SDSSJ102915+172927

taken from 1 paper(s):

/E.Caffau et al.(2011)/


E.Caffau et al.,Nature, 477, 67, 2011(ADS)

An extremely primitive star in the Galactic halo


Stellar Parameters

Teff : 5811 log g : 4.0+-0.2 vturb : 1.5

Chemical Abundances

Original Data Converted Data Asplund et al. (2009)
Element Nline [X/H] [X/Fe] log-e [X/H] [X/Fe] log-e Element
LiN/A......<1.1<-2.16<2.55<1.1Li
CN/A<-3.8......<-3.73<0.98<4.70C
NN/A<-4.1......<-4.07<0.64<3.76N
Mg I4-4.68+-0.08......-4.74+-0.08-0.03+-0.082.86+-0.08Mg I
Si I1-4.27+-0.10......-4.26+-0.100.45+-0.103.25+-0.10Si I
Ca I1-4.72+-0.10......-4.73+-0.10-0.02+-0.101.61+-0.10Ca I
Ca II3-4.71+-0.11......-4.72+-0.11-0.01+-0.111.62+-0.11Ca II
Ti II6-4.75+-0.11......-4.80+-0.11-0.09+-0.110.15+-0.11Ti II
Fe I44-4.73+-0.13......-4.71+-0.13...2.79+-0.13Fe I
Ni I10-4.55+-0.14......-4.54+-0.140.17+-0.141.68+-0.14Ni I
Sr II1<-5.1......<-5.05<-0.34<-2.18Sr II

Position

Right Ascension : 10 29 15.15 Declination : +17 29 28.0 Galactic Longitude (l) : N/A Galactic Latitude (b) : N/A

Observing Log

Date of Observation JD Facility Resolution S/N Exposure Time Vrad
N/A VLTXSH N/A N/A N/A -34.5+-1.0