SIMBAD references

1999BaltA...8..465B - Baltic Astronomy, 8, 465-482 (1999/December-0)

Photoelectric Vilnius photometry of Hipparcos turn-off region stars.

BARTASIUTE S., EZHKOVA O.V. and LAZAUSKAITE R.

Abstract (from CDS):

Seven-color photometry in the Vilnius system and photometric classification in terms of spectral type, absolute magnitude and metallicity are presented for 145 Hipparcos stars of the turn-off region, most of which have parallaxes determined to an accuracy of at least 15%. The stars selected for the observing program included those identified kinematically as intermediate between the thin disk and halo, plus a number of weak-lined stars discovered previously from objective prism surveys. The metallicity distribution we find for a kinematically defined sample of possible members of the thick disk has a mean abundance [Fe/H]= -0.3 dex and a dispersion of 0.3 dex. Our data seem to suggest a large age for this intermediate population.

Abstract Copyright:

Journal keyword(s): stars: fundamental parameters, intermediate Population II - techniques: photometric, Vilnius photometric system

Simbad objects: 151

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2019.09.16-23:25:46

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