479 research outputs found
New colour-transformations for the Sloan photometry and revised metallicity calibration and equations for photometric parallax estimation
We evaluated new colour-transformations for the Sloan photometry by 224
standards and used them to revise both the equations for photometric parallax
estimation and metallicity calibration cited by Karaali et al. (2003). This
process improves the metallicity and absolute magnitude estimations by
[Fe/H]<=0.3 dex and M^{H}_{g} <= 0.1 mag respectively. There is a high
correlation for metallicities and absolute magnitudes derived for two systems,
UBV and Sloan, by means of the revised calibrations.Comment: 11 pages, including 7 figures and 2 tables, accepted for publication
in PAS
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