SDSSJ1640+3709

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
NaN/A...-0.08+-0.242.77+-0.24-3.47+-0.24-0.08+-0.242.77+-0.24Na
MgN/A...0.37+-0.164.58+-0.16-3.02+-0.160.37+-0.164.58+-0.16Mg
CaN/A...0.57+-0.213.52+-0.21-2.82+-0.210.57+-0.213.52+-0.21Ca
Fe IN/A-3.39+-0.21...4.11+-0.21-3.39+-0.21...4.11+-0.21Fe I

Binary Parameters

Vrad -51.14+-0.25

Position

Right Ascension : 16 40 05.30 Declination : +37 09 07.8 Galactic Longitude (l) : N/A Galactic Latitude (b) : N/A

Observing Log

Date of Observation JD Facility Resolution S/N Exposure Time Vrad
2008-03-10 N/A SUBARUHDS 36000 29-44 600 -51.14+-0.25