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arXiv · 2410.10920

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

Anna Horváth·Emese Forgács-Dajka·Gergely Gábor Barnaföldi
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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.

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Anna Horváth, Emese Forgács-Dajka, Gergely Gábor Barnaföldi. 2024-10-14. The effect of multiple extra dimensions on the maximal mass of compact stars in Kaluza-Klein space-time. https://doi.org/10.1142/s0217751x25420047

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