Packing extra mass in compact stellar structures: An interplay between Kalb-Ramond field and extra dimensions

Abstract

We have derived the Buchdahl's limit for a relativistic star in presence of the Kalb-Ramond field in four as well as in higher dimensions. It turns out that the Buchdahl's limit gets severely affected by the inclusion of the Kalb-Ramond field. In particular, the Kalb-Ramond field in four spacetime dimensions enables one to pack extra mass in any compact stellar structure of a given radius. On the other hand, a completely opposite picture emerges if the Kalb-Ramond field exists in higher dimensions, where the mass content of a compact star is smaller compared to that in general relativity. Implications are discussed.

Revised; 25 pages; 3 figures; Published in JCAP

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• Imprints of dark matter on the structural properties of minimally deformed compact stars
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• Does space-time torsion determine the minimum mass of gravitating particles?
• Fluid pulsation modes from strange stars in a higher-dimensional space-time
• Cosmological Dark sector from a Mimetic-Metric-Torsion perspective
• Experimental signatures of Kalb-Ramond-like particles
• Tipler Naked Singularities in $N$ Dimensions