Generating vorticity and magnetic fields in plasmas in general relativity: Spacetime curvature drive

Felipe A. Asenjo; Swadesh M. Mahajan; Asghar Qadir

doi:10.1063/1.4792257

Generating vorticity and magnetic fields in plasmas in general relativity: Spacetime curvature drive

Felipe A. Asenjo, Swadesh M. Mahajan, Asghar Qadir

Research output: Contribution to journal › Article › peer-review

24 Scopus citations

Abstract

Using the generally covariant magnetofluid formalism for a hot plasma, a spacetime curvature driven mechanism for generating seed vorticity/magnetic field is presented. The "battery" owes its origin to the interaction between the gravity modified Lorentz factor of the fluid element and the inhomogeneous plasma thermodynamics. The general relativistic drive is evaluated for two simple cases: seed formation in a simplified model of a hot plasma accreting in stable orbits around a Schwarzschild black hole and for particles in free fall near the horizon. Some astrophysical applications are suggested.

Original language	English
Article number	022901
Journal	Physics of Plasmas
Volume	20
Issue number	2
DOIs	https://doi.org/10.1063/1.4792257
State	Published - Feb 2013
Externally published	Yes

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title = "Generating vorticity and magnetic fields in plasmas in general relativity: Spacetime curvature drive",

abstract = "Using the generally covariant magnetofluid formalism for a hot plasma, a spacetime curvature driven mechanism for generating seed vorticity/magnetic field is presented. The {"}battery{"} owes its origin to the interaction between the gravity modified Lorentz factor of the fluid element and the inhomogeneous plasma thermodynamics. The general relativistic drive is evaluated for two simple cases: seed formation in a simplified model of a hot plasma accreting in stable orbits around a Schwarzschild black hole and for particles in free fall near the horizon. Some astrophysical applications are suggested.",

author = "Asenjo, {Felipe A.} and Mahajan, {Swadesh M.} and Asghar Qadir",

note = "Funding Information: The work of S.M.M. was supported by USDOE Contract No. DE-FG 03-96ER-54366. F.A.A. thanks the CONICyT-Chile for his Becas Chile Postdoctoral Fellowship No. 74110049.",

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N1 - Funding Information: The work of S.M.M. was supported by USDOE Contract No. DE-FG 03-96ER-54366. F.A.A. thanks the CONICyT-Chile for his Becas Chile Postdoctoral Fellowship No. 74110049.

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N2 - Using the generally covariant magnetofluid formalism for a hot plasma, a spacetime curvature driven mechanism for generating seed vorticity/magnetic field is presented. The "battery" owes its origin to the interaction between the gravity modified Lorentz factor of the fluid element and the inhomogeneous plasma thermodynamics. The general relativistic drive is evaluated for two simple cases: seed formation in a simplified model of a hot plasma accreting in stable orbits around a Schwarzschild black hole and for particles in free fall near the horizon. Some astrophysical applications are suggested.

AB - Using the generally covariant magnetofluid formalism for a hot plasma, a spacetime curvature driven mechanism for generating seed vorticity/magnetic field is presented. The "battery" owes its origin to the interaction between the gravity modified Lorentz factor of the fluid element and the inhomogeneous plasma thermodynamics. The general relativistic drive is evaluated for two simple cases: seed formation in a simplified model of a hot plasma accreting in stable orbits around a Schwarzschild black hole and for particles in free fall near the horizon. Some astrophysical applications are suggested.

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Generating vorticity and magnetic fields in plasmas in general relativity: Spacetime curvature drive

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