Static Spherically Symmetric Black Holes in Weak f(T)-Gravity

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216208%3A11320%2F21%3A10438355" target="_blank" >RIV/00216208:11320/21:10438355 - isvavai.cz</a>

Result on the web

<a href="https://verso.is.cuni.cz/pub/verso.fpl?fname=obd_publikace_handle&handle=a.Zvyg8IfJ" target="_blank" >https://verso.is.cuni.cz/pub/verso.fpl?fname=obd_publikace_handle&handle=a.Zvyg8IfJ</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.3390/universe7050153" target="_blank" >10.3390/universe7050153</a>

Result language

angličtina

Original language name

Static Spherically Symmetric Black Holes in Weak f(T)-Gravity

Original language description

With the advent of gravitational wave astronomy and first pictures of the &quot;shadow&quot; of the central black hole of our milky way, theoretical analyses of black holes (and compact objects mimicking them sufficiently closely) have become more important than ever. The near future promises more and more detailed information about the observable black holes and black hole candidates. This information could lead to important advances on constraints on or evidence for modifications of general relativity. More precisely, we are studying the influence of weak teleparallel perturbations on general relativistic vacuum spacetime geometries in spherical symmetry. We find the most general family of spherically symmetric, static vacuum solutions of the theory, which are candidates for describing teleparallel black holes which emerge as perturbations to the Schwarzschild black hole. We compare our findings to results on black hole or static, spherically symmetric solutions in teleparallel gravity discussed in the literature, by comparing the predictions for classical observables such as the photon sphere, the perihelion shift, the light deflection, and the Shapiro delay. On the basis of these observables, we demonstrate that among the solutions we found, there exist spacetime geometries that lead to much weaker bounds on teleparallel gravity than those found earlier. Finally, we move on to a discussion of how the teleparallel perturbations influence the Hawking evaporation in these spacetimes.

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

10300 - Physical sciences

Project

<a href="/en/project/EF18_053%2F0016976" target="_blank" >EF18_053/0016976: International mobility of research, technical and administrative staff at the Charles University</a><br>

Continuities

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Publication year

2021

Confidentiality

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

Name of the periodical

Universe

ISSN

2218-1997

e-ISSN

—

Volume of the periodical

7

Issue of the periodical within the volume

5

Country of publishing house

CH - SWITZERLAND

Number of pages

19

Pages from-to

153

UT code for WoS article

000654623600001

EID of the result in the Scopus database

2-s2.0-85108257107