Unlike the giant planets in the solar system, "hot Jupiter" giant exoplanets are subject to intense stellar irradiation, which drives their atmospheres from ~100 K (in the solar system) to ~1000 to 3000 K.  In this talk I will review several aspects of their atmospheric physics and chemistry, with a particular emphasis on the cooler "warm Jupiters" below 1000 K where we expect to see some interesting transitions in atmospheric chemistry and clouds with JWST.  I will discuss new JWST spectra and modeling work on 1100 K exoplanet WASP-39b, which will be published in Nature in a few days time, as part of the JWST Early Release Science (ERS) program.  The spectra show some expected things but also some very interesting surprises!

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Zoom: https://rediris.zoom.us/j/82072236238?pwd=MWFRSXFnQ0lUN3ZMTzgzTGQxS0ZGUT09

Passcode: 648570

YouTube: https://youtu.be/jbFP6L-7mxo