In the brown dwarf and exoplanet regime, magnetically sensitive lines disappear, rendering the Zeeman effect useless. As a result, we have little-to-no knowledge of if and how magnetic fields manifest and evolve over time in sub-stellar objects, nor how they are impacted by the outflows of material from their host stars. However, another signpost of magnetism in sub-stellar objects is their auroral emission. This is thought to be driven by the acceleration of electrons in their magnetospheres, akin to what is seen on Jupiter.
The goal of this splinter is to highlight the current methods available for inferring magnetic fields on stars, brown dwarfs, and exoplanets. Leading up to Cool Stars, we will solicit challenges hindering the inference of magnetic fields on these objects from the participants. The splinter will feature an interactive session in which the participants will form groups that will discuss how to address to these issues. Topics for this section can be suggested by either filling out the Google form here or emailing cs22substellar@gmail.com.
The schedule for the splinter session can be found by clicking the button in the top right corner.
Splinter organizers
Dr Robert Kavanagh (ASTRON/University of Amsterdam, the Netherlands)
Dr John Sebastian Pineda (University of Colorado Boulder, USA)
Dr Mary Knapp (MIT Haystack Observatory, USA)
Background image credit: Allison Li