SDSSJ230959.55+230803.0

taken from 1 paper(s):

/T.Matsuno et al.(2017)/


T.Matsuno et al.,AJ, 154, 52, 2017(ADS)

High-resolution Spectroscopy of Extremely Metal-poor Stars from SDSS/SEGUE. III. Unevolved Stars with [Fe/H] ≲ -3.5


Stellar Parameters

Teff : 5875+-44 log g : 3.82+-0.13 vturb : 1.00+-0.50

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
Li I1...5.95+-0.141.99+-0.14-1.27+-0.142.69+-0.141.99+-0.14Li I
CHN/A...<2.00<6.47<-1.96<2.00<6.47CH
Na I1...0.43+-0.162.71+-0.15-3.53+-0.150.43+-0.162.71+-0.15Na I
Mg I2...0.43+-0.124.08+-0.13-3.52+-0.130.44+-0.124.08+-0.13Mg I
Ca I1...-0.10+-0.162.28+-0.15-4.06+-0.15-0.10+-0.162.28+-0.15Ca I
Sc IIN/A...<1.15<0.34<-2.81<1.15<0.34Sc II
Ti II1...1.10+-0.172.10+-0.15-2.85+-0.151.11+-0.172.10+-0.15Ti II
Cr IN/A...<0.16<1.84<-3.80<0.16<1.84Cr I
Fe I5...0.00+-0.093.54+-0.09-3.96+-0.090.00+-0.093.54+-0.09Fe I
Fe IIN/A...<0.41<3.96<-3.54<0.41<3.96Fe II
Sr IIN/A...<0.30<-0.79<-3.66<0.30<-0.79Sr II
Ba II1...1.25+-0.17-0.53+-0.17-2.71+-0.171.25+-0.17-0.53+-0.17Ba II

Binary Parameters

Vrad -307.0

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
2009-11-24 N/A SUBARUHDS 60000 20-36 12000 -307.0