SDSSJ1646+2824

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 : 6100 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
CN/A...2.52+-0.227.90+-0.22-0.53+-0.222.52+-0.227.90+-0.22C
MgN/A...0.71+-0.235.26+-0.23-2.34+-0.230.71+-0.235.26+-0.23Mg
CaN/A...0.48+-0.323.77+-0.32-2.57+-0.320.48+-0.323.77+-0.32Ca
TiN/A...0.41+-0.402.31+-0.40-2.64+-0.400.41+-0.402.31+-0.40Ti
Fe IN/A-3.05+-0.22...4.45+-0.22-3.05+-0.22...4.45+-0.22Fe I
Fe IIN/A-2.96+-0.32...4.53+-0.32-2.97+-0.32...4.53+-0.32Fe II
SrN/A...-0.56+-0.38-0.74+-0.38-3.61+-0.38-0.56+-0.38-0.74+-0.38Sr
BaN/A...1.78+-0.320.91+-0.32-1.27+-0.321.78+-0.320.91+-0.32Ba

Binary Parameters

Vrad -18.72+-0.16

Position

Right Ascension : 16 46 10.20 Declination : +28 24 22.0 Galactic Longitude (l) : N/A Galactic Latitude (b) : N/A

Observing Log

Date of Observation JD Facility Resolution S/N Exposure Time Vrad
2008-07-04 N/A SUBARUHDS 36000 29-46 900 -18.72+-0.16