Informazioni sull’evento

02/09/2018

Attenzione: a seguito delle disposizioni per il contenimento della diffusione del coronavirus, i seminari potranno essere in modalità online e/o in presenza, si prega di consultare i singoli avvisi. In caso di modalità online il link per il collegamento verrà reso disponibile nei giorni precedenti la data del seminario. Qui, invece, la playlist dei remote talks già messi in rete »

Joint Astrophysical Colloquium

Early Release Science investigation of a giant exoplanet with the JWST instruments

Luigi Mancini (Dipartimento di Fisica - Università di Roma)

Thursday 26/01/2023 @ 11:30, Sala IV piano Battiferro

The successful launch of JWST opens a new era of astronomy by bringing forth the ability to measure the compositions of planet atmospheres beyond our own Solar System with exquisite precision. In this seminar I will briefly discuss the main techniques for detecting exoplanets, especially the transit method. I will then describe the two usual observational techniques for probing the atmospheres of transiting planets, namely transmission and emission spectroscopy, underlining the limits of ground-based and space observations in the pre-JWST era. I will then show the first recent results obtained by the JWST which investigated a giant planet, WASP-39b, at wavelengths that were previously inaccessible, highlighting the presence of carbon dioxide and sulfur dioxide. Finally, I will show the prospects for studying the atmospheres of small and rocky planets.