Fundamental Parameters of M Dwarfs and their Companions
M dwarfs make up 70% of the stars in the solar neighborhood. Because of their proximity, diminutive size and cool temperatures, these stars provide fertile ground in the hunt for planetary companions. However, while small planets around M dwarfs are extremely common, there are many other companions that have been found in the past few years. In many cases, these companions can serve as benchmark objects, providing tests of stellar and planetary astrophysics and tying stellar models to data. Here, I will discuss the occurrence rate of giant planets around M dwarfs as measured by the TRENDS survey, a transiting brown dwarf discovered by Kepler which will provide key tests of brown dwarf evolutionary models, and an astrometric monitoring campaign to measure dynamical masses of young M dwarfs in binary systems.