Model for how an accretion disk drives astrophysical jets and sheds angular momentum

Bellan, Paul M.

doi:10.1088/1361-6587/aa85f9

Title: Model for how an accretion disk drives astrophysical jets and sheds angular momentum

Journal Article · Thu Oct 12 00:00:00 EDT 2017 · Plasma Physics and Controlled Fusion

DOI:https://doi.org/10.1088/1361-6587/aa85f9· OSTI ID:1502094

Bellan, Paul M. ^[1]

California Inst. of Technology (CalTech), Pasadena, CA (United States)

Clumps of ions and neutrals in the weakly ionized plasma in an accretion disk are shown to follow trajectories analogous to those of fictitious 'metaparticles' having a charge to mass ratio reduced from that of an ion by the ionization fraction. A certain class of meta-particles have zero-canonical angular momentum and so spiral in towards the star. Accumulation of these meta-particles establishes a radial electric field that drives the electric current that flows in bidirectional astrophysical jets lying along the disk axis and provides forces that drive the jets. In conclusion, the entire process converts gravitational potential energy into jet energy while absorbing angular momentum from accreting material and shedding this angular momentum at near infinite radius.

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Research Organization:: California Institute of Technology (CalTech), Pasadena, CA (United States)

Sponsoring Organization:: USDOE

Grant/Contract Number:: FG02-04ER54755

OSTI ID:: 1502094

Journal Information:: Plasma Physics and Controlled Fusion, Vol. 60, Issue 1; ISSN 0741-3335

Publisher:: IOP ScienceCopyright Statement

Country of Publication:: United States

Language:: English

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Cited by: 5 works

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Experiments and models of MHD jets and their relevance to astrophysics and solar physics Bellan, Paul M. Physics of Plasmas, Vol. 25, Issue 5 https://doi.org/10.1063/1.5009571	journal	May 2018
Parallel propagation and damping of electromagnetic waves in a partially ionized plasma with multiple species Huang, Yifan; Tu, Jiannan; Song, Paul Physics of Plasmas, Vol. 25, Issue 12 https://doi.org/10.1063/1.5053119	journal	December 2018

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Title: Model for how an accretion disk drives astrophysical jets and sheds angular momentum

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References (26)

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