LP651-4

taken from 5 paper(s):

/E.Arnone et al.(2005)/ /P.E.Nissen et al.(2007)/ /J.A.Rich and A. M. Boesgaard(2009)/ /D.Fabbian et al.(2009)/ /A.M.Boesgaard et al.(2011)/

E.Arnone et al.,AAP, 430, 507, 2005(ADS)

Mg abundances in metal-poor halo stars as a tracer of early Galactic mixing


Stellar Parameters

Teff : 6240 log g : 3.9+-0.2 vturb : 1.0+-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 I3-2.27+-0.040.42+-0.04...-2.29+-0.040.40+-0.045.31+-0.04Mg I
Ca I2-2.43+-0.07......-2.41+-0.070.28+-0.073.93+-0.07Ca I
Fe I14-2.69+-0.03......-2.69+-0.03...4.81+-0.03Fe I

Position

Right Ascension : 02 44 11.72 Declination : -05 27 00.0 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 ANGLO 40000 >100 N/A N/A

P.E.Nissen et al.,AAP, 469, 319, 2007(ADS)

Sulphur and zinc abundances in Galactic halo stars revisited


Stellar Parameters

Teff : 6371 log g : 4.20 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
S IN/A...0.26...-2.160.474.96S I
FeN/A-2.63......-2.63...4.87Fe
Zn IN/A...0.072.04-2.520.112.04Zn I

Position

Right Ascension : 02 44 11.72 Declination : -05 27 00.0 Galactic Longitude (l) : N/A Galactic Latitude (b) : N/A

Observing Log

Date of Observation JD Facility Resolution S/N Exposure Time Vrad
2007-06-25 N/A VLT 60000 N/A N/A N/A

J.A.Rich et al.,ApJ, 701, 1519, 2009(ADS)

BERYLLIUM, OXYGEN, AND IRON ABUNDANCES IN EXTREMELY METAL-DEFICIENT STARS


Stellar Parameters

Teff : 6030 log g : 4.26

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
Be IIN/A......-1.12+-0.12-2.50+-0.120.39+-0.12-1.12+-0.12Be II
OHN/A-2.04+-0.14......-1.86+-0.141.03+-0.146.83+-0.14OH
FeN/A-2.89+-0.08......-2.89+-0.08...4.61+-0.08Fe

Position

Right Ascension : 02 44 11.72 Declination : -05 27 00.0 Galactic Longitude (l) : N/A Galactic Latitude (b) : N/A

Observing Log

Date of Observation JD Facility Resolution S/N Exposure Time Vrad
2006-01-02 N/A KECKHIRES 48000 83 3900 N/A

D.Fabbian et al.,AAP, 500, 1143, 2009(ADS)

The C/O ratio at low metallicity:constraints on early chemical evolution from observations of Galactic halo stars


Stellar Parameters

Teff : 6371 log g : 4.20

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-2.31...6.08-2.350.336.08C
ON/A-1.62...7.04-1.651.037.04O
FeN/A-2.63......-2.68...4.82Fe

Position

Right Ascension : 02 44 11.72 Declination : -05 27 00.0 Galactic Longitude (l) : N/A Galactic Latitude (b) : N/A

Observing Log

Date of Observation JD Facility Resolution S/N Exposure Time Vrad
2004 N/A VLT 60000 115-250 N/A N/A

A.M.Boesgaard et al.,ApJ, 743, 140, 2011(ADS)

Beryllium and Alpha-element Abundances in a Large Sample of Metal-poor Stars


Stellar Parameters

Teff : 6030+-100 log g : 4.26+-0.2 vturb : 1.5+-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
BeN/A...+0.35+-0.15-1.12+-0.12-2.50+-0.120.39+-0.15-1.12+-0.12Be
ON/A-2.04+-0.22+0.85+-0.24...-2.10+-0.220.79+-0.246.59+-0.22O
MgN/A-2.33+-0.07......-2.35+-0.070.54+-0.075.25+-0.07Mg
TiN/A-2.24+-0.09......-2.17+-0.090.72+-0.092.78+-0.09Ti
FeN/A-2.89+-0.09......-2.89+-0.09...4.61+-0.09Fe

Position

Right Ascension : Declination : 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 KECKHIRES 42000 N/A N/A N/A