BS16945-054

taken from 3 paper(s):

/D.K.Lai et al.(2004)/ /D.K.Lai et al.(2007)/ /J.G.Cohen et al.(2013)/

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

ABUNDANCES OF EXTREMELY METAL-POOR STAR CANDIDATES


Stellar Parameters

Teff : 5281 log g : 2.99

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...-2.370.565.23Mg I
Ca IN/A...0.58...-2.330.604.01Ca I
Ti IIN/A...0.42...-2.440.492.51Ti II
Fe IN/A-2.93......-2.93...4.57Fe I
Ba IIN/A...-0.07...-3.05-0.12-0.87Ba II

Binary Parameters

Vrad -71

Position

Observing Log

Date of Observation JD Facility Resolution S/N Exposure Time Vrad
2003-04-23 N/A KECKII 7000 150 600 N/A

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

Carbon and Strontium Abundances of Metal-poor Stars


Stellar Parameters

Teff : 5281 log g : 2.99

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...0.10+-0.26...-2.70+-0.260.06+-0.265.73+-0.26C
FeN/A-2.93......-2.76...4.74Fe
SrN/A...-0.32...-3.22-0.46-0.35Sr
BaN/A...-0.07...-3.05-0.29-0.87Ba

Position

Observing Log

Date of Observation JD Facility Resolution S/N Exposure Time Vrad
N/A KECKII 7000 N/A N/A N/A

J.G.Cohen et al.,ApJ, 778, 56, 2013(ADS)

Normal and Outlying Populations of the Milky Way Stellar Halo at [Fe/H] <-2


Stellar Parameters

Teff : 6020+-100 log g : 3.7+-0.25 vturb : 1.6+-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
Mg I5...0.38+-0.1...-1.99+-0.10.37+-0.15.61+-0.1Mg I
Al I2...-0.32+-0.21...-2.61+-0.21-0.25+-0.213.84+-0.21Al I
Si I1...0.06...-2.210.155.30Si I
Ca I7...0.2+-0.06...-2.09+-0.060.27+-0.064.25+-0.06Ca I
Sc II3...0.07+-0.01...-2.29+-0.010.07+-0.010.86+-0.01Sc II
Ti I3...0.33+-0.07...-1.94+-0.070.42+-0.073.01+-0.07Ti I
Ti II19...0.35+-0.18...-1.92+-0.180.44+-0.183.03+-0.18Ti II
Cr I4...-0.33+-0.09...-2.61+-0.09-0.25+-0.093.03+-0.09Cr I
Mn I2...-0.31+-0.18...-2.66+-0.18-0.30+-0.182.77+-0.18Mn I
Fe IN/A-2.31+-0.13......-2.36+-0.13...5.14+-0.13Fe I
Fe II10-2.33+-0.11-0.02+-0.11...-2.38+-0.11-0.02+-0.115.12+-0.11Fe II
Co I4...0.26+-0.23...-2.12+-0.230.24+-0.232.87+-0.23Co I
Ni I2...-0.11+-0.06...-2.39+-0.06-0.03+-0.063.83+-0.06Ni I
Sr II2...-0.12+-0.04...-2.40+-0.04-0.04+-0.040.47+-0.04Sr II
Ba II2...-0.24+-0.03...-2.60+-0.03-0.24+-0.03-0.42+-0.03Ba II
Nd II1...<1.55...<-0.68<1.68<0.74Nd II
Eu II2...<0.89+-0.01...<-1.43+-0.01<0.93+-0.01<-0.91+-0.01Eu II

Binary Parameters

Vrad -73.5

Position

Observing Log

Date of Observation JD Facility Resolution S/N Exposure Time Vrad
2002-05 N/A KECKHIRES 36000 75 4500 -73.5