The luminosity function of ultracool dwarfs
Kelle Cruz (University of Pennsylvania and American Museum of Natural History)
We have created a statistically complete sample of M7--L8 dwarfs within 20 pc
using the 2MASS Second Data Release. With this dataset, we present the first
robust measurement of the luminosity function of objects that span the
stellar/brown dwarf boundary. In addition, we have doubled the number of
ultracool dwarfs known within 20 pc. I will describe these results, summarize
its implications on the mass function, and discuss the prospects for the future.