Stable configurations of PSR J0952-0607 by using anisotropic generalized Tolman-Kuchowicz spacetime
Identifikátory výsledku
Kód výsledku v IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61989100%3A27740%2F25%3A10259596" target="_blank" >RIV/61989100:27740/25:10259596 - isvavai.cz</a>
Výsledek na webu
<a href="https://link.springer.com/article/10.1140/epjp/s13360-025-07176-1" target="_blank" >https://link.springer.com/article/10.1140/epjp/s13360-025-07176-1</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1140/epjp/s13360-025-07176-1" target="_blank" >10.1140/epjp/s13360-025-07176-1</a>
Alternativní jazyky
Jazyk výsledku
angličtina
Název v původním jazyce
Stable configurations of PSR J0952-0607 by using anisotropic generalized Tolman-Kuchowicz spacetime
Popis výsledku v původním jazyce
In this work, we present solutions to Einstein's field equations using a generalized Tolman-Kuchowicz metric with van der Waals equation of state. The model is applied on compact star PSR J0952-0607 in a static, spherically symmetric and anisotropic regime. The selected pulsar PSR J0952-0607 is known as the most massive neutron star to date, which captures the thermodynamic behavior of dense stellar matter more realistically. To ensure physical viability, the model is examined under the Tolman-Oppenheimer-Volkoff equilibrium condition, balancing internal pressure against gravitational pull. The resulting configurations satisfy essential physical conditions, including causality, energy conditions, appropriate adiabatic index bounds, and Herrera's cracking criterion. The presented solutions remain regular at the center and are free from singularities. A detailed graphical analysis demonstrates the model's stability and sensitivity across different values of the generalized Tolman-Kuchowicz parametric values n=1,1.5,2,2.5documentclass[12pt]{minimal} usepackage{amsmath} usepackage{wasysym} usepackage{amsfonts} usepackage{amssymb} usepackage{amsbsy} usepackage{mathrsfs} usepackage{upgreek} setlength{oddsidemargin}{-69pt} begin{document}$$n=1,1.5,2,2.5$$end{document}. These results offer valuable insights into the internal structure and stability of ultra-massive compact stars in modified relativistic frameworks.
Název v anglickém jazyce
Stable configurations of PSR J0952-0607 by using anisotropic generalized Tolman-Kuchowicz spacetime
Popis výsledku anglicky
In this work, we present solutions to Einstein's field equations using a generalized Tolman-Kuchowicz metric with van der Waals equation of state. The model is applied on compact star PSR J0952-0607 in a static, spherically symmetric and anisotropic regime. The selected pulsar PSR J0952-0607 is known as the most massive neutron star to date, which captures the thermodynamic behavior of dense stellar matter more realistically. To ensure physical viability, the model is examined under the Tolman-Oppenheimer-Volkoff equilibrium condition, balancing internal pressure against gravitational pull. The resulting configurations satisfy essential physical conditions, including causality, energy conditions, appropriate adiabatic index bounds, and Herrera's cracking criterion. The presented solutions remain regular at the center and are free from singularities. A detailed graphical analysis demonstrates the model's stability and sensitivity across different values of the generalized Tolman-Kuchowicz parametric values n=1,1.5,2,2.5documentclass[12pt]{minimal} usepackage{amsmath} usepackage{wasysym} usepackage{amsfonts} usepackage{amssymb} usepackage{amsbsy} usepackage{mathrsfs} usepackage{upgreek} setlength{oddsidemargin}{-69pt} begin{document}$$n=1,1.5,2,2.5$$end{document}. These results offer valuable insights into the internal structure and stability of ultra-massive compact stars in modified relativistic frameworks.
Klasifikace
Druh
J<sub>imp</sub> - Článek v periodiku v databázi Web of Science
CEP obor
—
OECD FORD obor
10100 - Mathematics
Návaznosti výsledku
Projekt
<a href="/cs/project/EH23_021%2F0008759" target="_blank" >EH23_021/0008759: Zvýšení odolnosti energetických sítí v kontextu dekarbonizace, decentralizace a udržitelného socioekonomického rozvoje</a><br>
Návaznosti
P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)
Ostatní
Rok uplatnění
2025
Kód důvěrnosti údajů
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Údaje specifické pro druh výsledku
Název periodika
European Physical Journal Plus
ISSN
2190-5444
e-ISSN
—
Svazek periodika
140
Číslo periodika v rámci svazku
12
Stát vydavatele periodika
DE - Spolková republika Německo
Počet stran výsledku
14
Strana od-do
1231
Kód UT WoS článku
001642878900001
EID výsledku v databázi Scopus
2-s2.0-105025367570