Science Seminars

Cool Dwarf Magnetism at the Intersection of Coronal and Auroral Activity

Speaker: J. Sebastian Pineda (CU/LASP)
Date: Wednesday, Dec 04, 2019
Time: 4:00 PM
Location: SPSC W120

Seminar Abstract:

The continued search for habitable worlds beyond the solar system has generated great interest in the study of low-mass red dwarfs, which will host many of the best planetary targets for atmospheric characterization with the James Webb Space Telescope. The discovery of the TRAPPIST-1 seven terrestrial planet system, has further focused attention on the lowest-mass stars and even substellar brown dwarfs as interesting satellite hosts. This is both a consequence of the likely abundance of rocky exoplanets favorable for detection and characterization, and new possibilities regarding the magnetic interactions between the hosts and the satellites. I will discuss the changes in stellar magnetism for the lowest-mass stars that make their magnetospheric environments distinct places for investigations of exoplanetary habitability, our ongoing efforts to characterize the magnetic emissions of this host population including aurorae, and the prospects for detecting radio emission induced by the magnetic interaction of satellites orbiting hosts at the end of the stellar main sequence.