Newly Formed Planets within the Debris Disk of a Nearby Pre-main-sequence Star

Event

When:
Fri, 22 Nov 2019, 03:00 pm - 04:00 pm
Where:
Natural Science Bldg. 112 - Louisville, KY
Category:
Current Colloquia
Who:
Dr. Peter Plavchan
Affiliation:
George Mason University

Description

We will present the discovery of a two-planet system orbiting a nearby young star with a debris disk. One inner planet is discovered using data from NASA’s TESS mission and a second planet with multi-wavelength radial velocities. The two newly identified planets in this system can be used to investigate disk-planet interactions and inform the planet formation and migration process. We will present how this planetary system was found, primarily utilizing the near-infrared radial velocity technique we have developed using the iSHELL spectrometer on the NASA Infrared Telescope Facility. We will also discuss the effects of stellar activity and how multi-wavelength Doppler velocities may allow us to mitigate its effects in our search for planets with the Doppler technique.


Venue

Location:
Natural Science Bldg. 112