HE2246-2410

taken from 2 paper(s):

/J.E.Norris et al.(2013)/ /D.Yong et al.(2013)/


J.E.Norris et al.,ApJ, 762, 25, 2013(ADS)

The Most Metal-poor Stars. I. Discovery, Data, and Atmospheric Parameters


Stellar Parameters

Teff : 6431+-90 log g : 4.2

Position

Right Ascension : 22 48 59.60 Declination : -23 54 39.0 Galactic Longitude (l) : N/A Galactic Latitude (b) : N/A

Observing Log

Date of Observation JD Facility Resolution S/N Exposure Time Vrad
2007-6 2454273.809 MIKELCO 31000-39000 100 -1.8 N/A
2007-6 2454273.827 MIKELCO 31000-39000 100 -4.4 N/A

D.Yong et al.,ApJ, 762, 26, 2013(ADS)

THE MOST METAL-POOR STARS. II. CHEMICAL ABUNDANCES OF 190 METAL-POOR STARS INCLUDING 10 NEW STARS WITH [Fe/H] <-3.


Stellar Parameters

Teff : 6431 log g : 4.36 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
CN/A...<1.39<6.86<-1.57<1.39<6.86C
NN/A...<2.28<7.15<-0.68<2.28<7.15N
Na2...1.42+-0.194.69+-0.19-1.55+-0.191.41+-0.194.69+-0.19Na
Mg3...0.13+-0.144.77+-0.14-2.83+-0.140.13+-0.144.77+-0.14Mg
Al2...-0.83+-0.192.65+-0.19-3.80+-0.19-0.84+-0.192.65+-0.19Al
Si1...0.024.57-2.940.024.57Si
Ca4...0.4+-0.123.78+-0.12-2.56+-0.120.40+-0.123.78+-0.12Ca
Sc1...0.270.46-2.690.270.46Sc
Cr2...-0.27+-0.172.4+-0.17-3.24+-0.17-0.28+-0.172.4+-0.17Cr
Mn2...-0.35+-0.172.12+-0.17-3.31+-0.17-0.35+-0.172.12+-0.17Mn
Fe I38-2.96+-0.14...4.54+-0.14-2.96+-0.14...4.54+-0.14Fe I
Fe II1-2.87+-0.11...4.63+-0.11-2.87+-0.11...4.63+-0.11Fe II
Ni2...0.1+-0.163.36+-0.16-2.86+-0.160.10+-0.163.36+-0.16Ni
Sr2...-0.4+-0.19-0.5+-0.19-3.37+-0.19-0.41+-0.19-0.5+-0.19Sr
Ba1...<-0.30<-1.08<-3.26<-0.30<-1.08Ba

Position

Right Ascension : 22 48 59.60 Declination : -23 54 39.0 Galactic Longitude (l) : N/A Galactic Latitude (b) : N/A

Observing Log

Date of Observation JD Facility Resolution S/N Exposure Time Vrad
N/A VLT N/A N/A N/A N/A