The main sequence from F to K stars of the solar neighbourhood in SDSS colours

Abstract

For an understanding of Galactic stellar populations in the SDSS filter system well defined stellar samples are needed. The nearby stars provide a complete stellar sample representative for the thin disc population. We compare the filter transformations of different authors applied to the main sequence stars from F to K dwarfs to SDSS filter system and discuss the properties of the main sequence. The location of the mean main sequence in colour-magnitude diagrams is very sensitive to systematic differences in the filter transformation. A comparison with fiducial sequences of star clusters observed in g',r',i' show good agreement. Theoretical isochrones from Padua and from Dartmouth have still some problems especially in (r-i)-colour.

11 pages, 15 figures, 1 online table available at ftp://ftp.ari.uni-heidelberg.de/staff/just/stars.tab, accepted by AN

References in corpus (4)

• Empirical Color Transformations Between SDSS Photometry and Other Photometric Systems
• Setting UBVRI Photometric Zero-Points Using Sloan Digital Sky Survey ugriz Magnitudes
• Fiducial Stellar Population Sequences for the u'g'r'i'z' System
• Improved $u^{\prime }{g}^{\prime }{r}^{\prime }{i}^{\prime }{z}^{\prime }$ to $UBV{R}_C{I}_C$ Transformation Equations for Main Sequence Stars

Cited by in corpus (1)

• Multi-wavelength, spatially resolved modelling of HD 48682's debris disc