HE2221-0453

taken from 1 paper(s):

/W.Aoki et al.(2007)/


W.Aoki et al.,ApJ, 655, 492, 2007(ADS)

Carbon-enhanced Metal-poor Stars. I. Chemical Compositions of 26 Stars


Stellar Parameters

Teff : 4400 log g : 0.4 vturb : 2.0

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
CN/A...1.83+-0.318.0+-0.31-0.43+-0.311.84+-0.318.0+-0.31C
CNN/A...0.84+-0.486.4+-0.48-1.43+-0.480.84+-0.486.4+-0.48CN
Mg I1...0.80+-0.176.10+-0.17-1.50+-0.170.77+-0.176.10+-0.17Mg I
Ca I3...0.82+-0.174.91+-0.17-1.43+-0.170.84+-0.174.91+-0.17Ca I
Ti I2...0.54+-0.213.21+-0.21-1.74+-0.210.53+-0.213.21+-0.21Ti I
Ti II1...0.28+-0.242.96+-0.24-1.99+-0.240.28+-0.242.96+-0.24Ti II
Fe I19-2.22+-0.31...5.23+-0.31-2.27+-0.31...5.23+-0.31Fe I
Fe II2-2.23+-0.20...5.23+-0.20-2.27+-0.20...5.23+-0.20Fe II
Zn I1...0.49+-0.262.87+-0.26-1.69+-0.260.58+-0.262.87+-0.26Zn I
Ba II1...1.75+-0.241.69+-0.24-0.49+-0.241.78+-0.241.69+-0.24Ba II

Isotopic Ratio

12C/13C 10+-4

Binary Parameters

Vrad -189.91

Position

Right Ascension : 22 24 25.70 Declination : -04 38 02.0 Galactic Longitude (l) : N/A Galactic Latitude (b) : N/A

Observing Log

Date of Observation JD Facility Resolution S/N Exposure Time Vrad
2002-10-26 N/A SUBARUHDS 50000 N/A 900 -189.91+-0.13