The newborn black hole in GRB 191014C proves that it is alive. (arXiv:1911.07552v3 [astro-ph.HE] UPDATED)

The newborn black hole in GRB 191014C proves that it is alive. (arXiv:1911.07552v3 [astro-ph.HE] UPDATED)
<a href="http://arxiv.org/find/astro-ph/1/au:+Moradi_R/0/1/0/all/0/1">R. Moradi</a>, <a href="http://arxiv.org/find/astro-ph/1/au:+Rueda_J/0/1/0/all/0/1">J. A. Rueda</a>, <a href="http://arxiv.org/find/astro-ph/1/au:+Ruffini_R/0/1/0/all/0/1">R. Ruffini</a>, <a href="http://arxiv.org/find/astro-ph/1/au:+Wang_Y/0/1/0/all/0/1">Y. Wang</a>

A multi-decade theoretical effort has been devoted to finding an efficient
mechanism to use the rotational and electrodynamical extractable energy of a
Kerr-Newman black hole (BH), to power the most energetic astrophysical sources
such as gamma-ray bursts (GRBs) and active galactic nuclei (AGN). We show an
efficient general relativistic electrodynamical process which occurs in the
“inner engine” of a binary driven hypernova (BdHN). The {inner engine} is
composed of a rotating Kerr BH of mass $M$ and dimensionless spin parameter
$alpha$, a magnetic field of strength $B_0$ aligned and parallel to the
rotation axis, and a very low-density ionized plasma. Here, we show that the
gravitomagnetic interaction between the BH and the magnetic field induces an
electric field that accelerates electrons and protons from the environment to
ultrarelativistic energies emitting synchrotron radiation. We show that in GRB
190114C the BH of mass $M = 4.4~M_odot$, $alpha= 0.4$, and $B_0 approx
4times 10^{10}$ G can lead to a high-energy ($gtrsim$GeV) luminosity of
$10^{51}$ erg s$^{-1}$. The inner engine parameters are determined by requiring
1) that the BH extractable energy explains the GeV and ultrahigh-energy
emission energetics, 2) that the emitted photons are not subjected to
magnetic-pair production, and 3) that the synchrotron radiation timescale
agrees with the observed high-energy timescale. We find for GRB 190114C a clear
jetted emission of GeV energies with a semi-aperture angle of approximately
$60^circ$ with respect to the BH rotation axis.

A multi-decade theoretical effort has been devoted to finding an efficient
mechanism to use the rotational and electrodynamical extractable energy of a
Kerr-Newman black hole (BH), to power the most energetic astrophysical sources
such as gamma-ray bursts (GRBs) and active galactic nuclei (AGN). We show an
efficient general relativistic electrodynamical process which occurs in the
“inner engine” of a binary driven hypernova (BdHN). The {inner engine} is
composed of a rotating Kerr BH of mass $M$ and dimensionless spin parameter
$alpha$, a magnetic field of strength $B_0$ aligned and parallel to the
rotation axis, and a very low-density ionized plasma. Here, we show that the
gravitomagnetic interaction between the BH and the magnetic field induces an
electric field that accelerates electrons and protons from the environment to
ultrarelativistic energies emitting synchrotron radiation. We show that in GRB
190114C the BH of mass $M = 4.4~M_odot$, $alpha= 0.4$, and $B_0 approx
4times 10^{10}$ G can lead to a high-energy ($gtrsim$GeV) luminosity of
$10^{51}$ erg s$^{-1}$. The inner engine parameters are determined by requiring
1) that the BH extractable energy explains the GeV and ultrahigh-energy
emission energetics, 2) that the emitted photons are not subjected to
magnetic-pair production, and 3) that the synchrotron radiation timescale
agrees with the observed high-energy timescale. We find for GRB 190114C a clear
jetted emission of GeV energies with a semi-aperture angle of approximately
$60^circ$ with respect to the BH rotation axis.

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