Barnes-evans relations for late-type giants and dwarfs

Jun, 1999
10 pages
Published in:
  • Astron.Astrophys. 348 (1999) 524-532
e-Print:

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199920042009201420171032
Abstract: (arXiv)
The visual surface brightness of K/M giants and dwarfs with near-solar metallicity differ slightly in agreement with the gravity effects predicted by recent theoretical models. We show that M-dwarfs display also a metallicity dependence of the surface brightness in the infrared KK-band in agreement with theory. Based on these results, we present improved Barnes-Evans type relations and estimate the radii of 60 single or presumed M and K-dwarfs