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UBVRI distances and metallicities for a sample of late-type Hipparcos stars
Published online by Cambridge University Press: 07 August 2017
Abstract
Using UBVRI photometry and proper motions we have developed a procedure to separate dwarfs and subdwarfs from stars of other luminosity classes. Three independent methods to take into account the effect of metallicity in photometric distance determinations have been applied, giving special attention to the use of infrared colours for stars with (B – V) > 0.8m.
The application of these methods to a sample of 426 stars included in the HIPPARCOS Input Catalogue –for which we have obtained photometric data– allow us to analyze systematic differences.
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