A0276

Bibliography Data

Title The Oxygen Abundance of the Ultra-metal-poor Star HE 0557-4840
ADS J.E.Norris et al.,ApJ, 753, 150, 2012
Authors J. E. Norris, N. Christlieb, M. S. Bessell, M. Asplund, K. Eriksson, A. J. Korn

List of objects

Object Comment S O
HE0557-4840 N/A S O

S: Find this object in SIMBAD
O: Find this object in Other papers

HE0557-4840

Atmospheric data

Teff : 4900 log g : 2.2 vturb : 1.8

Chemical Abundances

Element Nline [X/H] [X/Fe] log-e
C...-2.93+-0.11.7+-0.15.4+-0.1
N...<-3.63+-0.2<1.0+-0.2<4.0+-0.2
O...-2.33+-0.32.3+-0.36.2+-0.3
Fe I...-4.79+-0.03...2.71+-0.03
Fe II...-4.63+-0.11...2.87+-0.11
    : Data presented in the paper
    : Data converted with the solar abundance from Grevesse et al. (1996)

Binarity

Binarity Negative
Vrad 212.0+-0.4

Basic Informations

Observation Date JD Facility Resolution S/N Exposure Time Vrad
2007-10-15 N/A VLT 40000 N/A N/A 212.0+-0.4
2007-12-05 N/A VLT 40000 N/A N/A 212.0+-0.4
2007-12-06 N/A VLT 40000 N/A N/A 212.0+-0.4
Galactic Longitude (l) : N/A Galactic Latitude (b) : N/A Declination : N/A Right Ascension : N/A