SDSSJ2308-0855

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
NaN/A...-0.66+-0.212.84+-0.21-3.40+-0.21-0.66+-0.212.84+-0.21Na
MgN/A...0.02+-0.184.88+-0.18-2.72+-0.180.02+-0.184.88+-0.18Mg
CaN/A...-0.15+-0.253.45+-0.25-2.89+-0.25-0.15+-0.253.45+-0.25Ca
Fe IN/A-2.74+-0.21...4.76+-0.21-2.74+-0.21...4.76+-0.21Fe I
Fe IIN/A-3.22+-0.30...4.28+-0.30-3.22+-0.30...4.28+-0.30Fe II
SrN/A...-0.85+-0.32-0.72+-0.32-3.59+-0.32-0.85+-0.32-0.72+-0.32Sr

Binary Parameters

Vrad -111.41+-0.18

Position

Right Ascension : 23 08 14.85 Declination : -08 55 26.4 Galactic Longitude (l) : N/A Galactic Latitude (b) : N/A

Observing Log

Date of Observation JD Facility Resolution S/N Exposure Time Vrad
2008-08-22 N/A SUBARUHDS 36000 32-53 3000 -111.41+-0.18