Structural features and physical properties of charged X-ray binaries in f(T) modified gravity under Tolman–Kuchowicz spacetime

Current study is focused on singularity free modeling of the massive and charged compact objects like X 5 and X 7 in the framework of f ( T ) modified gravity, where T is the torsional scalar. The modified Chaplygin Gas equation of state has been utilized to describe the core stellar matter. The int...

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Veröffentlicht in:European physical journal plus Jg. 140; H. 1; S. 76
1. Verfasser: Bandyopadhyay, Mayukh
Format: Journal Article
Sprache:Englisch
Veröffentlicht: Berlin/Heidelberg Springer Berlin Heidelberg 28.01.2025
Springer Nature B.V
Schlagworte:
Acoustic velocity
Anisotropy
Applied and Technical Physics
Atomic
Chaplygin gas
Complex Systems
Condensed Matter Physics
Deformation effects
Equations of state
Exact solutions
Formability
Geometry
Gravitational waves
Gravity
Investigations
Mathematical and Computational Physics
Molecular
Neutrons
Optical and Plasma Physics
Parameter modification
Phase transitions
Physical properties
Physics
Physics and Astronomy
Red shift
Regular Article
Relativistic velocity
Relativity
Singularities
Spacetime
Stability criteria
Stars
Theoretical
X ray binaries
X ray stars
ISSN:2190-5444, 2190-5444
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Zusammenfassung:Current study is focused on singularity free modeling of the massive and charged compact objects like X 5 and X 7 in the framework of f ( T ) modified gravity, where T is the torsional scalar. The modified Chaplygin Gas equation of state has been utilized to describe the core stellar matter. The interior spacetime of the compact stars is matched with exterior Reissner-Nordström spacetime at the boundary of the star. We have obtained an exact singularity-free analytical solution for anisotropic compact stars under hydrostatic equilibrium. The stability criteria of the compact objects in the background of f ( T ) modified gravity with small positive parameter ξ have been investigated. The mass-radius relation also has been acquired for this current realistic model. Further, we have also evaluated a few important properties such as energy density, compactness factor, sound velocities, effective pressures, tidal deformability, relativistic adiabatic index, and surface-redshift of the charged NSs, to check the physical validity of the current model. Moreover, we have found that charge has a great impact on the mass-radius relation. Interestingly, the pressure anisotropy plays a significant role to maintain a stable compact structure under hydrostatic equilibrium. The obtained results are highly compatible with various astrophysical observations as well.
Bibliographie:ObjectType-Article-1
SourceType-Scholarly Journals-1
ObjectType-Feature-2
content type line 14
ISSN:2190-5444
2190-5444
DOI:10.1140/epjp/s13360-025-06003-x