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New Colour Transformations for the Sloan Photometry, and Revised Metallicity Calibration and Equations for Photometric Parallax Estimation

Published online by Cambridge University Press:  05 March 2013

S. Karaali ,
S. Bilir  and
S. Tunçel
S. Karaali*
Affiliation:
Istanbul University, Department of Astronomy and Space Sciences, 34119 University-Istanbul, Turkey
S. Bilir
Affiliation:
Istanbul University, Department of Astronomy and Space Sciences, 34119 University-Istanbul, Turkey
S. Tunçel
Affiliation:
Istanbul University, Department of Astronomy and Space Sciences, 34119 University-Istanbul, Turkey
*
BCorresponding author. Email: karsa@istanbul.edu.tr
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Abstract

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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 Mg′H ≥ 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.

Keywords

techniques: Sloan photometrygalaxy: abundancesstars: distances
Type
Research Article
Information
Publications of the Astronomical Society of Australia , Volume 22 , Issue 1 , 2005 , pp. 24 - 28
Copyright
Copyright © Astronomical Society of Australia 2005

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