Examining the Age/Activity Relationship of Ultracool Dwarfs with GAIA

Understand

The relationship between age, rotation, and magnetic activity can be used to roughly estimate the ages of solar-type stars.

• At lower stellar masses, the relationship between activity and age changes due to the less efficient angular momentum loss, and may disappear entirely for ultracool (late-M and L) dwarfs.
• The detection of flares (as a tracer of magnetic activity) can be combined with kinematic tracers of age to explore the relationship between age and activity for ultracool dwarfs.
• The final data release of GAIA will provide time-resolved photometry of GAIA targets in the $G$ filter, but the effect of flares in the $G$-band is not well understood.