Our Nearest 15 Million Neighbors: The Field Low-Mass Stellar Luminosity and Mass Functions
Proceedings of the 15th Cambridge Workshop on Cool Stars, Stellar Systems and the Sun
We report on a new measurement of the luminosity function (LF) and mass function (MF) of field low—mass dwarfs using Sloan Digital Sky Survey (SDSS) photometry. The final catalog is composed of ∼15 million low—mass stars (0.1 M⊙ugriz photometry of nearby low—mass stars with trigonometric parallaxes. The LF is measured with a novel technique, which simultaneously measures Galactic structure and the stellar LF. The resulting LF is compared to previous studies and converted to a MF. The MF is well—described by a log—normal distribution, with M° = 0.27 M⊙.
John J. Bochanski, Suzanne L. Hawley, I. Neill Reid, Kevin R. Covey, Andrew A. West, David A. Golimowski, and Zeljko Ivezic. "Our Nearest 15 Million Neighbors: The Field Low-Mass Stellar Luminosity and Mass Functions" in Proceedings of the 15th Cambridge Workshop on Cool Stars, Stellar Systems and the Sun. Eric Stempels, Ed. St. Andrews: AIP Publishing. 2009.