46 citations
- Center for Astrophysics Harvard & SmithsonianUS6 papers
- Smithsonian Astrophysical ObservatoryUS6 papers
- Arcetri Astrophysical ObservatoryIT2 papers
- Universidad Complutense de MadridES2 papers
- University of Maryland, College ParkUS2 papers
- Association of Universities for Research in AstronomyUS1 paper
- Cerro Tololo Inter-American ObservatoryCL1 paper
- Instituto de Astrofísica de CanariasES1 paper
8 papers
Stellar Activity in Coeval Open Clusters: Praesepe and The Hyades
D. Barrado y Navascues, J. R. Stauffer, S. Randich
Randich and Schmitt [1995, A&A 298, 115] found that the coronal activity of solar-type and low mass stars in Praesepe is significantly lower than that of stars in the Hyades cluste…
Chromospheric Emission from Red Giants in the Open Cluster NGC 6940
D. Barrado y Navascues, A. K. Dupree
The observation of the Ca II H and K lines in red giants in NGC 6940 allows the strength of chromospheres and their behavior to be evaluated in a population whose evolution is well…
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…
Lithium and binarity
David Barrado y Navascues
We present an analysis of the lithium abundances in late spectral type binaries of different ages. They belong to several open clusters (Pleiades, Hyades and M67), as well as to Ch…
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…
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…