The effect of multiple extra dimensions on the maximal mass of compact stars in Kaluza-Klein space-time

Abstract

Compact stars in the Kaluza-Klein space-time are investigated, with multiple additional compactified spatial dimensions ($d$). Within the extended phenomenological model, a static, spherically symmetric solution is considered, with the equation of state provided by a zero temperature, interacting multi-dimensional Fermi gas. The maximal masses of compact stars are calculated for different model parameters. We investigated the effect of the existence of multiple extra compactified dimensions within the Kaluza-Klein compact star structure. We found that the number of extra dimensions plays a similar role, and to a similar order, as the excitation number: increasing their number, $d$, reduces the maximal mass by a few percent.

arXiv comment12 pages, 4 figures, submitted to Zimányi School 2023

References in corpus (27)

• A Massive Pulsar in a Compact Relativistic Binary
• The equation of state for nucleon matter and neutron star structure
• GW170817: Measurements of Neutron Star Radii and Equation of State
• Neutron Star Structure and the Equation of State
• Masses, Radii, and Equation of State of Neutron Stars
• A unified equation of state of dense matter and neutron star structure
• Gravitational-wave constraints on the neutron-star-matter Equation of State
• Refined Mass and Geometric Measurements of the High-Mass PSR J0740+6620
• Constraints on a phenomenologically parameterized neutron-star equation of state
• Hybrid stars that masquerade as neutron stars
• Tidal Deformabilities and Radii of Neutron Stars from the Observation of GW170817
• Cold Quark Matter
• Relativistic Mean-Field Theory and the High-Density Nuclear Equation of State
• Asymmetric Nuclear Matter from Extended Brueckner-Hartree-Fock Approach
• Analytical representations of unified equations of state for neutron-star matter
• First Order Kaon Condensate
• Dense Matter in Compact Stars: Theoretical Developments and Observational Constraints
• Observational constraints on hyperons in neutron stars
• An Effective Equation of State for Dense Matter with Strangeness
• Cold uniform matter and neutron stars in the quark-mesons-coupling model
• Asymmetric nuclear matter and neutron star properties
• Uncertainties in the pasta-phase properties of catalysed neutron stars
• Studying the parameters of the extended $\sigma$-$\omega$ model for neutron star matter
• Quark-hadron pasta phase in neutron stars: the role of medium-dependent surface and curvature tensions
• Studying the Landau mass parameter of the extended $\sigma$-$\omega$ model for neutron star matter
• Searching Extra Dimensions in Compact Stars
• Application of Kaluza-Klein Theory in Modeling Compact Stars: Exploring Extra Dimensions