Stable configurations of PSR J0952-0607 by using anisotropic generalized Tolman-Kuchowicz spacetime
The result's identifiers
Result code in 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>
Result on the web
<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>
Alternative languages
Result language
angličtina
Original language name
Stable configurations of PSR J0952-0607 by using anisotropic generalized Tolman-Kuchowicz spacetime
Original language description
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.
Czech name
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Czech description
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Classification
Type
J<sub>imp</sub> - Article in a specialist periodical, which is included in the Web of Science database
CEP classification
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OECD FORD branch
10100 - Mathematics
Result continuities
Project
<a href="/en/project/EH23_021%2F0008759" target="_blank" >EH23_021/0008759: Increasing the resilience of power grids in the context of decarbonisation, decentralisation and sustainable socio-economic development</a><br>
Continuities
P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)
Others
Publication year
2025
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Name of the periodical
European Physical Journal Plus
ISSN
2190-5444
e-ISSN
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Volume of the periodical
140
Issue of the periodical within the volume
12
Country of publishing house
DE - GERMANY
Number of pages
14
Pages from-to
1231
UT code for WoS article
001642878900001
EID of the result in the Scopus database
2-s2.0-105025367570