SMSSJ022756.48-684256.6

taken from 1 paper(s):

/H.R.Jacobson et al.(2015)/


H.R.Jacobson et al.,ApJ, 807, 171, 2015(ADS)

High-Resolution Spectroscopic Study of Extremely Metal-Poor Star Candidates from the SkyMapper Survey


Stellar Parameters

Teff : 5170 log g : 2.25 vturb : 2.05

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
C2-1.980.246.45-1.980.246.45C
Na2-2.110.124.13-2.110.114.13Na
Mg11-2.130.095.47-2.130.095.47Mg
Al1-3.04-0.833.41-3.04-0.823.41Al
Si1-1.410.816.10-1.410.816.10Si
Ca13-2.050.174.29-2.050.174.29Ca
Sc1-2.27-0.050.88-2.27-0.050.88Sc
Ti I14-2.030.202.92-2.030.192.92Ti I
Ti II40-1.990.242.96-1.990.232.96Ti II
Cr I9-2.33-0.113.31-2.33-0.113.31Cr I
Cr II1-2.190.033.45-2.190.033.45Cr II
Mn3-2.40-0.183.03-2.40-0.183.03Mn
Fe I100-2.220.005.28-2.220.005.28Fe I
Fe II18-2.23-0.005.27-2.23-0.005.27Fe II
Co5-2.010.212.98-2.010.212.98Co
Ni5-2.210.014.01-2.210.014.01Ni
Zn1-2.34-0.122.22-2.34-0.122.22Zn
Sr2-3.17-0.95-0.30-3.17-0.95-0.30Sr
Ba2-2.56-0.33-0.38-2.56-0.34-0.38Ba
Eu1<-1.87<0.35<-1.35<-1.87<0.35<-1.35Eu

Binary Parameters

Vrad 356.9

Position

Right Ascension : 02 27 56.48 Declination : -68 42 56.6 Galactic Longitude (l) : N/A Galactic Latitude (b) : N/A

Observing Log

Date of Observation JD Facility Resolution S/N Exposure Time Vrad
2012-09-09 N/A MIKELCO 28000 35-36 2400 356.9