Barnes-Evans relations for late-type giants and dwarfs

Authors
Beuermann, K Baraffe, I Hauschildt, P
Citation
K. Beuermann et al., Barnes-Evans relations for late-type giants and dwarfs, ASTRON ASTR, 348(2), 1999, pp. 524-532
Citations number
23
Categorie Soggetti
Space Sciences
Journal title
ASTRONOMY AND ASTROPHYSICS
ISSN journal
00046361 → ACNP
Volume
348
Issue
2
Year of publication
1999
Pages
524 - 532
Database
ISI
SICI code
0004-6361(199908)348:2<524:BRFLGA>2.0.ZU;2-N
Abstract
The visual surface brightness of K/M giants and dwarfs with near-solar meta llicity 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 ii-band in agree ment 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.