PI: Katherine de Kleer, UC Berkeley, firstname.lastname@example.org
Address: Department of Astronomy, 601 Campbell Hall #3411, Berkeley, CA, 94720-3411 USA
CoI: Imke de Pater, UC Berkeley
Title: Linking Io's Volcanic Activity to Plasma Torus Variability
Abstract: Jupiter's dynamic and volcanically-active moon Io resides in a complex and time-variable system of neutral and ionized particles, which are sourced by volcanic by-products from Io. This spring, the ISAS/JAXA SPRINT-A/EXCEED mission will observe EUV emission from ionized S and O in the Jovian system in preparation for the arrival of Juno, providing a truly unique opportunity to study the connection between volcanic activity on Io and variability in the Jupiter plasma torus. Determining the mechanisms and timescales involved in transporting material from Io to the neutral cloud and then plasma torus is the first step to understanding the planetary "tails" recently discovered trailing exoplanets in the Kepler dataset. We propose to observe Io with ALTAIR/NIRI at 2.3 and 3.8 microns for 25 minutes, on as many nights as possible during the semester. We will analyze our results in conjunction with the results from the EXCEED mission, in order to assess correlations between the temporal variability of Io's volcanic activity and the plasma torus. These observations will also give us the spatial distribution of volcanic eruptions on Io during the semester, which can be compared with previous years and provides an important constraint on tidal heat dissipation models.
Program Type: Standard/Solar System
Run 1 (2016A): GEM-NQ/NIRI -- 20hrs band 1 (GN-2016A-Q-34)
National Optical Astronomy Observatory, 950 North Cherry Avenue, P.O. Box 26732, Tucson, Arizona 85726, Phone: (520) 318-8000, Fax: (520) 318-8360