Statistics
Scientific paper
Feb 1999
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1999apj...512..864h&link_type=abstract
The Astrophysical Journal, Volume 512, Issue 2, pp. 864-873.
Statistics
109
Astrometry, Stars: Binaries: Close, Stars: Low-Mass, Brown Dwarfs, Stars: Luminosity Function, Mass Function, Stars: Statistics, Techniques: Interferometric
Scientific paper
The empirical mass-luminosity relation at M_V is presented for stars with masses 0.08-0.20 M_solar based upon new observations made with Fine Guidance Sensor 3 on the Hubble Space Telescope. The targets are nearby, red dwarf multiple systems in which the magnitude differences are typically measured to +/-0.1 mag or better. The M_V values are generated using the best available parallaxes and are also accurate to +/-0.1 mag, because the errors in the magnitude differences are the dominant error source. In several cases this is the first time the observed sub-arcsecond multiples have been resolved at optical wavelengths. The mass-luminosity relation defined by these data reaches to M_V=18.5 and provides a powerful empirical test for discriminating the lowest mass stars from high-mass brown dwarfs at wavelengths shorter than 1 mum.
Benedict George F.
Franz Otto G.
Henry Todd J.
Ianna Philip A.
Kirkpatrick Joseph D.
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