G20-8

taken from 11 paper(s):

/J.R.Shi et al.(2007)/ /P.E.Nissen et al.(2007)/ /C.J.Akerman et al.(2004)/ /P.E.Nissen et al.(2004)/ /M.Bergemann and T. Gehren(2008)/ /A.M.Boesgaard et al.(2005)/ /A.Stephens and A. M. Boesgaard(2002)/ /M.Bergemann et al.(2010)/ /T.Gehren et al.(2006)/ /D.Fabbian et al.(2009)/ /A.M.Amarsi et al.(2019)/

J.R.Shi et al.,AAP, 465, 587, 2007(ADS)

Lithium abundances in metal-poor stars (Research Note)


Stellar Parameters

Teff : 6115 log g : 4.20 vturb : 1.50

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
Li IN/A......2.30-0.961.222.30Li I
FeN/A-2.19......-2.18...5.32Fe

Position

Observing Log

Date of Observation JD Facility Resolution S/N Exposure Time Vrad
N/A FOCES 40000 100-400 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 : 6194 log g : 4.29 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...0.32...-1.660.535.46S I
FeN/A-2.19......-2.19...5.31Fe
Zn IN/A...0.152.56-2.000.192.56Zn I

Position

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

C.J.Akerman et al.,AAP, 414, 931, 2004(ADS)

The evolution of the C/O ratio in metal-poor halo stars


Stellar Parameters

Teff : 5855 log g : 4.16 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
C IN/A......6.66-1.770.516.66C I
O IN/A......7.53-1.161.127.53O I
FeN/A-2.28......-2.28...5.22Fe

Position

Observing Log

Date of Observation JD Facility Resolution S/N Exposure Time Vrad
N/A VLT 60000 200-300 3600 N/A

P.E.Nissen et al.,AAP, 415, 993, 2004(ADS)

Sulphur and zinc abundances in Galactic stars and damped Ly alpha systems


Stellar Parameters

Teff : 5855+-70 log g : 4.16+-0.15 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
S IN/A-1.85......-1.770.515.35S I
Fe IIN/A-2.28......-2.28...5.22Fe II
Zn IN/A-2.15......-2.140.142.42Zn I

Position

Observing Log

Date of Observation JD Facility Resolution S/N Exposure Time Vrad
2001 N/A VLT 60000 150-300 N/A N/A

M.Bergemann et al.,AAP, 492, 823, 2008(ADS)

NLTE abundances of Mn in a sample of metal-poor stars


Stellar Parameters

Teff : 6115+-80 log g : 4.20+-0.20 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
MgN/A...0.4...-1.810.385.79Mg
Mn2...-0.48+-0.03...-2.71+-0.03-0.52+-0.032.72+-0.03Mn
FeN/A-2.19+-0.05......-2.19+-0.05...5.31+-0.05Fe

Position

Observing Log

Date of Observation JD Facility Resolution S/N Exposure Time Vrad
N/A FOCES 40000 200 N/A N/A

A.M.Boesgaard et al.,ApJ, 633, 398, 2005(ADS)

Lithium and Lithium Depletion in Halo Stars on Extreme Orbits


Stellar Parameters

Teff : 5960+-78 log g : 4.04+-0.39 vturb : 1.52+-0.13

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
Li IN/A......2.22+-0.05-1.04+-0.051.28+-0.052.22+-0.05Li I
FeN/A-2.34+-0.07......-2.32+-0.07...5.18+-0.07Fe

Position

Observing Log

Date of Observation JD Facility Resolution S/N Exposure Time Vrad
N/A KECKHIRES 48000 150 N/A N/A
N/A MAYALLKPNO 35000 215 N/A N/A

A.Stephens et al.,AJ, 123, 1647, 2002(ADS)

ABUNDANCES FROM HIGH-RESOLUTION SPECTRA OF KINEMATICALLY INTERESTING HALO STARS


Stellar Parameters

Teff : 5960+-78 log g : 4.04+-0.39 vturb : 1.52+-0.13

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 IN/A-1.89+-0.09+0.44+-0.11...-1.91+-0.090.41+-0.115.69+-0.09Mg I
Ca IN/A-1.91+-0.09+0.42+-0.11...-1.89+-0.090.43+-0.114.45+-0.09Ca I
TiN/A...+0.40+-0.10...-1.89+-0.100.43+-0.103.06+-0.10Ti
Ti I7-1.93+-0.13......-1.89+-0.130.43+-0.133.06+-0.13Ti I
Ti II7-1.94+-0.11......-1.90+-0.110.42+-0.113.05+-0.11Ti II
CrN/A...+0.20+-0.07...-2.10+-0.070.22+-0.073.54+-0.07Cr
Cr I4-2.49+-0.09......-2.46+-0.09-0.14+-0.093.18+-0.09Cr I
Cr II2-2.04+-0.05......-2.01+-0.050.31+-0.053.63+-0.05Cr II
FeN/A-2.33+-0.06......-2.32+-0.06...5.18+-0.06Fe
Fe I49-2.34+-0.08......-2.33+-0.08...5.17+-0.08Fe I
Fe II9-2.31+-0.09......-2.30+-0.09...5.20+-0.09Fe II
Ni IN/A-2.33+-0.15-0.01+-0.17...-2.30+-0.150.02+-0.173.92+-0.15Ni I
Ba IIN/A-2.61+-0.07-0.29+-0.09...-2.66+-0.07-0.34+-0.09-0.48+-0.07Ba II

Binary Parameters

Vrad -397.2+-0.5

Position

Observing Log

Date of Observation JD Facility Resolution S/N Exposure Time Vrad
2450889.512 MAYALLKPNO 35000 215 1200 -396.7+-1.2
2450987.407 KECKHIRES 48000 150 300 -397.2+-0.5

M.Bergemann et al.,MNRAS, 401, 1334, 2010(ADS)

NLTE analysis of Co i /Co ii lines in spectra of cool stars with new laboratory hyperfine splitting constants


Stellar Parameters

Teff : 6115+-80 log g : 4.20+-0.20 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
FeN/A-2.19......-2.19...5.31Fe
Co2...0.28+-0.15...-1.91+-0.150.28+-0.153.08+-0.15Co

Position

Observing Log

Date of Observation JD Facility Resolution S/N Exposure Time Vrad
N/A FOCES N/A N/A N/A N/A

T.Gehren et al.,AAP, 451, 1065, 2006(ADS)

Na, Mg and Al abundances as a population discriminant for nearby metal-poor stars


Stellar Parameters

Teff : 6115 log g : 4.20+-0.22 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
Na I2...0.28...-1.820.364.42Na I
Mg I4...0.36...-1.850.335.75Mg I
Al I1...-0.90...-3.07-0.893.38Al I
FeN/A-2.19......-2.18...5.32Fe

Position

Observing Log

Date of Observation JD Facility Resolution S/N Exposure Time Vrad
N/A FOCES 40000 200 6100 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 : 6194 log g : 4.29

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-1.85...6.54-1.890.356.54C
ON/A-1.36...7.30-1.390.857.30O
FeN/A-2.19......-2.24...5.26Fe

Position

Observing Log

Date of Observation JD Facility Resolution S/N Exposure Time Vrad
2001 N/A VLT 60000 N/A N/A N/A

A.M.Amarsi et al.,AAP, 622, L4, 2019(ADS)

Carbon and oxygen in metal-poor halo stars


Stellar Parameters

Teff : 6125 log g : 4.38

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...0.28...-1.830.286.60C
ON/A...0.78...-1.330.787.36O
FeN/A-2.11......-2.11...5.39Fe

Position

Right Ascension : 17 39 45.60 Declination : +02 24 59.62 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 VLT 60000 15-300 N/A N/A