Статья

Black hole pulsar

Janna LevinBarnard College of Columbia University, New York, New York 10027, USA and Chair and Director of Sciences, Pioneer Works, 159 Pioneer Street, Brooklyn, New York 11231, USADaniel J. D’OrazioBarnard College of Columbia University, New York, New York 10027, USA and Chair and Director of Sciences, Pioneer Works, 159 Pioneer Street, Brooklyn, New York 11231, USASebastián García-SáenzBarnard College of Columbia University, New York, New York 10027, USA and Chair and Director of Sciences, Pioneer Works, 159 Pioneer Street, Brooklyn, New York 11231, USA

2018en

ABI

Аннотация

In anticipation of a LIGO detection of a black hole/neutron star merger, we expand on the intriguing possibility of an electromagnetic counterpart. Black hole/Neutron star mergers could be disappointingly dark since most black holes will be large enough to swallow a neutron star whole, without tidal disruption and without the subsequent fireworks. Encouragingly, we previously found a promising source of luminosity since the black hole and the highly magnetized neutron star establish an electronic circuit---a black hole battery. In this paper, arguing against common lore, we consider the electric charge of the black hole as an overlooked source of electromagnetic radiation. Relying on the well known Wald mechanism by which a spinning black hole immersed in an external magnetic field acquires a stable net charge, we show that a strongly magnetized neutron star in such a binary system will give rise to a large enough charge in the black hole to allow for potentially observable effects. Although the maximum charge is stable, we show there is a continuous flux of charges contributing to the luminosity. Most interestingly, the spinning charged black hole then creates its own magnetic dipole to power a black hole pulsar.

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Идентификаторы

DOI: 10.1103/physrevd.98.123002

Цитирования и источники

Цитирований: 2Использованных источников: 0

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