Title

Our Nearest 15 Million Neighbors: The Field Low-Mass Stellar Luminosity and Mass Functions

Document Type

Conference Proceeding

Role

Contributor

Publication

Proceedings of the 15th Cambridge Workshop on Cool Stars, Stellar Systems and the Sun

Publisher

AIP Publishing

Standard Number

978-0-7354-0627-8

First Page

977

Last Page

981

Publication Date

2009

Abstract

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⊙.

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