Stability analysis of charged neutron stars and Darmois junction conditions

This research article examines the impact of f ( Q , T ) theory on the geometry of charged neutron stars filled with anisotropic matter configuration. Here, Q represents non-metricity and T denotes the trace of energy-momentum tensor. We use a particular functional form of this modified theory to re...

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Bibliographic Details
Published in:The European physical journal. C, Particles and fields Particles and fields, 2024-08, Vol.84 (8), p.775-16, Article 775
Main Authors: Gul, M. Zeeshan, Sharif, M., Arooj, Adeeba, Jami, A. Rehman, Dayanandan, Baiju
Format: Article
Language:English
Subjects:
Anisotropy
Astronomy
Astrophysics and Cosmology
Elementary Particles
Equations of state
Hadrons
Heavy Ions
Impact analysis
Measurement Science and Instrumentation
Neutron stars
Neutrons
Nuclear Energy
Nuclear Physics
Parameter modification
Physical properties
Physics
Physics and Astronomy
Quantum Field Theories
Quantum Field Theory
Red shift
Regular Article - Theoretical Physics
Stability analysis
String Theory
Tensors
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Summary:This research article examines the impact of f ( Q , T ) theory on the geometry of charged neutron stars filled with anisotropic matter configuration. Here, Q represents non-metricity and T denotes the trace of energy-momentum tensor. We use a particular functional form of this modified theory to reduce the system’s complexity and derive explicit relations of the energy density and pressure components. Further, we consider viable non-singular solutions to analyze the internal structure of the charged neutron stars. The unspecified parameters in the metric coefficients are evaluated through Darmois junction conditions, which ensures consistency between interior and exterior solutions of the stellar objects. These parameters are then used to explore different physical characteristics such as the behavior of energy density, pressure components, anisotropy, energy bounds, equation of state parameter, compactness and redshift function in the interior of charged neutron stars. The stability and equilibrium states of the charged stellar objects are discussed using the Tolman–Oppenheimer–Volkoff equation and the speed of sound, respectively. Our results suggest that the charged neutron stars are viable and stable in the presence of dark source terms.
ISSN:1434-6052
1434-6044
1434-6052
DOI:10.1140/epjc/s10052-024-13156-z