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astro-ph1997
Lithium and binarity in M67
D. Barrado y Navascues, J. R. Stauffer, S. Balachandran
A study of the lithium abundances in binaries of the old open cluster M67 is presented. Abundances were estimated using curves of growth and equivalent widths of the LiI6707.8 Å do…
astro-ph1997
Why is the X-ray luminosity function different for the Hyades and Praesepe?
D. Barrado y Navascues, J. R. Stauffer, S. Randich
We have studied dF-dK and dM stars belonging to Praesepe in order to determine membership via radial velocities and to compare several stellar properties, such as X-ray luminositie…
astro-ph1997
Lithium Abundance in Binaries of the Hyades Open Cluster
D. Barrado y Navascues, J. R. Stauffer
We have derived accurate and homogeneous Lithium abundances in 49 main sequence binary systems belonging to the Hyades Open Cluster by using a deconvolution method to determine ind…