CS22873-139

  • CS22873-139A in M.Spite+,AAP, 360, 1077, 2000

    • taken from 2 paper(s):

    /G.W.Preston and C. Sneden(2000)/ /M.Spite et al.(2000)/

    G.W.Preston et al.,AJ, 120, 1014, 2000(ADS)

    What Are These Blue Metal-Poor Stars?


    Stellar Parameters

    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
    Fe45-2.85......-2.85...4.65Fe

    Binary Parameters

    Binarity Positive
    Vrad 231.2
    Period 19.165

    Position

    Right Ascension : 20 05 55.15 Declination : -59 17 11.4 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 N/A FRUTTI 30000 10 N/A N/A

    M.Spite et al.,AAP, 360, 1077, 2000(ADS)

    Element abundance ratios in an extremely metal-poor binary star: CS 22873-139


    Stellar Parameters

    Teff : 6300 log g : 4.2 vturb : 1.3

    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
    Na IN/A-3.93...2.40-3.84-0.472.40Na I
    Mg IN/A-3.41...4.17-3.43-0.064.17Mg I
    Al IN/A-4.17...2.30-4.15-0.782.30Al I
    Ca IN/A-3.36...3.15-3.190.183.15Ca I
    Ti IIN/A-2.85...2.17-2.780.592.17Ti II
    Fe IN/A-3.37...4.13-3.37...4.13Fe I
    Fe IIN/A-3.40...4.13-3.37...4.13Fe II
    Sr IIN/A<-4.47...<-1.50<-4.37<-1.00<-1.50Sr II

    Binary Parameters

    Binarity Positive
    Vrad 235.26+-0.39

    Position

    Right Ascension : 20 05 55.15 Declination : -59 17 11.4 Galactic Longitude (l) : N/A Galactic Latitude (b) : N/A

    Observing Log

    Date of Observation JD Facility Resolution S/N Exposure Time Vrad
    1997-10-18 2450739.6 EMMIESO 50000 110 120min 254.8
    1997-10-20 2450741.6 EMMIESO 50000 120 120min 263.1
    1998-10-11 2451097.6 CASPECESO 16000 100 120min 220.6
    1998-10-12 2451098.6 CASPECESO 16000 100 120min 224.3
    1999-07-21 2451380.7 FEROSESO 35 90min 215.3
    1999-08-01 2451391.7 FEROSESO 40 90min 257.4
    1999-08-11 2451401.7 EMMIESO 50000 130 180min 212.2