Electron Energization by Inertial Alfvén Waves in Density Depleted Flux Tubes at Jupiter

Damiano, P. A.; Delamere, P. A.; Kim, E. ‐H.; Johnson, J. R.; Ng, C. S.

doi:10.1029/2022gl102467

Title: Electron Energization by Inertial Alfvén Waves in Density Depleted Flux Tubes at Jupiter

Abstract

Juno satellite observations have illustrated substantial examples of broadband electron energization up to 10⁵–10⁶ eV levels. In order to explain these observations, we use a hybrid gyrofluid kinetic-electron model in an untilted dipolar topology to illustrate energization to high levels in weak current conditions by inertial Alfvén waves close to the Jupiter ionosphere for ambient plasma densities and magnetic field perturbations inferred from Juno satellite observations. The key to the high energization is the extremely low densities evident in the observations which necessitates the acceleration of electrons to very high velocities in order to carry the field-aligned current.

Authors:

^[1];

^[2];

^[3];

^[1]

Univ. of Alaska, Fairbanks, AK (United States)
Princeton Plasma Physics Lab. (PPPL), Princeton, NJ (United States)
Andrews Univ., Berrien Springs, MI (United States)

Publication Date:: Fri Feb 24 00:00:00 EST 2023

Research Org.:: Princeton Plasma Physics Laboratory (PPPL), Princeton, NJ (United States)

Sponsoring Org.:: USDOE Office of Science (SC), Fusion Energy Sciences (FES); National Aeronautics and Space Administration (NASA)

OSTI Identifier:: 1974426

Grant/Contract Number:: AC02-09CH11466; 80NSSC19K0941; 80NSSC20K1279; 80NSSC19K0843; 80HQTR19T0076

Resource Type:: Accepted Manuscript

Journal Name:: Geophysical Research Letters

Additional Journal Information:: Journal Volume: 50; Journal Issue: 5; Journal ID: ISSN 0094-8276

Publisher:: American Geophysical Union (AGU)

Country of Publication:: United States

Language:: English

Subject:: 58 GEOSCIENCES

Citation Formats


                    Damiano, P. A., Delamere, P. A., Kim, E. ‐H., Johnson, J. R., and Ng, C. S. Electron Energization by Inertial Alfvén Waves in Density Depleted Flux Tubes at Jupiter.  United States: N. p., 2023. 
Web.  doi:10.1029/2022gl102467.

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                    Damiano, P. A., Delamere, P. A., Kim, E. ‐H., Johnson, J. R., & Ng, C. S. Electron Energization by Inertial Alfvén Waves in Density Depleted Flux Tubes at Jupiter.  United States.  https://doi.org/10.1029/2022gl102467

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                    Damiano, P. A., Delamere, P. A., Kim, E. ‐H., Johnson, J. R., and Ng, C. S. Fri .  
"Electron Energization by Inertial Alfvén Waves in Density Depleted Flux Tubes at Jupiter".  United States.  https://doi.org/10.1029/2022gl102467.  https://www.osti.gov/servlets/purl/1974426.

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@article{osti_1974426,

  title        = {Electron Energization by Inertial Alfvén Waves in Density Depleted Flux Tubes at Jupiter},

  author       = {Damiano, P. A. and Delamere, P. A. and Kim, E. ‐H. and Johnson, J. R. and Ng, C. S.},

  abstractNote = {Juno satellite observations have illustrated substantial examples of broadband electron energization up to 105–106 eV levels. In order to explain these observations, we use a hybrid gyrofluid kinetic-electron model in an untilted dipolar topology to illustrate energization to high levels in weak current conditions by inertial Alfvén waves close to the Jupiter ionosphere for ambient plasma densities and magnetic field perturbations inferred from Juno satellite observations. The key to the high energization is the extremely low densities evident in the observations which necessitates the acceleration of electrons to very high velocities in order to carry the field-aligned current.},

  doi          = {10.1029/2022gl102467},

  journal      = {Geophysical Research Letters},

  number       = 5,

  volume       = 50,

  place        = {United States},

  year         = {Fri Feb 24 00:00:00 EST 2023},

  month        = {Fri Feb 24 00:00:00 EST 2023}

}

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Title: Electron Energization by Inertial Alfvén Waves in Density Depleted Flux Tubes at Jupiter

Abstract

Citation Formats

Wave‐Particle Interaction of Alfvén Waves in Jupiter's Magnetosphere: Auroral and Magnetospheric Particle Acceleration journal, November 2018

Electron Partial Density and Temperature Over Jupiter's Main Auroral Emission Using Juno Observations journal, September 2021

Electron acceleration by kinetic Alfvén waves journal, January 1994

Survey of Juno Observations in Jupiter's Plasma Disk: Density journal, July 2021

The Jovian Ionospheric Alfvén Resonator and Auroral Particle Acceleration journal, December 2021

Kinetic Simulations of Electron Acceleration by Dispersive Scale Alfvén Waves in Jupiter's Magnetosphere journal, March 2019

Electron acceleration in a geomagnetic Field Line Resonance: MIRROR FORCE EFFECTS WITHIN FLRS journal, January 2012

Alfvénic Acceleration Sustains Ganymede's Footprint Tail Aurora journal, February 2020

Jupiter's Low‐Altitude Auroral Zones: Fields, Particles, Plasma Waves, and Density Depletions journal, August 2022

The Jovian Auroral Distributions Experiment (JADE) on the Juno Mission to Jupiter journal, May 2013

A kinetic-fluid model journal, January 1999

Electron beams and loss cones in the auroral regions of Jupiter journal, July 2017

Alfvénic Fluctuations Associated With Jupiter's Auroral Emissions journal, July 2019

Discrete and broadband electron acceleration in Jupiter’s powerful aurora journal, September 2017

In Situ Observations Connected to the Io Footprint Tail Aurora journal, November 2018

Magnetosphere-ionosphere coupling journal, January 1979

Coherent anomalous resistivity in the region of electrostatic shocks journal, August 1979

A New Framework to Explain Changes in Io's Footprint Tail Electron Fluxes journal, September 2020

Electron thermal effects in standing shear Alfvén waves: ELECTRON ACCELERATION IN FLRS journal, September 2008

Semirelativistic Magnetohydrodynamics and Physics-Based Convergence Acceleration journal, March 2002

On the kinetic dispersion relation for shear Alfvén waves journal, March 1996

Energy Flux and Characteristic Energy of Electrons Over Jupiter's Main Auroral Emission journal, March 2020

Broadband Energization of Superthermal Electrons in Jupiter’s Inner Magnetosphere journal, August 2022

Power transmission and particle acceleration along the Io flux tube journal, June 2010

Evidence of Alfvénic Activity in Jupiter's Mid‐To‐High Latitude Magnetosphere journal, May 2022

Wave‐Particle Interactions Associated With Io's Auroral Footprint: Evidence of Alfvén, Ion Cyclotron, and Whistler Modes journal, November 2020

Ion gyroradius effects on particle trapping in kinetic Alfvén waves along auroral field lines: PARTICLE TRAPPING IN KAWS journal, November 2016

Ion temperature effects on magnetotail Alfvén wave propagation and electron energization: ION TEMPERATURE EFFECTS ON ALFVÉN WAVES journal, July 2015

Inertial Alfvén waves and acceleration of electrons in nonuniform magnetic fields journal, January 2006

Two-dimensional hybrid MHD-kinetic electron simulations of an Alfvén wave pulse journal, January 2005

The Jupiter Energetic Particle Detector Instrument (JEDI) Investigation for the Juno Mission journal, November 2013

Kinetic simulations of electron response to shear Alfvén waves in magnetospheric plasmas journal, April 2004

Self-consistent electron acceleration due to inertial Alfvén wave pulses journal, January 2005

Wave‐Particle Interaction of Alfvén Waves in Jupiter's Magnetosphere: Auroral and Magnetospheric Particle Acceleration
journal, November 2018

Electron Partial Density and Temperature Over Jupiter's Main Auroral Emission Using Juno Observations
journal, September 2021

Electron acceleration by kinetic Alfvén waves
journal, January 1994

Survey of Juno Observations in Jupiter's Plasma Disk: Density
journal, July 2021

The Jovian Ionospheric Alfvén Resonator and Auroral Particle Acceleration
journal, December 2021

Kinetic Simulations of Electron Acceleration by Dispersive Scale Alfvén Waves in Jupiter's Magnetosphere
journal, March 2019

Electron acceleration in a geomagnetic Field Line Resonance: MIRROR FORCE EFFECTS WITHIN FLRS
journal, January 2012

Alfvénic Acceleration Sustains Ganymede's Footprint Tail Aurora
journal, February 2020

Jupiter's Low‐Altitude Auroral Zones: Fields, Particles, Plasma Waves, and Density Depletions
journal, August 2022

The Jovian Auroral Distributions Experiment (JADE) on the Juno Mission to Jupiter
journal, May 2013

A kinetic-fluid model
journal, January 1999

Electron beams and loss cones in the auroral regions of Jupiter
journal, July 2017

Alfvénic Fluctuations Associated With Jupiter's Auroral Emissions
journal, July 2019

Discrete and broadband electron acceleration in Jupiter’s powerful aurora
journal, September 2017

In Situ Observations Connected to the Io Footprint Tail Aurora
journal, November 2018

Magnetosphere-ionosphere coupling
journal, January 1979

Coherent anomalous resistivity in the region of electrostatic shocks
journal, August 1979

A New Framework to Explain Changes in Io's Footprint Tail Electron Fluxes
journal, September 2020

Electron thermal effects in standing shear Alfvén waves: ELECTRON ACCELERATION IN FLRS
journal, September 2008

Semirelativistic Magnetohydrodynamics and Physics-Based Convergence Acceleration
journal, March 2002

On the kinetic dispersion relation for shear Alfvén waves
journal, March 1996

Energy Flux and Characteristic Energy of Electrons Over Jupiter's Main Auroral Emission
journal, March 2020

Broadband Energization of Superthermal Electrons in Jupiter’s Inner Magnetosphere
journal, August 2022

Power transmission and particle acceleration along the Io flux tube
journal, June 2010

Evidence of Alfvénic Activity in Jupiter's Mid‐To‐High Latitude Magnetosphere
journal, May 2022

Wave‐Particle Interactions Associated With Io's Auroral Footprint: Evidence of Alfvén, Ion Cyclotron, and Whistler Modes
journal, November 2020

Ion gyroradius effects on particle trapping in kinetic Alfvén waves along auroral field lines: PARTICLE TRAPPING IN KAWS
journal, November 2016

Ion temperature effects on magnetotail Alfvén wave propagation and electron energization: ION TEMPERATURE EFFECTS ON ALFVÉN WAVES
journal, July 2015

Inertial Alfvén waves and acceleration of electrons in nonuniform magnetic fields
journal, January 2006

Two-dimensional hybrid MHD-kinetic electron simulations of an Alfvén wave pulse
journal, January 2005

The Jupiter Energetic Particle Detector Instrument (JEDI) Investigation for the Juno Mission
journal, November 2013

Kinetic simulations of electron response to shear Alfvén waves in magnetospheric plasmas
journal, April 2004

Self-consistent electron acceleration due to inertial Alfvén wave pulses
journal, January 2005