CS31085-024

taken from 3 paper(s):

/D.K.Lai et al.(2004)/ /D.K.Lai et al.(2007)/ /D.K.Lai et al.(2008)/

D.K.Lai et al.,AJ, 128, 2402, 2004(ADS)

ABUNDANCES OF EXTREMELY METAL-POOR STAR CANDIDATES


Stellar Parameters

Teff : 4931 log g : 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
Mg IN/A...0.58...-2.740.564.86Mg I
Ca IN/A...0.08...-3.200.103.14Ca I
Ti IIN/A...-0.21...-3.44-0.141.51Ti II
Fe IN/A-3.30......-3.30...4.20Fe I
Ba IIN/A...<-1.32...<-4.67<-1.37<-2.49Ba II

Binary Parameters

Vrad -322

Position

Right Ascension : 00 08 27.94 Declination : +10 54 19.8 Galactic Longitude (l) : N/A Galactic Latitude (b) : N/A

Observing Log

Date of Observation JD Facility Resolution S/N Exposure Time Vrad
2000-08-08 N/A KECKII 7000 150 900 N/A

D.K.Lai et al.,ApJ, 667, 1185, 2007(ADS)

Carbon and Strontium Abundances of Metal-poor Stars


Stellar Parameters

Teff : 4931 log g : 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
CN/A...0.05+-0.22...-3.12+-0.220.01+-0.225.31+-0.22C
FeN/A-3.30......-3.13...4.37Fe
SrN/A...-0.95...-4.22-1.09-1.35Sr
BaN/A...<-1.32...<-4.67<-1.54<-2.49Ba

Position

Right Ascension : 00 08 27.94 Declination : +10 54 19.8 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 KECKII 7000 N/A N/A N/A

D.K.Lai et al.,ApJ, 681, 1524, 2008(ADS)

Detailed Abundances for 28 Metal-poor Stars: Stellar Relics in the Milky Way


Stellar Parameters

Teff : 5949+-100 log g : 4.57+-0.2 vturb : 0.9+-0.2

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
C1...0.36+-0.21...-2.23+-0.210.45+-0.216.20+-0.21C
N1...<-0.24...<-2.83<-0.15<5.00N
OH1...0.65...-1.890.796.80OH
Mg7...0.17+-0.03...-2.53+-0.030.15+-0.035.07+-0.03Mg
Si1...0.21+-0.15...-2.43+-0.150.25+-0.155.08+-0.15Si
Ca10...0.22+-0.03...-2.44+-0.030.24+-0.033.90+-0.03Ca
Sc II2...0.14+-0.08...-2.52+-0.080.16+-0.080.63+-0.08Sc II
Ti I4...0.32+-0.05...-2.29+-0.050.39+-0.052.66+-0.05Ti I
Ti II22...0.38+-0.08...-2.23+-0.080.45+-0.082.72+-0.08Ti II
V II3...0.14+-0.10...-2.47+-0.100.21+-0.101.46+-0.10V II
Cr I7...-0.23+-0.04...-2.88+-0.04-0.20+-0.042.76+-0.04Cr I
Cr II1...-0.10+-0.17...-2.75+-0.17-0.07+-0.172.89+-0.17Cr II
Mn I5...-0.41+-0.10...-3.13+-0.10-0.45+-0.102.30+-0.10Mn I
Mn II3...-0.19+-0.08...-2.91+-0.08-0.23+-0.082.52+-0.08Mn II
Fe I101-2.68+-0.08......-2.68+-0.08...4.82+-0.08Fe I
Fe II5-2.71+-0.08......-2.71+-0.08...4.79+-0.08Fe II
Co3...0.37+-0.05...-2.38+-0.050.30+-0.052.61+-0.05Co
Ni3...0.21+-0.05...-2.44+-0.050.24+-0.053.78+-0.05Ni
Cu2...-0.93+-0.06...-3.59+-0.06-0.91+-0.060.60+-0.06Cu
Sr II2...-0.30+-0.10...-2.88+-0.10-0.20+-0.10-0.01+-0.10Sr II
Ba II1...-0.52+-0.18...-3.25+-0.18-0.57+-0.18-1.07+-0.18Ba II
Eu II1...<0.60...<-2.09<0.59<-1.57Eu II

Position

Right Ascension : 00 08 27.94 Declination : +10 54 19.8 Galactic Longitude (l) : N/A Galactic Latitude (b) : N/A

Observing Log

Date of Observation JD Facility Resolution S/N Exposure Time Vrad
2004107-8 N/A KECKHIRES 46000 100 9000 -322.0+-0.2