HE0105-2202

taken from 2 paper(s):

/J.G.Cohen et al.(2004)/ /J.G.Cohen et al.(2013)/

J.G.Cohen et al.,ApJ, 612, 1107, 2004(ADS)

Abundances In Very Metal-Poor Dwarf Stars


Stellar Parameters

Teff : 6330 log g : 4.4 vturb : 1.6

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 I4......5.47+-0.29-2.13+-0.290.47+-0.295.47+-0.29Mg I
Al I2......3.61+-0.05-2.84+-0.05-0.24+-0.053.61+-0.05Al I
Si I1......5.16-2.350.255.16Si I
Ca I4......4.02+-0.11-2.32+-0.110.28+-0.114.02+-0.11Ca I
Sc II3......0.75+-0.25-2.40+-0.250.20+-0.250.75+-0.25Sc II
Ti I3......3.19+-0.16-1.76+-0.160.84+-0.163.19+-0.16Ti I
Ti II11......2.75+-0.13-2.20+-0.130.40+-0.132.75+-0.13Ti II
Cr I3......2.83+-0.15-2.81+-0.15-0.21+-0.152.83+-0.15Cr I
Mn I2......2.13+-0.08-3.30+-0.08-0.70+-0.082.13+-0.08Mn I
Fe I53......4.90+-0.18-2.60+-0.18...4.90+-0.18Fe I
Fe II4......4.92+-0.17-2.58+-0.17...4.92+-0.17Fe II
Co I2......2.86+-0.03-2.13+-0.030.47+-0.032.86+-0.03Co I
Ni I1......3.48-2.74-0.143.48Ni I
Sr II2......-0.02+-0.04-2.89+-0.04-0.29+-0.04-0.02+-0.04Sr II
Ba II2......-0.79+-0.20-2.97+-0.20-0.37+-0.20-0.79+-0.20Ba II
Eu II1......<-0.37<-0.89<1.71<-0.37Eu II

Position

Right Ascension : 01 07 31.20 Declination : -21 46 06.0 Galactic Longitude (l) : N/A Galactic Latitude (b) : N/A

Observing Log

Date of Observation JD Facility Resolution S/N Exposure Time Vrad
2002-09 N/A KECKHIRES 34000 65 3600 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 : 6330+-100 log g : 4.4+-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 I4...0.42+-0.23...-2.19+-0.230.41+-0.235.41+-0.23Mg I
Al I2...-0.32+-0.05...-2.85+-0.05-0.25+-0.053.60+-0.05Al I
Si I1...0.11...-2.400.205.11Si I
Ca I4...0.2+-0.11...-2.33+-0.110.27+-0.114.01+-0.11Ca I
Sc II3...0.2+-0.25...-2.40+-0.250.20+-0.250.75+-0.25Sc II
Ti I3...0.74+-0.16...-1.77+-0.160.83+-0.163.18+-0.16Ti I
Ti II11...0.31+-0.13...-2.20+-0.130.40+-0.132.75+-0.13Ti II
Cr I3...-0.29+-0.15...-2.81+-0.15-0.21+-0.152.83+-0.15Cr I
Mn I2...-0.71+-0.08...-3.30+-0.08-0.70+-0.082.13+-0.08Mn I
Fe IN/A-2.55+-0.15......-2.60+-0.15...4.90+-0.15Fe I
Fe II4-2.53+-0.170.02+-0.17...-2.58+-0.170.02+-0.174.92+-0.17Fe II
Co I2...0.49+-0.03...-2.13+-0.030.47+-0.032.86+-0.03Co I
Ni I1...-0.22...-2.74-0.143.48Ni I
Sr II2...-0.38+-0.04...-2.90+-0.04-0.30+-0.04-0.03+-0.04Sr II
Ba II1...-0.51...-3.11-0.51-0.93Ba II
Eu II1...<1.66...<-0.90<1.70<-0.38Eu II

Binary Parameters

Vrad -77.3

Position

Right Ascension : 01 07 31.20 Declination : -21 46 06.0 Galactic Longitude (l) : N/A Galactic Latitude (b) : N/A

Observing Log

Date of Observation JD Facility Resolution S/N Exposure Time Vrad
2002-09 N/A KECKHIRES 36000 55 3600 -77.3