Primordial Black Holes having Gravitomagnetic Monopole

Abstract

A primordial black hole (PBH) is thought to be made of the regular matter or ordinary mass ($M$) only, and hence could have already been decayed due to the Hawking radiation if its initial ordinary mass were $\lesssim 5\times 10^{11}$ kg. Here, we study the role of gravitomagnetic monopole for the evaporation of PBHs, and propose that the lower energy PBHs (equivalent to ordinary mass $M<<5\times 10^{11}$ kg) could still exist in our present Universe, if it has gravitomagnetic monopole. If a PBH was initially made of both regular matter and gravitomagnetic monopole, the regular matter could decay away due to the Hawking radiation. The remnant gravitomagnetic monopole might not entirely decay, which could still be found as a PBH in the form of the pseudo `mass-energy'. If a PBH with $M\gtrsim 5\times 10^{11}$ kg is detected, one may not be able to conclude if it has gravitomagnetic monopole. But, a plausible detection of a relatively low energy (equivalent to $2.176\times 10^{-8}$ kg $<M\lesssim 5\times 10^{11}$ kg) PBH in future may imply the existence of a gravitomagnetic monopole PBH, which may or may not contain the ordinary mass.

arXiv comment6 pages, accepted for publication in Phys. Rev. D

References in corpus (17)

• Tunnelling, Temperature and Taub-NUT Black Holes
• Classical Monopoles: Newton, NUT-space, gravomagnetic lensing and atomic spectra
• Nut Charge, Anti-de Sitter Space and Entropy
• Gravitational Entropy and Global Structure
• Analytic treatment of complete and incomplete geodesics in Taub-NUT space-times
• Particle Acceleration on the Background of the Kerr-Taub-NUT Spacetime
• Rehabilitating space-times with NUTs
• Thermodynamics of Lorentzian Taub-NUT spacetimes
• NUT wormholes
• Strong gravity Lense-Thirring Precession in Kerr and Kerr-Taub-NUT spacetimes
• Does the gravitomagnetic monopole exist? A clue from a black hole x-ray binary
• Circular orbits in Kerr-Taub-NUT spacetime and their implications for accreting black holes and naked singularities
• Transient solar oscillations driven by primordial black holes
• A Note on the Instability of Lorentzian Taub-NUT-Space
• Gravitational Analogues, Geometric Effects and Gravitomagnetic Charge
• Anomalous Lense-Thirring precession in Kerr-Taub-NUT spacetimes
• Analog Particle Production Model for General Classes of Taub-NUT Black Holes

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• Magnetically arrested transmutation of a compact star