SDSSJ1834+2023

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 : 6550 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...0.25+-0.235.88+-0.23-1.72+-0.230.26+-0.235.88+-0.23Mg
CaN/A...0.33+-0.234.69+-0.23-1.65+-0.230.33+-0.234.69+-0.23Ca
TiN/A...-0.09+-0.312.88+-0.31-2.07+-0.31-0.09+-0.312.88+-0.31Ti
Fe IN/A-1.98+-0.22...5.52+-0.22-1.98+-0.22...5.52+-0.22Fe I
Fe IIN/A-2.6+-0.35...4.91+-0.35-2.59+-0.35...4.91+-0.35Fe II
SrN/A...-0.05+-0.440.85+-0.44-2.02+-0.44-0.04+-0.440.85+-0.44Sr

Binary Parameters

Vrad -17.45+-0.22

Position

Right Ascension : 18 34 14.29 Declination : +20 23 35.3 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 23-38 1500 -17.45+-0.22