HE0057-5959

  • SMSSJ005953.98-594329.9 in H.R.Jacobson+,ApJ, 807, 171, 2015

    • taken from 4 paper(s):

    /J.E.Norris et al.(2013)/ /D.Yong et al.(2013)/ /H.R.Jacobson et al.(2015)/ /A.Arentsen et al.(2019)/

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

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


    Stellar Parameters

    Teff : 5257+-61 log g : 3.3

    Position

    Right Ascension : 00 59 53.98 Declination : -59 43 29.9 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 2454272.83 MIKELCO 31000-39000 100 374.4 N/A
    2007-6 2454272.861 MIKELCO 31000-39000 100 375.7 N/A
    2007-6 2454272.883 MIKELCO 31000-39000 100 373.3 N/A
    2007-6 2454272.907 MIKELCO 31000-39000 100 372.7 N/A
    2007-6 2454273.838 MIKELCO 31000-39000 100 373.8 N/A
    2007-6 2454273.86 MIKELCO 31000-39000 100 374.7 N/A
    2007-6 2454273.882 MIKELCO 31000-39000 100 375.4 N/A
    2007-6 2454273.904 MIKELCO 31000-39000 100 375.2 N/A
    2007-6 2454274.86 MIKELCO 31000-39000 100 379.4 N/A
    2007-6 2454275.837 MIKELCO 31000-39000 100 374.8 N/A
    2007-6 2454275.859 MIKELCO 31000-39000 100 377.5 N/A
    2007-6 2454275.881 MIKELCO 31000-39000 100 376.4 N/A
    2007-6 2454275.903 MIKELCO 31000-39000 100 375.9 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 : 5257 log g : 2.65 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...0.865.21-3.220.865.21C
    NN/A...2.155.9-1.932.155.9N
    Na2...1.98+-0.174.14+-0.17-2.10+-0.171.98+-0.174.14+-0.17Na
    Mg6...0.51+-0.14.03+-0.1-3.57+-0.10.51+-0.14.03+-0.1Mg
    Ca4...0.65+-0.142.91+-0.14-3.43+-0.140.65+-0.142.91+-0.14Ca
    Sc2...0.17+-0.2-0.76+-0.2-3.91+-0.20.17+-0.2-0.76+-0.2Sc
    Ti I1...0.681.55-3.400.681.55Ti I
    Cr1...-0.51.06-4.58-0.501.06Cr
    Mn1...<0.84<2.19<-3.24<0.84<2.19Mn
    Fe I45-4.08+-0.14...3.42+-0.14-4.08+-0.14...3.42+-0.14Fe I
    Co1...<0.23<1.14<-3.85<0.23<1.14Co
    Ni2...0.17+-0.152.3+-0.15-3.92+-0.150.16+-0.152.3+-0.15Ni
    Sr2...-1.06+-0.2-2.27+-0.2-5.14+-0.2-1.06+-0.2-2.27+-0.2Sr
    Ba1...-0.46-2.36-4.54-0.46-2.36Ba

    Position

    Right Ascension : 00 59 53.98 Declination : -59 43 29.9 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

    H.R.Jacobson et al.,ApJ, 807, 171, 2015(ADS)

    High-Resolution Spectroscopic Study of Extremely Metal-Poor Star Candidates from the SkyMapper Survey


    Stellar Parameters

    Teff : 5413 log g : 2.95 vturb : 1.40

    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
    Li1......2.00-1.262.672.00Li
    C2-2.731.215.70-2.731.205.70C
    Na2-1.941.994.30-1.941.994.30Na
    Mg6-3.320.604.28-3.320.614.28Mg
    Al1-4.18-0.252.27-4.18-0.252.27Al
    Si1-3.200.734.31-3.200.734.31Si
    Ca4-3.380.552.96-3.380.552.96Ca
    Sc2-3.95-0.01-0.80-3.95-0.02-0.80Sc
    Ti I2-3.370.561.58-3.370.561.58Ti I
    Ti II13-3.610.321.34-3.610.321.34Ti II
    Cr I6-4.30-0.371.34-4.30-0.371.34Cr I
    Mn1<-4.42<-0.48<1.01<-4.42<-0.49<1.01Mn
    Fe I44-3.930.003.57-3.930.003.57Fe I
    Fe II3-3.93-0.003.57-3.93-0.003.57Fe II
    Co4-3.270.661.72-3.270.661.72Co
    Ni7-3.630.302.59-3.630.302.59Ni
    Sr2-5.04-1.10-2.17-5.04-1.11-2.17Sr
    Ba1-4.58-0.64-2.40-4.58-0.65-2.40Ba
    Eu1<-2.47<1.47<-1.95<-2.47<1.46<-1.95Eu

    Binary Parameters

    Vrad 376.7

    Position

    Right Ascension : 00 59 53.98 Declination : -59 43 29.9 Galactic Longitude (l) : N/A Galactic Latitude (b) : N/A

    Observing Log

    Date of Observation JD Facility Resolution S/N Exposure Time Vrad
    2013-11-17 N/A MIKELCO 35000 78-105 10140 376.7

    A.Arentsen et al.,AAP, 621, A108, 2019(ADS)

    Binarity among CEMP-no stars: an indication of multiple formation pathways?


    Stellar Parameters

    Teff : 5257 log g : 2.7

    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...0.865.21-3.220.865.21C
    FeN/A-4.08......-4.08...3.42Fe
    BaN/A...-0.46...-4.54-0.46-2.36Ba

    Binary Parameters

    Vrad 375.64+-1.60

    Position

    Right Ascension : 00 59 54.1 Declination : -59 43 30 Galactic Longitude (l) : N/A Galactic Latitude (b) : N/A

    Observing Log

    Date of Observation JD Facility Resolution S/N Exposure Time Vrad
    2013-08 N/A SALTHRS 16000 N/A N/A 375.64+-1.60
    2015-04 N/A SALTHRS 16000 N/A N/A 375.64+-1.60