Black Holes with a Cloud of Strings and Quintessence in a Non-Linear Electrodynamics Scenario

We obtain exact black hole solutions to Einstein gravity coupled with a nonlinear electrodynamics field, in the presence of a cloud of strings and quintessence, as sources. The solutions have four parameters, namely <i>m</i>, <i>k</i>, <i>a</i>, and <inline-for...

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Main Authors: Francinaldo Florencio do Nascimento, Valdir Barbosa Bezerra, Jefferson de Morais Toledo
Format: Article
Language:English
Published: MDPI AG 2024-11-01
Series:Universe
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Online Access:https://www.mdpi.com/2218-1997/10/11/430
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author Francinaldo Florencio do Nascimento
Valdir Barbosa Bezerra
Jefferson de Morais Toledo
author_facet Francinaldo Florencio do Nascimento
Valdir Barbosa Bezerra
Jefferson de Morais Toledo
author_sort Francinaldo Florencio do Nascimento
collection DOAJ
description We obtain exact black hole solutions to Einstein gravity coupled with a nonlinear electrodynamics field, in the presence of a cloud of strings and quintessence, as sources. The solutions have four parameters, namely <i>m</i>, <i>k</i>, <i>a</i>, and <inline-formula><math xmlns="http://www.w3.org/1998/Math/MathML" display="inline"><semantics><mi>α</mi></semantics></math></inline-formula>, corresponding to the physical mass of the black hole, the nonlinear charge of a self-gravitating magnetic field, the cloud of strings, and the intensity of the quintessential fluid. The consequences of these sources on the regularity or singularity of the solutions, on their horizons, as well as on the energy conditions, are discussed. We study some aspects concerning the thermodynamics of the black hole, by taking into account the mass, Hawking temperature, and heat capacity and show how these quantities depend on the presence of the cloud of strings and quintessence, in the scenario considered.
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spelling doaj-art-d3aebb45381d4c908206045a88a81e292025-08-20T02:04:44ZengMDPI AGUniverse2218-19972024-11-01101143010.3390/universe10110430Black Holes with a Cloud of Strings and Quintessence in a Non-Linear Electrodynamics ScenarioFrancinaldo Florencio do Nascimento0Valdir Barbosa Bezerra1Jefferson de Morais Toledo2Physics Department, Federal University of Paraíba, Caixa Postal 5008, João Pessoa 58059-900, PB, BrazilPhysics Department, Federal University of Paraíba, Caixa Postal 5008, João Pessoa 58059-900, PB, BrazilPhysics Department, Federal University of Paraíba, Caixa Postal 5008, João Pessoa 58059-900, PB, BrazilWe obtain exact black hole solutions to Einstein gravity coupled with a nonlinear electrodynamics field, in the presence of a cloud of strings and quintessence, as sources. The solutions have four parameters, namely <i>m</i>, <i>k</i>, <i>a</i>, and <inline-formula><math xmlns="http://www.w3.org/1998/Math/MathML" display="inline"><semantics><mi>α</mi></semantics></math></inline-formula>, corresponding to the physical mass of the black hole, the nonlinear charge of a self-gravitating magnetic field, the cloud of strings, and the intensity of the quintessential fluid. The consequences of these sources on the regularity or singularity of the solutions, on their horizons, as well as on the energy conditions, are discussed. We study some aspects concerning the thermodynamics of the black hole, by taking into account the mass, Hawking temperature, and heat capacity and show how these quantities depend on the presence of the cloud of strings and quintessence, in the scenario considered.https://www.mdpi.com/2218-1997/10/11/430black holecloud of stringsquintessencenon-linear electrodynamics
spellingShingle Francinaldo Florencio do Nascimento
Valdir Barbosa Bezerra
Jefferson de Morais Toledo
Black Holes with a Cloud of Strings and Quintessence in a Non-Linear Electrodynamics Scenario
Universe
black hole
cloud of strings
quintessence
non-linear electrodynamics
title Black Holes with a Cloud of Strings and Quintessence in a Non-Linear Electrodynamics Scenario
title_full Black Holes with a Cloud of Strings and Quintessence in a Non-Linear Electrodynamics Scenario
title_fullStr Black Holes with a Cloud of Strings and Quintessence in a Non-Linear Electrodynamics Scenario
title_full_unstemmed Black Holes with a Cloud of Strings and Quintessence in a Non-Linear Electrodynamics Scenario
title_short Black Holes with a Cloud of Strings and Quintessence in a Non-Linear Electrodynamics Scenario
title_sort black holes with a cloud of strings and quintessence in a non linear electrodynamics scenario
topic black hole
cloud of strings
quintessence
non-linear electrodynamics
url https://www.mdpi.com/2218-1997/10/11/430
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AT valdirbarbosabezerra blackholeswithacloudofstringsandquintessenceinanonlinearelectrodynamicsscenario
AT jeffersondemoraistoledo blackholeswithacloudofstringsandquintessenceinanonlinearelectrodynamicsscenario