LPAP members are official co-investigators of the Juno-UVS and JIRAM instruments and participate to the Juno Science Team.

LPAP Juno Scientific Objectives

One of our main research projects focuses on the investigation of plasma sources, acceleration and transport in giant planets’ magnetospheric systems and is articulated around observations obtained with Juno and with the Hubble Space Telescope. We are particularly interested in the analysis and interpretation of the intense, permanent, ultraviolet auroral emissions of Jupiter, which cannot be observed from ground based telescopes. Auroral emissions are one of the key tools that allow us to remotely explore planetary magnetospheres. LPAP was awarded one of the largest HST observing programs ever selected for the solar system (GO-14634). It consists of 151 HST orbits meant to build an “HST-Juno synergistic approach of Jupiter's magnetosphere and ultraviolet auroras” meant to significantly increase the scientific return of the Juno mission. The scientific description of this HST campaign may be found in this white paper.

HST campaign supporting Juno observations

These researches may be organized in eight intermixed work packages:

  • Trans-hemispheric observations: the role of Jupiter’s magnetic field
  • Observations in the same hemisphere: the origin of the short-term auroral variations
  • Apojove: the origin of the long-term auroral variations
  • Current sheet crossings: the precise nature of the main and outer auroral emissions
  • Around the UVS perijove segment: the role of magnetospheric plasma production and transport in the auroral output
  • Galilean moons auroras: the link between the moons auroras and their footprints on Jupiter
  • Ultraviolet - infrared comparison
  • Concurrent HST observations with Earth-orbit (Chandra, XMM, Hisaki) and ground based observatories (Keck, Subaru, IRTF and VLT telescopes)

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