Thermal and Near-Infrared Structural Evolution of the 2009 Wesley Jupiter Impact from 1.5-24.5 Micron Imaging

Details Thermal and Near-Infrared Structural Evolution of the 2009 Wesley Jupiter Impact from 1.5-24.5 Micron Imaging Thermal and Near-Infrared Structural Evolution of the 2009 Wesley Jupiter Impact from 1.5-24.5 Micron Imaging

Dec 2009

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2009agufm.p33b1282g&link_type=abstract

American Geophysical Union, Fall Meeting 2009, abstract #P33B-1282

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[6220] Planetary Sciences: Solar System Objects / Jupiter

Scientific paper

We show the morphological evolution of the remnant scar from the Jupiter impact (July 19, 2009) at mid- and near-infrared wavelengths. Data taken less than 24 hours after the impact using NASA’s IRTF capture the initial structure at a wide range of wavelengths from 1.5-24.5 microns. Furthermore, images obtained from NASA’s Infrared Telescope Facility, Gemini North and South, and the Very Large Telescope in the subsequent weeks allow us to monitor the evolving morphology of the feature as zonal and meridional winds redistributed the impact debris through Jupiter’s atmosphere. Our observations indicate that the feature expanded primarily in the longitudinal direction in both the mid- and near-infrared, but underwent separation in the latitudinal direction much earlier in the thermal. The impact feature also became indistinguishable from its Jovian background in the thermal as of mid-August, whereas the scar remains distinct in the near-infrared. Timelines and images at various thermal and near-infrared wavelengths will be used to show the rapid evolution of the debris from July 20 to late August. *This work was performed at the Jet Propulsion Laboratory, California Institute of Technology, sponsored by the Summer Undergraduate Research Fellowship (SURF) program.

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