4 papers
HE1327-2326, an unevolved star with [Fe/H]<-5.0. I. A Comprehensive Abundance Analysis
W. Aoki, A. Frebel, N. Christlieb +17
We present the elemental abundances of HE1327-2326, the most iron-deficient star known, determined from a comprehensive analysis of spectra obtained with the Subaru Telescope High…
Beryllium Enhancement as Evidence for Accretion in a Lithium-Rich F Dwarf
J. F. Ashwell, R. D. Jeffries, B. Smalley +3
The early F dwarf star ``J37'' in the open cluster NGC6633 shows an unusual pattern of photospheric abundances, including an order of magnitude enhancement of lithium and iron-peak…
Boron Depletion in F and G Dwarf Stars and the Beryllium-Boron Correlation
Ann Merchant Boesgaard, Constantine P. Deliyannis, Aaron Steinhauer
Boron provides a special probe below the stellar surface as it survives to greater depths than do Li and Be. To search for B depletions we have observed B in 13 F and G dwarfs with…
WIYN/Hydra Detection of Lithium Depletion in F Stars of the Young Open Cluster M35 and Implications for the Development of the Lithium Gap
Aaron Steinhauer, Constantine P. Deliyannis
We report discovery of significant depletion of Li on the surfaces of F dwarf stars in the 150-Myr-old open cluster M35, analagous to a feature in the 700-Myr-old Hyades cluster th…