10:45 AM - 11:00 AM
[PCG21-07] Peering Down Exoplanetary Cloud and Haze Formation with JWST
★Invited Papers
Keywords:Exoplanets, Atmosphere, Cloud, JWST
Planets such as hot Jupiters and sub-Neptunes, which do not exist in the solar system, are ubiquitously present in extrasolar systems. Exoplanets typically orbit close to their host stars. Owing to its hot environments, it has been believed that minerals, such as silicates and salts, exist as condensation clouds in their atmospheres. Furthermore, intense ultraviolet irradiation from the host star is thought to produce photochemical hazes. Since these clouds and hazes greatly affect planetary energy budgets and atmospheric observability, it is crucial to understand their formation processes.
In recent years, infrared spectroscopic observations by JWST have revolutionalized our understanding of the properties of exoplanetary atmospheres. JWST is gradually shedding light on the nature of exoplanetary clouds and hazes through remarkable observational results, such as through the detection of silicate feature in hot Jupiter and the observational signature of highly reflective aerosols. In this talk, I will provide an overview of recent atmospheric observations by JWST and review the current observational understanding of clouds and hazes in exoplanetary atmospheres, along with relevant theoretical and experimental studies.
In recent years, infrared spectroscopic observations by JWST have revolutionalized our understanding of the properties of exoplanetary atmospheres. JWST is gradually shedding light on the nature of exoplanetary clouds and hazes through remarkable observational results, such as through the detection of silicate feature in hot Jupiter and the observational signature of highly reflective aerosols. In this talk, I will provide an overview of recent atmospheric observations by JWST and review the current observational understanding of clouds and hazes in exoplanetary atmospheres, along with relevant theoretical and experimental studies.