3 papers
astro-ph2005
New Keck Observations of Lithium in Very Metal-poor Stars
Ann Merchant Boesgaard, Megan C. Novicki, Alex Stephens
Lithium abundances have been determined in more than 100 metal-poor halo stars both in the field and in clusters. From these data we find trends of Li with both temperature and met…
astro-ph2005
Lithium and Lithium Depletion in Halo Stars on Extreme Orbits
Ann Merchant Boesgaard, Alex Stephens, Constantine P. Deliyannis
We have determined Li abundances in 55 metal-poor (3.6 < [Fe/H] < -0.7) stars with extreme orbital kinematics. We find the Li abundance in the Li-plateau stars and examine its decr…
astro-ph2005
Chemical Composition in the Globular Cluster M71 from Keck/HIRES Spectra of Turn-Off Stars
Ann Merchant Boesgaard, Jeremy R. King, Ann Marie Cody +2
We have made observations with the Keck I telescope and HIRES at a resolution of 45,000 of five nearly identical stars at the turn-off of the metal-rich globular cluster M 71…