TY - JOUR
T1 - Lithium isotopic abundances in old stars
AU - Perez, Ana Elia Garcia
AU - Inoue, Susumu
AU - Aoki, Wako
AU - Ryan, Sean G.
N1 - “The original publication is available at www.springerlink.com”. Copyright Springer [Full text of this article is not available in the UHRA]
PY - 2008
Y1 - 2008
N2 - Lithium is an element of great importance from a cosmological point of view. Observations of its light isotope Li-6 are very delicate and in the literature, detections for only a handful of metal-poor stars are found. High quality spectra (S/N similar to 450, R similar to 100000) of the Li I 670.8 nm resonance line of six metal-poor stars, taken at the Subaru telescope, are being analysed. The results based on the still early stage of the analysis suggest one possible detection and four possible upper limits (including the two most metal-poor stars in the sample) for Li-6. The observed spectra of the remaining star suggest that there is very little Li-6, if any at all.
AB - Lithium is an element of great importance from a cosmological point of view. Observations of its light isotope Li-6 are very delicate and in the literature, detections for only a handful of metal-poor stars are found. High quality spectra (S/N similar to 450, R similar to 100000) of the Li I 670.8 nm resonance line of six metal-poor stars, taken at the Subaru telescope, are being analysed. The results based on the still early stage of the analysis suggest one possible detection and four possible upper limits (including the two most metal-poor stars in the sample) for Li-6. The observed spectra of the remaining star suggest that there is very little Li-6, if any at all.
U2 - 10.1007/978-3-540-75485-5_2
DO - 10.1007/978-3-540-75485-5_2
M3 - Article
SN - 1431-2433
SP - 9
EP - 13
JO - ESO Astrophysics Symposia
JF - ESO Astrophysics Symposia
ER -