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astro-ph1994
Carbon Abundances in F and G Dwarfs
Helena Andersson, Bengt Edvardsson
We have determined carbon abundances or upper limits from the forbidden [C I] line at 8727.13 A for 85 F and early G type main sequence stars, with metallicities ranging between [F…
astro-ph1994
Abundance Analysis and Origin of the Zeta Sculptoris Open Cluster
Bengt Edvardsson, Bertil Pettersson, Maryam Kharrazi +1
We have determined chemical abundances and radial velocities for stars in the field of the zeta Sculptoris cluster. We find that the cluster metal deficiency previously found from…
astro-ph1994
Boron in the Extreme Pop II Star HD 140283 and the Production of Light Elements in the Early Galaxy
B. Edvardsson, B. Gustafsson, S. G. Johansson +4
Using observations of the 2496.7 A B I line with the HST GHRS at a nominal resolution of 90,000, we have found the abundance of boron of HD 140283 to be log epsilon_B (= 12 + log (…