HE1424-0241

taken from 3 paper(s):

/J.G.Cohen et al.(2007)/ /J.G.Cohen et al.(2008)/ /J.G.Cohen et al.(2013)/

J.G.Cohen et al.,ApJ, 659, L161, 2007(ADS)

A New Type of Extremely Metal-poor Star


Stellar Parameters

Teff : 5195 log g : 2.50

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
CHCH<-3.33<0.62<5.26<-3.17<0.84<5.26CH
NHNH<-2.83<1.12<5.10<-2.73<1.28<5.10NH
Na I2-3.80+-0.070.15+-0.072.52+-0.07-3.72+-0.070.29+-0.072.52+-0.07Na I
Mg I3-3.51+-0.120.44+-0.124.03+-0.12-3.57+-0.120.44+-0.124.03+-0.12Mg I
Al I2-4.73+-0.15-0.78+-0.151.75+-0.15-4.70+-0.15-0.69+-0.151.75+-0.15Al I
Si I1-4.96-1.012.59-4.92-0.912.59Si I
Ca I1-4.52-0.581.84-4.50-0.491.84Ca I
Ca II1-4.26-0.312.10-4.24-0.232.10Ca II
Sc II1-4.05-0.10-0.95-4.10-0.09-0.95Sc II
Ti II8-4.14+-0.17-0.17+-0.170.85+-0.17-4.10+-0.17-0.09+-0.170.85+-0.17Ti II
V II1<-3.36<0.59<0.64<-3.29<0.72<0.64V II
Cr I5-4.34+-0.09-0.38+-0.091.33+-0.09-4.31+-0.09-0.30+-0.091.33+-0.09Cr I
Mn I2-3.80+-0.020.15+-0.021.59+-0.02-3.84+-0.020.17+-0.021.59+-0.02Mn I
Mn II2-3.70+-0.130.25+-0.131.69+-0.13-3.74+-0.130.27+-0.131.69+-0.13Mn II
Fe I39-3.96+-0.180.00+-0.183.49+-0.18-4.01+-0.180.00+-0.183.49+-0.18Fe I
Fe II4-3.87+-0.220.09+-0.223.58+-0.22-3.92+-0.220.09+-0.223.58+-0.22Fe II
Co I4-2.94+-0.211.01+-0.211.98+-0.21-3.01+-0.211.00+-0.211.98+-0.21Co I
Ni I2-3.73+-0.010.22+-0.012.52+-0.01-3.70+-0.010.31+-0.012.52+-0.01Ni I
Cu I1-4.62-0.67-0.41-4.60-0.59-0.41Cu I
Sr II2<-5.65<-1.70<-2.75<-5.62<-1.61<-2.75Sr II
Y II2<-3.70<0.25<-1.46<-3.67<0.34<-1.46Y II
Ba II1-4.87-0.92-2.74-4.92-0.91-2.74Ba II
Eu II1<-2.46<1.49<-1.95<-2.47<1.54<-1.95Eu II

Position

Right Ascension : 14 26 40.30 Declination : -02 54 28.0 Galactic Longitude (l) : N/A Galactic Latitude (b) : N/A

Observing Log

Date of Observation JD Facility Resolution S/N Exposure Time Vrad
2004-05 N/A KECKHIRES 35000 N/A 3600 N/A
2006-04 N/A KECKHIRES 35000 N/A 6000 N/A

J.G.Cohen et al.,ApJ, 672, 320, 2008(ADS)

New Extremely Metal-Poor Stars in the Galactic Halo


Stellar Parameters

Teff : 5193 log g : 2.50 vturb : 1.8

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
CH1...<0.63<5.26<-3.17<0.84<5.26CH
NH1...<1.13<5.10<-2.73<1.28<5.10NH
Na I2...-0.04+-0.072.32+-0.07-3.92+-0.070.09+-0.072.32+-0.07Na I
Mg I3...0.45+-0.124.03+-0.12-3.57+-0.120.44+-0.124.03+-0.12Mg I
Al I2...-0.16+-0.152.35+-0.15-4.10+-0.15-0.09+-0.152.35+-0.15Al I
Si I1...-1.002.59-4.92-0.912.59Si I
Ca I1...-0.561.84-4.50-0.491.84Ca I
Ca II1...-0.302.10-4.24-0.232.10Ca II
Sc II1...-0.08-0.94-4.09-0.08-0.94Sc II
Ti II8...-0.17+-0.170.85+-0.17-4.10+-0.17-0.09+-0.170.85+-0.17Ti II
V II1...<0.60<0.64<-3.29<0.72<0.64V II
Cr I5...-0.38+-0.091.33+-0.09-4.31+-0.09-0.30+-0.091.33+-0.09Cr I
Mn I2...-0.10+-0.021.33+-0.02-4.10+-0.02-0.09+-0.021.33+-0.02Mn I
Mn II3...0.19+-0.131.62+-0.13-3.81+-0.130.20+-0.131.62+-0.13Mn II
Fe I39-3.96+-0.18...3.49+-0.18-4.01+-0.18...3.49+-0.18Fe I
Fe II5-3.87+-0.190.09+-0.193.58+-0.19-3.92+-0.190.09+-0.193.58+-0.19Fe II
Co I4...1.03+-0.211.98+-0.21-3.01+-0.211.00+-0.211.98+-0.21Co I
Ni I2...0.24+-0.012.52+-0.01-3.70+-0.010.31+-0.012.52+-0.01Ni I
Cu I1...-0.66-0.41-4.60-0.59-0.41Cu I
Sr II2...<-1.69+-0.21<-2.75+-0.21<-5.62+-0.21<-1.61+-0.21<-2.75+-0.21Sr II
Y II2...<0.26+-0.19<-1.46+-0.19<-3.67+-0.19<0.34+-0.19<-1.46+-0.19Y II
Ba II1...-0.91-2.74-4.92-0.91-2.74Ba II
Eu II1...<1.50<-1.95<-2.47<1.54<-1.95Eu II
Dy II2...<1.56<-1.30<-2.40<1.61<-1.30Dy II

Position

Right Ascension : 14 26 40.30 Declination : -02 54 28.0 Galactic Longitude (l) : N/A Galactic Latitude (b) : N/A

Observing Log

Date of Observation JD Facility Resolution S/N Exposure Time Vrad
2453152.90 KECKHIRES 35000 90 6000 +58.8+-0.6
2453844.96 KECKHIRES 35000 90 6000 +60.4+-0.1

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

Normal and Outlying Populations of the Milky Way Stellar Halo at [Fe/H] <-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
CH1...<0.66...<-3.27<0.87<5.16CH
NH1...<1.16...<-2.83<1.31<5.00NH
Na I2...0.18+-0.08...-3.83+-0.080.31+-0.082.41+-0.08Na I
Mg I3...0.44+-0.14...-3.71+-0.140.43+-0.143.89+-0.14Mg I
Al I2...-0.18+-0.15...-4.25+-0.15-0.11+-0.152.20+-0.15Al I
Si I1...-1.01...-5.06-0.922.45Si I
K I1...<1.14...<-2.86<1.28<2.17K I
Ca I1...-0.57...-4.64-0.501.70Ca I
Ca II1...-0.27...-4.34-0.202.00Ca II
Sc II1...-0.05...-4.19-0.05-1.04Sc II
Ti II8...-0.14+-0.17...-4.19+-0.17-0.05+-0.170.76+-0.17Ti II
V II1...<0.62...<-3.40<0.74<0.53V II
Cr I5...-0.38+-0.07...-4.44+-0.07-0.30+-0.071.20+-0.07Cr I
Mn I2...-0.26+-0.02...-4.39+-0.02-0.25+-0.021.04+-0.02Mn I
Mn II3...0.23+-0.13...-3.90+-0.130.24+-0.131.53+-0.13Mn II
Fe I40-4.09+-0.17......-4.14+-0.17...3.36+-0.17Fe I
Fe II3-4.06+-0.230.03+-0.23...-4.11+-0.230.03+-0.233.39+-0.23Fe II
Co I4...1+-0.21...-3.16+-0.210.98+-0.211.83+-0.21Co I
Ni I2...0.22+-0.01...-3.84+-0.010.30+-0.012.38+-0.01Ni I
Cu I1...-0.7...-4.77-0.63-0.58Cu I
Sr II2...<-1.66...<-5.72<-1.58<-2.85Sr II
Y II2...<0.29...<-3.77<0.37<-1.56Y II
Ba II1...-0.87...-5.01-0.87-2.83Ba II
Eu II1...<1.53...<-2.57<1.57<-2.05Eu II
Dy II2...<1.57...<-2.52<1.62<-1.42Dy II

Position

Right Ascension : 14 26 40.30 Declination : -02 54 28.0 Galactic Longitude (l) : N/A Galactic Latitude (b) : N/A

Observing Log

Date of Observation JD Facility Resolution S/N Exposure Time Vrad
2004-05 N/A KECKHIRES 36000 70 3600 59.8
2006-04 N/A KECKHIRES 36000 90 6000 60.4
2012-03 N/A KECKHIRES 36000 135 3170 60.9