SDSSJ2309+2308

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 : 6350 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...-0.33+-0.282.82+-0.28-3.42+-0.28-0.33+-0.282.82+-0.28Na
MgN/A...0.00+-0.194.52+-0.19-3.08+-0.190.01+-0.194.52+-0.19Mg
CaN/A...-0.66+-0.252.60+-0.25-3.74+-0.25-0.65+-0.252.60+-0.25Ca
Fe IN/A-3.09+-0.26...4.41+-0.26-3.09+-0.26...4.41+-0.26Fe I

Binary Parameters

Vrad -307.47+-0.57

Position

Right Ascension : 23 09 59.55 Declination : +23 08 03.1 Galactic Longitude (l) : N/A Galactic Latitude (b) : N/A

Observing Log

Date of Observation JD Facility Resolution S/N Exposure Time Vrad
2008-07-05 N/A SUBARUHDS 36000 29-49 3000 -307.47+-0.57
2008-07-06 N/A SUBARUHDS 36000 29-49 3000 -307.47+-0.57