Events

Events at Physics

<< Summer 2024 Fall 2024 Spring 2025 >>
Subscribe your calendar or receive email announcements of events
Astronomy Colloquium
High Fidelity Spectroscopy of Exoplanet and Protoplanetary Disk Atmospheres
Date: Thursday, October 17th
Time: 2:30 pm - 3:30 pm
Place: 4421 Sterling Hall
Speaker: Geoffrey A. Blake, California Institute of Technology
Abstract: The extraordinary range of conditions in protoplanetary disks drives complex patterns of atomic, molecular, and dust abundances - especially for abundant 'volatile' species such as water, carbon monoxide, and small organics that condense at different spatial locations, or 'snowlines' in the disk. The bulk composition of planets can thus vary, compared to that of their host star, depending on their origin and migration history. The latest generation of Adaptive Optics (AO)-fed infrared spectrographs now provide sufficiently high dynamic range capabilities to robustly characterize exoplanetary and protoplanetary disk atmospheres. This talk will present an overview of recent results from Keck Planet Imager and Characterizer (KPIC)-NIRSPEC studies of exoplanet/brown dwarf atmospheres and those from the JWST Infrared Spectroscopic Chemistry Survey (JDISCS) conducted with Mid-InfraRed Instrument (MIRI) IFU.
Host: Melinda Soares-Furtado
Add this event to your calendar