50 years of energy extraction from rotating black hole: revisiting magnetic Penrose process. (arXiv:1905.05321v1 [astro-ph.HE])

50 years of energy extraction from rotating black hole: revisiting magnetic Penrose process. (arXiv:1905.05321v1 [astro-ph.HE])
<a href="http://arxiv.org/find/astro-ph/1/au:+Tursunov_A/0/1/0/all/0/1">Arman Tursunov</a>, <a href="http://arxiv.org/find/astro-ph/1/au:+Dadhich_N/0/1/0/all/0/1">Naresh Dadhich</a>

Magnetic Penrose process (MPP) is not only the most exciting and fascinating
process mining the rotational energy of black hole but it is also the favoured
astrophysically viable mechanism for high energy sources and phenomena. It
operates in three regimes of efficiency: low, moderate and ultra, depending on
the magnetization and charging of spinning black holes in astrophysical
setting. In this paper we revisit MPP with a comprehensive discussion of its
physics in different regimes, and compare its operation with other competing
mechanisms. We show that MPP could in principle foot the bill for powering
engine of such phenomena as ultra-high-energy cosmic rays, relativistic jets,
fast radio bursts, quasars and AGNs etc. Further it also leads to a number of
important observable predictions. All this beautifully bears out the promise of
a new vista of energy powerhouse heralded by Roger Penrose half a century ago
through this process, and it has today risen in its magnetically empowered
version of mid 1980s from a purely thought experiment of academic interest to a
realistic powering mechanism for various high-energy astrophysical phenomena.

Magnetic Penrose process (MPP) is not only the most exciting and fascinating
process mining the rotational energy of black hole but it is also the favoured
astrophysically viable mechanism for high energy sources and phenomena. It
operates in three regimes of efficiency: low, moderate and ultra, depending on
the magnetization and charging of spinning black holes in astrophysical
setting. In this paper we revisit MPP with a comprehensive discussion of its
physics in different regimes, and compare its operation with other competing
mechanisms. We show that MPP could in principle foot the bill for powering
engine of such phenomena as ultra-high-energy cosmic rays, relativistic jets,
fast radio bursts, quasars and AGNs etc. Further it also leads to a number of
important observable predictions. All this beautifully bears out the promise of
a new vista of energy powerhouse heralded by Roger Penrose half a century ago
through this process, and it has today risen in its magnetically empowered
version of mid 1980s from a purely thought experiment of academic interest to a
realistic powering mechanism for various high-energy astrophysical phenomena.

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