The luminosity function of nearby thick-disk sub-dwarfs

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 lum...

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Bibliographic Details
Published in:Proceedings of the International Astronomical Union 2007-10, Vol.3 (S248), p.484-485
Main Author: Arifyanto, M. I.
Format: Article
Language:English
Subjects:
Contributed Papers
Dwarf stars
Simulation
Stars & galaxies
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Summary: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).
ISSN:1743-9213
1743-9221
DOI:10.1017/S1743921308019868