Authors:
Reglero V., Giménez A., Estela A., Fabregat J.
Journal:
Astrophysics and Space Science
Abstract:
If we follow recent work and in order to extend the uvby photometric calibrations to spectral types later than G0, we present an attempt to use the combined uvby and β systems for stars in the range G5-K7 and luminosity classes V to III. The behaviour in the MK-β, (b-y)-β and cl-β diagrams of the 200 stars, only good spectroscopic data being considered, suggests the usefulness of the β index as an independent parameter for late-type Main-Sequence stars, following in a natural way the general trend defined by Crawford for F- and G-type stars. © 1990 Kluwer Academic Publishers.
URL:
https://ui.adsabs.harvard.edu/#abs/1990Ap&SS.169..263R/abstract