TY - JOUR
T1 - Determination of [O/Fe] in BD +23 3130 from ESO VLT-UVES observations
AU - Cayrel, R.
AU - Andersen, J.
AU - Barbuy, B.
AU - Beers, T. C.
AU - Bonifacio, P.
AU - François, P.
AU - Hill, V.
AU - Molaro, P.
AU - Nordström, Birgitta
AU - Plez, B.
AU - Primas, F.
AU - Spite, F.
AU - Spite, M.
PY - 2001
Y1 - 2001
N2 - We report a new determination of [O/Fe, the relative logarithmicabundance of O/Fe with respect to the Sun, for the very metal-poor starBD+23 3130 ([Fe/H=-2.6). The value was derived from the forbidden line[O I at 630 nm and from six weak Fe II lines, with a S/N ratiosubstantially larger than those obtained before, thanks to theefficiency of the VLT-UVES instrument at Paranal. We obtain[O/Fe=0.71+/-0.25, a value 0.36 dex higher than the value obtained fromthe same lines by Fulbright and Kraft [AJ 118 (1999) 527, but 0.46lower than the one derived by Israelian et al. [ApJ 507 (1998) 805 fromthe UV OH bands.
AB - We report a new determination of [O/Fe, the relative logarithmicabundance of O/Fe with respect to the Sun, for the very metal-poor starBD+23 3130 ([Fe/H=-2.6). The value was derived from the forbidden line[O I at 630 nm and from six weak Fe II lines, with a S/N ratiosubstantially larger than those obtained before, thanks to theefficiency of the VLT-UVES instrument at Paranal. We obtain[O/Fe=0.71+/-0.25, a value 0.36 dex higher than the value obtained fromthe same lines by Fulbright and Kraft [AJ 118 (1999) 527, but 0.46lower than the one derived by Israelian et al. [ApJ 507 (1998) 805 fromthe UV OH bands.
U2 - 10.1016/S1387-6473(01)00119-1
DO - 10.1016/S1387-6473(01)00119-1
M3 - Article
SN - 1872-9630
VL - 45
SP - 533
EP - 535
JO - New Astronomy Reviews
JF - New Astronomy Reviews
IS - 8
ER -