SDSSJ0020-0040

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 : 6450 log g : 4.0 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
MgN/A...0.26+-0.185.05+-0.18-2.55+-0.180.26+-0.185.05+-0.18Mg
CaN/A...0.52+-0.244.05+-0.24-2.29+-0.240.52+-0.244.05+-0.24Ca
TiN/A...0.45+-0.272.59+-0.27-2.36+-0.270.45+-0.272.59+-0.27Ti
Fe IN/A-2.81+-0.21...4.69+-0.21-2.81+-0.21...4.69+-0.21Fe I
Fe IIN/A-2.91+-0.31...4.59+-0.31-2.91+-0.31...4.59+-0.31Fe II
SrN/A...-0.51+-0.31-0.45+-0.31-3.32+-0.31-0.51+-0.31-0.45+-0.31Sr

Binary Parameters

Vrad 3.29+-0.13

Position

Right Ascension : 00 20 15.45 Declination : -00 40 57.9 Galactic Longitude (l) : N/A Galactic Latitude (b) : N/A

Observing Log

Date of Observation JD Facility Resolution S/N Exposure Time Vrad
2008-10-05 N/A SUBARUHDS 36000 35-54 2400 3.29+-0.13