The main sequence from F to K stars of the solar neighbourhood in SDSS colours - AstrophysicsReport as inadecuate




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Abstract: For an understanding of Galactic stellar populations in the SDSS filtersystem well defined stellar samples are needed. The nearby stars provide acomplete stellar sample representative for the thin disc population. We comparethe filter transformations of different authors applied to the main sequencestars from F to K dwarfs to SDSS filter system and discuss the properties ofthe main sequence. The location of the mean main sequence in colour-magnitudediagrams is very sensitive to systematic differences in the filtertransformation. A comparison with fiducial sequences of star clusters observedin g-,r-,i- show good agreement. Theoretical isochrones from Padua and fromDartmouth have still some problems especially in r-i-colour.



Author: A. Just, H. Jahreiss

Source: https://arxiv.org/







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