A Tale of Planetary Adolescence and Evolution

Speaker Name/Affiliation
Adina Feinstein / LASP
Location Other (Room)
LASP – Space Science Building, SPSC-W120 A&B and Zoom
Event Details & Abstracts
Within the past decade, we have discovered only a dozen young (< 300 Myr) short-period exoplanets, compared to ~5,600 mature exoplanets. The radii of these young planets are larger than older planets on similar orbital periods. The leading hypothesis is that these young planets have inflated atmospheres because they are still contracting. Inflated atmospheres are more susceptible to photoevaporation — atmospheric removal driven by high energy stellar irradiation. These effects are intensified in the earliest stages of planetary evolution, when young stars are more active and produce extreme levels of X-ray and Ultraviolet (UV) radiation on a variety of timescales. Even though it is challenging to study exoplanets around active stars, observational constraints of these targets provide crucial insights into our understanding of exoplanet formation and evolution. In this talk, I will present several benchmark studies of young stars and their planets spanning from the UV to the infrared (IR), using observations of NASA's Hubble Space Telescope, Transiting Exoplanet Survey Satellite, and JWST.  Finally, I will highlight near-future observations and steps towards understanding these challenging, yet crucial, young systems.

Zoom Information

The zoom link for each seminar will be provided in LASP Seminar emails. Please contact scienceseminars@lasp.colorado.edu to be added to the mailing list.

Visitor Information

Please be aware that the exterior SPSC building doors are generally kept locked. Any non-LASP seminar attendees should email Jem Averyt (jem.averyt@lasp.colorado.edu) in advance to make any necessary arrangements for building access.


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Address Info:

LASP – Space Science Building


3665 Discovery Drive, Boulder, CO 80303

Map: https://lasp.colorado.edu/home/maps/spsc-w120/