

Czech description

—

Type

J_imp - Article in a specialist periodical, which is included in the Web of Science database

CEP classification

—

OECD FORD branch

10303 - Particles and field physics

Project

—

Continuities

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Publication year

2024

Confidentiality

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Name of the periodical

Physical Review D

ISSN

2470-0010

e-ISSN

2470-0029

Volume of the periodical

110

Issue of the periodical within the volume

4

Country of publishing house

US - UNITED STATES

Number of pages

14

Pages from-to

044069

UT code for WoS article

001302042200004

EID of the result in the Scopus database

2-s2.0-85204485580