SDSSJ1830+4141

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
NaN/A...-0.26+-0.182.97+-0.18-3.27+-0.18-0.26+-0.182.97+-0.18Na
MgN/A...0.15+-0.114.75+-0.11-2.85+-0.110.16+-0.114.75+-0.11Mg
CaN/A...0.44+-0.133.77+-0.13-2.57+-0.130.44+-0.133.77+-0.13Ca
Fe IN/A-3.01+-0.20...4.49+-0.20-3.01+-0.20...4.49+-0.20Fe I
Fe IIN/A-3.12+-0.28...4.38+-0.28-3.12+-0.28...4.38+-0.28Fe II
SrN/A...-0.34+-0.24-0.47+-0.24-3.34+-0.24-0.33+-0.24-0.47+-0.24Sr

Binary Parameters

Vrad -270.97+-0.23

Position

Right Ascension : 18 30 45.75 Declination : +41 41 26.6 Galactic Longitude (l) : N/A Galactic Latitude (b) : N/A

Observing Log

Date of Observation JD Facility Resolution S/N Exposure Time Vrad
2008-05-02 N/A SUBARUHDS 36000 35-54 1560 -270.97+-0.23