42 citations · 70 across the 2 of their papers we have counts for
5 papers
Identification of the Lithium Depletion Boundary and Age of the Southern Open Cluster Blanco 1
P. A. Cargile, D. J. James, R. D. Jeffries
We present results from a spectroscopic study of the very low mass members of the Southern open cluster Blanco 1 using the Gemini-N telescope. We obtained intermediate resolution (…
Employing a New BVIc Photometric Survey of IC 4665 to Investigate the Age of this Young Open Cluster
Phillip A. Cargile, David J. James
We present a new, BVIc photometric survey of the young open cluster IC4665, which improves on previous studies of this young cluster by incorporating a rigorous standardization pro…
Lithium 6104A in Population II stars
A. Ford, R. D. Jeffries, B. Smalley +5
We have obtained echelle spectroscopy of 14 Population II objects selected from those previously observed by Bonifacio & Molaro (1997). For one object, HD 140283, we obtained exqui…
Lithium in the Coma Berenices open cluster
A. Ford, R. D. Jeffries, D. J. James +1
Lithium abundances, radial velocities and rotational velocities are reported for 20 candidate F, G and K stars of the sparse Coma Berenices open cluster. All the stars are proper-m…
Rotation and activity in the solar-type stars of NGC 2547
R. D. Jeffries, E. J. Totten, D. J. James
We present high resolution spectroscopy of a sample of 24 solar-type stars in the young (15-40 Myr), open cluster, NGC 2547. We use our spectra to confirm cluster membership in 23…