Date: Monday 21-Oct-2024
Time: 11:15 am - 12:15 pm
Location: ATL 1250 and Zoom (contact host Matt Nixon for link)
Speaker: Marshall Johnson (Ohio State University)
Title: Reaching for Distant Worlds: Exoplanet Atmospheres at High Spectral Resolution
Abstract: The study of exoplanets has rapidly advanced over the last three decades, with thousands of planets now known. With newly-developed techniques and instrumentation, we can now perform more detailed characterization of a select few planets. The best cases are the ultra hot Jupiters (UHJs), short-period, massive planets which host the most extreme planetary environments, with atmospheric temperatures in excess of 2200 K. I will present PIRANGA, a survey of the population of UHJ atmospheres using the PEPSI spectrograph on the Large Binocular Telescope. With the high spectral resolution, high signal-to-noise ratio spectra produced by this facility, we can detect individual atomic and molecular species in the planetary atmospheres. Furthermore, we can use these detections to constrain the structure, dynamics, and time variability of the atmospheres, providing an unprecedented view of these distant worlds.
If you have any questions, contact the PALS hosts: Benjamin Sharkey (small bodies) and Matt Nixon (exoplanets).
SPECIAL ACCOMMODATIONS:Special accommodations for individuals with disabilities can be made by calling (301) 405-3001. It would be appreciated if we are notified at least one week in advance.
ATL 1250 is a flat, carpeted conference room that can accommodate approximately 20-30 people at large tables. The closest wheelchair accessible entry to this room in the Atlantic building is the white stone entrance at 224 Stadium Drive.
