Discovery of a Hypervelocity L Subdwarf at the Star/Brown Dwarf Mass Limit

Adam J. Burgasser, Roman Gerasimov, Kyle Kremer +18

We report the discovery of a high velocity, very low-mass star or brown dwarf whose kinematics suggest it is unbound to the Milky Way. CWISE J124909.08+362116.0 was identified by c…