4800 Oak Grove Drive
M/S 183-301
Pasadena, CA 91109Apurva Oza is an [exo]planetary astrophysicist working in the Small Bodies group at JPL/Caltech to better understand the physical properties of Jupiter’s volcanic satellite Io while also leading an international quest to search for small bodies orbiting nearby planetary systems (e.g. exo-Ios). Inspired by the gravitational tides and electromagnetic ions that are actively melting and evaporating the Laplacian satellite surfaces (Io, Europa, and Ganymede), Oza and his then undergraduate student (A. Gebek; U Ghent) developed a unique technique ‘evaporative transmission spectroscopy’ to illuminate powerful volcanic and plasma signatures venting from otherwise hidden exomoons & exorings. Hence, Desorbing Interiors via Satellite Heating to Observe Outgassing Model (DISHOOM) has now been developed to continue Oza’s all sky exoplanet survey (embarked at the University of Virginia) using ground and space based spectrographs, altogether benchmarked to in-situ infrared spectrograph data from JPL’s JUNO/JIRAM camera currently at Jupiter.
Oza’s PhD thesis entitled ‘Detection and Dynamics of Satellite Exospheres’ at the Sorbonne Université in Paris, France described the first evidence of diurnal atmospheric evolution on Europa and Ganymede via a dusk-over-dawn O2 asymmetry identified by HST.
At the University of Bern, Switzerland, Oza developed a new curriculum for the graduate course ‘Planet Formation and Evolution’ where he was part of the ‘Planets in Time’ group studying sub-Neptune to super-Earth evolution. Full circle, Oza’s 1st planet project was also on small bodies where he studied the volatile loss and evolution of the distant and mysterious Kuiper Belt Objects.
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