Comparison of Metallicities Adopted for the Synthetic UBV Photometry with Those Evaluated by Means of RGU Photometry

Details Comparison of Metallicities Adopted for the Synthetic UBV Photometry with Those Evaluated by Means of RGU Photometry Comparison of Metallicities Adopted for the Synthetic UBV Photometry with Those Evaluated by Means of RGU Photometry

Apr 1998

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1998tjph...22..273k&link_type=abstract

Turkish Journal of Physics, vol. 22, p. 273-292 (1998)

Physics

Photometry: Stars: Abundances: Metal-Poor

Scientific paper

Comparison of metallicities adopted for the synthetic UBV photometry with those evaluated by means of RGU photometry for 92 stars is presented. The agreement only for zero metallicity. The discrepancy increases to low metallicities which cover Intermediate population and Population II main-sequence star. U-G and G-R colour indices are transformed from UBV synthetic data and do not include any observational error. Therefore, the disagreement may orginate from a systematic error in the metallicity calibration of relatively metal-poor stars in RGU photometry.

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