Metallicity calibration and photometric parallax estimation: I. UBV photometry

Güçtekin S. T., Bilir S., Karaali S., Ak S., Ak T., Bostanci Z. F.

ASTROPHYSICS AND SPACE SCIENCE, vol.361, no.6, 2016 (SCI-Expanded) identifier identifier

  • Publication Type: Article / Article
  • Volume: 361 Issue: 6
  • Publication Date: 2016
  • Doi Number: 10.1007/s10509-016-2776-2
  • Journal Name: ASTROPHYSICS AND SPACE SCIENCE
  • Journal Indexes: Science Citation Index Expanded (SCI-EXPANDED), Scopus
  • Keywords: Stars: abundances, Stars: metallicity calibration, Stars: distance, DIGITAL SKY SURVEY, ELEMENTAL ABUNDANCE, STAR COUNTS, DISTANCES, POPULATION, SUBDWARFS, GALAXY, DISK, HALO
  • Istanbul University Affiliated: Yes

Abstract

We present metallicity and photometric parallax calibrations for the F and G type dwarfs with photometric, astrometric and spectroscopic data. The sample consists of 168 dwarf stars covering the colour, iron abundance and absolute magnitude intervals 0.30 < (B -V)(0) < 0.68 mag, -2.0 < [Fe/H] < 0.4 dex and 3.4 < M-V < 6.0 mag, respectively. The means and standard deviations of the metallicity and absolute magnitude residuals are small, i.e. = 0 and sigma = 0.134 dex, and = 0 and sigma = 0.174 mag, respectively, which indicate accurate metallicity and photometric parallax estimations.