PIA21937: Jupiter's Auroras Acceleration Processes

Jupiter’s Auroras Acceleration Processes


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Figure 1
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This image, created with data from Juno's Ultraviolet Imaging Spectrometer (UVS), marks the path of Juno's readings of Jupiter's auroras, highlighting the electron measurements that show the discovery of the so-called discrete auroral acceleration processes indicated by the "inverted Vs" in the lower panel (Figure 1). This signature points to powerful magnetic-field-aligned electric potentials that accelerate electrons toward the atmosphere to energies that are far greater than what drive the most intense aurora at Earth. Scientists are looking into why the same processes are not the main factor in Jupiter's most powerful auroras.

Background Info:

More information about Juno is online at http://www.nasa.gov/juno and http://missionjuno.swri.edu .

NASA's Jet Propulsion Laboratory manages the Juno mission for the principal investigator, Scott Bolton, of Southwest Research Institute in San Antonio. Juno is part of NASA's New Frontiers Program, which is managed at NASA's Marshall Space Flight Center in Huntsville, Alabama, for NASA's Science Mission Directorate. Lockheed Martin Space Systems, Denver, built the spacecraft. Caltech in Pasadena, California, manages JPL for NASA.

Cataloging Keywords:

Name Value Additional Values
Target Jupiter Earth
System Jupiter Earth
Target Type Planet Earth
Mission Juno
Instrument Host Juno
Host Type Orbiter
Extra Keywords Atmosphere, Color, Magnetosphere, Ultraviolet
Acquisition Date
Release Date 2017-09-06
Date in Caption
Image Credit NASA/JPL-Caltech/SwRI
Source photojournal.jpl.nasa.gov/catalog/PIA21937
Identifier PIA21937