The luminosity function of nearby thick-disk sub-dwarfs

Details The luminosity function of nearby thick-disk sub-dwarfs The luminosity function of nearby thick-disk sub-dwarfs

Jul 2008

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2008iaus..248..484a&link_type=abstract

A Giant Step: from Milli- to Micro-arcsecond Astrometry, Proceedings of the International Astronomical Union, IAU Symposium, Vol

Astronomy and Astrophysics

Astronomy

Galaxy: General, Galaxy: Disk, Stars: Fundamental Parameters (Luminosities, Masses), Subdwarfs

Scientific paper

We derived the luminosity function of thick disk using V/Vmax method for nearby sub-dwarf stars based on the sample stars of Carney et al. (1994). Hipparcos parallaxes and proper motions and Tycho2 proper motions were combined with radial velocities and metallicities from CLLA. We found that the luminosity function in the absolute magnitude range MV = 4 6 mag agree well with the luminosity function derived from the initial mass function (Reyle & Robin 2001).

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