SDSSJ2357-0052

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 : 5200 log g : 4.8 vturb : 0.0

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...0.57+-0.225.80+-0.22-2.63+-0.220.57+-0.225.80+-0.22C
MgN/A...0.75+-0.295.15+-0.29-2.45+-0.290.75+-0.295.15+-0.29Mg
Fe IN/A-3.20+-0.34...4.30+-0.34-3.20+-0.34...4.30+-0.34Fe I
SrN/A...0.64+-0.280.30+-0.28-2.57+-0.280.63+-0.280.30+-0.28Sr
BaN/A...1.33+-0.370.30+-0.37-1.88+-0.371.32+-0.370.30+-0.37Ba

Binary Parameters

Vrad -9.40+-0.15

Position

Right Ascension : 23 57 18.91 Declination : -00 52 47.5 Galactic Longitude (l) : N/A Galactic Latitude (b) : N/A

Observing Log

Date of Observation JD Facility Resolution S/N Exposure Time Vrad
2008-10-04 N/A SUBARUHDS 36000 26-47 900 -9.40+-0.15