LP815-43

taken from 19 paper(s):

/G.Israelian et al.(2001)/ /P.E.Nissen et al.(2002)/ /F.Primas et al.(2000)/ /E.Arnone et al.(2005)/ /M.Asplund et al.(2006)/ /P.E.Nissen et al.(2007)/ /C.J.Akerman et al.(2004)/ /G.Bihain et al.(2004)/ /J.Melendez et al.(2006)/ /P.E.Nissen et al.(2004)/ /A.Hosford et al.(2009)/ /J.A.Rich and A. M. Boesgaard(2009)/ /J.Melendez et al.(2010)/ /L.Sbordone et al.(2010)/ /D.Fabbian et al.(2009)/ /A.M.Boesgaard et al.(2011)/ /A.M.Amarsi et al.(2019)/ /R.Smiljanic et al.(2021)/ /G.Israelian et al.(2004)/

G.Israelian et al.,ApJ, 551, 833, 2001(ADS)

Oxygen in the Very Early Galaxy


Stellar Parameters

Teff : 6265 log g : 4.54

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
O IN/A-2.74......-2.450.606.24O I
OHN/A-2.11+-0.270.94...-1.82+-0.271.236.87+-0.27OH
FeN/A-3.05+-0.13......-3.05+-0.13...4.45+-0.13Fe

Position

Right Ascension : 20 38 13.30 Declination : -20 26 10.9 Galactic Longitude (l) : N/A Galactic Latitude (b) : N/A

Observing Log

Date of Observation JD Facility Resolution S/N Exposure Time Vrad
1999-10-08 N/A VLT 40000 100 10800 N/A

P.E.Nissen et al.,AAP, 390, 235, 2002(ADS)

O/Fe in metal-poor main sequence and subgiant stars


Stellar Parameters

Teff : 6514 log g : 4.23 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
[O I]N/A...0.43...-2.240.456.45[O I]
FeN/A-2.72......-2.69...4.81Fe

Position

Right Ascension : 20 38 13.30 Declination : -20 26 10.9 Galactic Longitude (l) : N/A Galactic Latitude (b) : N/A

Observing Log

Date of Observation JD Facility Resolution S/N Exposure Time Vrad
2000-04 N/A VLT 55000 300-400 N/A N/A

F.Primas et al.,AAP, 362, 666, 2000(ADS)

First UVES observations of beryllium in very metal-poor stars


Stellar Parameters

Teff : 6500 log g : 4.25 vturb : 1.75

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......-1.09-2.470.31-1.09Be II
FeN/A-2.95......-2.78...4.72Fe

Position

Right Ascension : 20 38 13.30 Declination : -20 26 10.9 Galactic Longitude (l) : N/A Galactic Latitude (b) : N/A

Observing Log

Date of Observation JD Facility Resolution S/N Exposure Time Vrad
1999-10-08 N/A VLT 40000 65 2x2700 N/A
1999-10-16 N/A VLT 48000 75 1x5400 N/A

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 : 6340 log g : 3.6+-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 I2-2.42+-0.090.39+-0.09...-2.44+-0.090.37+-0.095.16+-0.09Mg I
Ca I1-2.47......-2.450.363.89Ca I
Fe I7-2.81+-0.01......-2.81+-0.01...4.69+-0.01Fe I

Position

Right Ascension : 20 38 13.30 Declination : -20 26 10.9 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 ANGLO 40000 >100 N/A N/A

M.Asplund et al.,ApJ, 644, 229, 2006(ADS)

Lithium Isotopic Abundances in Metal-poor Halo Stars


Stellar Parameters

Teff : 6400 log g : 4.17 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
LiN/A......2.16+-0.01-1.10+-0.011.64+-0.012.16+-0.01Li
ON/A-2.20......-2.150.596.54O
FeN/A-2.74......-2.74...4.76Fe

Isotopic Ratio

6Li/7Li 0.046+-0.022

Binary Parameters

Vrad -3.9

Position

Right Ascension : 20 38 13.30 Declination : -20 26 10.9 Galactic Longitude (l) : N/A Galactic Latitude (b) : N/A

Observing Log

Date of Observation JD Facility Resolution S/N Exposure Time Vrad
2000-07-24-0412 N/A VLT 120000 400 90 -3.8
2000-07-25-0535 N/A VLT 120000 300 40 -3.5
2004-08-30-0452 N/A VLT 120000 420 150 -3.6
2004-08-31-0135 N/A VLT 120000 490 150 -3.9

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

Sulphur and zinc abundances in Galactic halo stars revisited


Stellar Parameters

Teff : 6483 log g : 4.21 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...0.35...-2.150.564.97S I
FeN/A-2.71......-2.71...4.79Fe
Zn IN/A...0.282.17-2.390.322.17Zn I

Position

Right Ascension : 20 38 13.30 Declination : -20 26 10.9 Galactic Longitude (l) : N/A Galactic Latitude (b) : N/A

Observing Log

Date of Observation JD Facility Resolution S/N Exposure Time Vrad
2007-06-25 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 : 6533 log g : 4.25 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......6.14-2.290.386.14C I
O IN/A......6.61-2.080.596.61O I
FeN/A-2.67......-2.67...4.83Fe

Position

Right Ascension : 20 38 13.30 Declination : -20 26 10.9 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 60000 200-300 3600 N/A

G.Bihain et al.,AAP, 423, 777, 2004(ADS)

Cu and Zn in the early Galaxy


Stellar Parameters

Teff : 6265+-125 log g : 4.54+-0.3 vturb : 1.0

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-2.74......-2.57...4.93Fe
Cu IN/A-3.79+-0.15......-3.77+-0.15-1.20+-0.150.42+-0.15Cu I
Zn IN/A<-2.29......<-2.25<0.32<2.31Zn I

Position

Right Ascension : 20 38 13.30 Declination : -20 26 10.9 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 N/A VLT 40000 80-150 N/A N/A

J.Melendez et al.,ApJ, 642, 1082, 2006(ADS)

PERMITTED OXYGEN ABUNDANCES AND THE TEMPERATURE SCALE OF METAL-POOR TURNOFF STARS


Stellar Parameters

Teff : 6622+-55 log g : 4.28+-0.15 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
O IN/A......6.58-2.110.546.58O I
Fe IIN/A......4.85-2.65...4.85Fe II

Position

Right Ascension : 20 38 13.30 Declination : -20 26 10.9 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 60000 200-300 N/A 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 : 6533+-70 log g : 4.25+-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-2.43......-2.350.324.77S I
Fe IIN/A-2.67......-2.67...4.83Fe II

Position

Right Ascension : 20 38 13.30 Declination : -20 26 10.9 Galactic Longitude (l) : N/A Galactic Latitude (b) : N/A

Observing Log

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

A.Hosford et al.,AAP, 493, 601, 2009(ADS)

Lithium abundances of halo dwarfs based on excitation temperature. I. Local thermodynamic equilibrium


Stellar Parameters

Teff : 6529+-107 log g : 4.40+-0.14 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
Li IN/A......2.21+-0.069-1.05+-0.0691.56+-0.0692.21+-0.069Li I
FeN/A-2.61......-2.61...4.89Fe
Fe I157-2.74......-2.74...4.76Fe I

Position

Right Ascension : 20 38 13.30 Declination : -20 26 10.9 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 N/A ANGLO 43000 95 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 : 6405 log g : 4.37

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......-0.95+-0.12-2.33+-0.120.43+-0.12-0.95+-0.12Be II
OHN/A-1.86+-0.15......-1.68+-0.151.08+-0.157.01+-0.15OH
FeN/A-2.76+-0.11......-2.76+-0.11...4.74+-0.11Fe

Position

Right Ascension : 20 38 13.30 Declination : -20 26 10.9 Galactic Longitude (l) : N/A Galactic Latitude (b) : N/A

Observing Log

Date of Observation JD Facility Resolution S/N Exposure Time Vrad
2004-09-07 N/A KECKHIRES 48000 N/A N/A N/A
2006-06-19 N/A KECKHIRES 48000 98 7200 N/A

J.Melendez et al.,AAP, 515, L3, 2010(ADS)

Observational evidence for a broken Li Spite plateau and mass-dependent Li depletion


Stellar Parameters

Teff : 6534+-50 log g : 4.17

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
LiN/A......2.26+-0.035-1.00+-0.0351.78+-0.0352.26+-0.035Li
FeN/A-2.78......-2.78...4.72Fe

Position

Right Ascension : 20 38 13.30 Declination : -20 26 10.9 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 N/A FIESNOT 35000 N/A N/A N/A

L.Sbordone et al.,AAP, 522, A26, 2010(ADS)

The metal-poor end of the Spite plateau. I. Stellar parameters, metallicities, and lithium abundances


Stellar Parameters

Teff : 6453 log g : 3.80 vturb : 1.7

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
LiN/A......2.229-1.031.852.229Li
Fe IN/A......4.62+-0.088-2.88+-0.088...4.62+-0.088Fe I
Fe IIN/A......4.58+-0.051-2.92+-0.051...4.58+-0.051Fe II

Position

Right Ascension : 20 38 13.30 Declination : -20 26 10.9 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 N/A VLT 40000 N/A N/A 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 : 6483 log g : 4.21

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-2.23...6.16-2.270.496.16C
ON/A-1.95...6.71-1.980.786.71O
FeN/A-2.71......-2.76...4.74Fe

Position

Right Ascension : 20 38 13.30 Declination : -20 26 10.9 Galactic Longitude (l) : N/A Galactic Latitude (b) : N/A

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

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


Stellar Parameters

Teff : 6405+-100 log g : 4.37+-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...+0.39+-0.15-0.95+-0.12-2.33+-0.120.43+-0.15-0.95+-0.12Be
ON/A-1.86+-0.22+0.90+-0.24...-1.92+-0.220.84+-0.246.77+-0.22O
MgN/A-2.45+-0.07......-2.47+-0.070.29+-0.075.13+-0.07Mg
TiN/A-2.06+-0.09......-1.99+-0.090.77+-0.092.96+-0.09Ti
FeN/A-2.76+-0.09......-2.76+-0.09...4.74+-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

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

Carbon and oxygen in metal-poor halo stars


Stellar Parameters

Teff : 6461 log g : 4.11

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...0.35...-2.350.356.08C
ON/A...0.70...-2.000.706.69O
FeN/A-2.70......-2.70...4.80Fe

Position

Right Ascension : 20 38 13.30 Declination : -20 26 10.86 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

R.Smiljanic et al.,AAP, 646, A70, 2021(ADS)

Inhomogeneity in the early Galactic chemical enrichment exposed by beryllium abundances in extremely metal-poor stars


Stellar Parameters

Teff : 6520+-130 log g : 4.15+-0.05

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......<-13.4<-14.78<-12.00<-13.4Be
FeN/A-2.78+-0.06......-2.78+-0.06...4.72+-0.06Fe

Position

Right Ascension : 20 38 13.31 Declination : -20 26 10.54 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 N/A 110 N/A N/A

G.Israelian et al.,AAP, 421, 649, 2004(ADS)

Galactic evolution of nitrogen


Stellar Parameters

Teff : 6265+-125 log g : 4.54+-0.30 vturb : 1.00

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
NHN/A<-2.44......<-2.22<0.35<5.61NH
FeN/A-2.74......-2.57...4.93Fe

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
1999-10-08 N/A VLT 40000 100 10800 N/A
1999-10-16 N/A VLT 40000 100 N/A N/A