Gup-corrected black holes: thermodynamic properties, evaporation time and shadow constraint from EHT observations of M87*and Sgr A*

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F62690094%3A18470%2F24%3A50021721" target="_blank" >RIV/62690094:18470/24:50021721 - isvavai.cz</a>

Result on the web

<a href="https://link.springer.com/article/10.1140/epjp/s13360-024-05561-w" target="_blank" >https://link.springer.com/article/10.1140/epjp/s13360-024-05561-w</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1140/epjp/s13360-024-05561-w" target="_blank" >10.1140/epjp/s13360-024-05561-w</a>

Result language

angličtina

Original language name

Gup-corrected black holes: thermodynamic properties, evaporation time and shadow constraint from EHT observations of M87*and Sgr A*

Original language description

In this manuscript, we implement the generalized uncertainty principle (GUP) with linear and quadratic moment for Schwarzschild black hole metric in order to study the influence of quantum effect on the thermodynamics and evaporation of black hole. To this end, we first derive the GUP-modified Hawking temperature of a black hole in the semi-classical framework. Due to the existence of the GUP effect, there is a maximum Hawking temperature. We determine the entropy, heat capacity and Helmholtz free energy with heuristic analysis that investigates the particle absorbed by black hole. Furthermore, we also verify that these quantities are modified by the GUP, the influence of quantum effect on the black hole phase transition is discussed in detail. Then, we analyze the black hole evaporation process in the mentioned framework and examine the obtained results by graphical methods and compare them with each other. We likewise explore the behavior of the event horizon radius, photon sphere radius, and shadow silhouette when influenced by the GUP-corrected Schwarzschild black hole (GCSBH) parameters. We intend to establish restrictions for alpha by utilizing the event horizon telescope (EHT) data for M87* and Sagittarius A* (Sgr A*). Our findings show that Sgr A* provides more robust constraints. As the parameter beta grows, the range of constraints for alpha expands. For Sgr A* one, we find that the shadow radius is close to the observed value at smaller values of alpha.

Czech name

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Czech description

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Type

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

CEP classification

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OECD FORD branch

10308 - Astronomy (including astrophysics,space science)

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

The European physical journal plus

ISSN

2190-5444

e-ISSN

2190-5444

Volume of the periodical

139

Issue of the periodical within the volume

8

Country of publishing house

DE - GERMANY

Number of pages

14

Pages from-to

"Article Number: 759"

UT code for WoS article

001298032500001

EID of the result in the Scopus database

2-s2.0-85201936483