SDSSJ1612+0421

taken from 1 paper(s):

/W.Aoki et al.(2013)/


W.Aoki et al.,AJ, 145, 13, 2013(ADS)

High-resolution Spectroscopy of Extremely Metal-poor Stars from SDSS/SEGUE. I. Atmospheric Parameters and Chemical Compositions


Stellar Parameters

Teff : 5350 log g : 3.3 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
CN/A...0.63+-0.146.20+-0.14-2.23+-0.140.63+-0.146.20+-0.14C
NaN/A...0.12+-0.303.50+-0.30-2.74+-0.300.12+-0.303.50+-0.30Na
MgN/A...0.28+-0.245.03+-0.24-2.57+-0.240.29+-0.245.03+-0.24Mg
CaN/A...0.30+-0.243.79+-0.24-2.55+-0.240.31+-0.243.79+-0.24Ca
TiN/A...0.50+-0.322.59+-0.32-2.36+-0.320.50+-0.322.59+-0.32Ti
Fe IN/A-2.86+-0.34...4.64+-0.34-2.86+-0.34...4.64+-0.34Fe I
Fe IIN/A-2.85+-0.42...4.65+-0.42-2.85+-0.42...4.65+-0.42Fe II
SrN/A...-0.83+-0.43-0.82+-0.43-3.69+-0.43-0.83+-0.43-0.82+-0.43Sr
BaN/A...0.05+-0.43-0.62+-0.43-2.80+-0.430.06+-0.43-0.62+-0.43Ba

Binary Parameters

Vrad 20.40+-0.11

Position

Right Ascension : 16 12 26.18 Declination : +04 21 46.6 Galactic Longitude (l) : N/A Galactic Latitude (b) : N/A

Observing Log

Date of Observation JD Facility Resolution S/N Exposure Time Vrad
2008-10-06 N/A SUBARUHDS 36000 25-43 1200 20.40+-0.11