BD-18_5550

taken from 25 paper(s):

/D.L.Burris et al.(2000)/ /R.Cayrel et al.(2004)/ /M.Spite et al.(2005)/ /J.A.Johnson(2002)/ /A.McWilliam et al.(1995)/ /A.McWilliam et al.(1995)/ /J.Melendez and B. Barbuy(2002)/ /T.V.Mishenina et al.(2002)/ /T.V.Mishenina and V. V. Kovtyukh(2001)/ /M.Spite et al.(2006)/ /S.M.Andrievsky et al.(2007)/ /J.A.Johnson et al.(2007)/ /G.Bihain et al.(2004)/ /B.W.Carney et al.(2003)/ /S.M.Andrievsky et al.(2008)/ /J.A.Johnson and M. Bolte(2002)/ /J.A.Johnson and M. Bolte(2001)/ /S.M.Andrievsky et al.(2009)/ /S.M.Andrievsky et al.(2010)/ /Y.Takeda and M. Takada-Hidai(2011)/ /M.Spite et al.(2011)/ /P.Francois et al.(2007)/ /J.K.Hollek et al.(2011)/ /M.Spite et al.(2012)/ /I.U.Roederer et al.(2014)/

D.L.Burris et al.,ApJ, 544, 302, 2000(ADS)

NEUTRON-CAPTURE ELEMENTS IN THE EARLY GALAXY: INSIGHTS FROM A LARGE SAMPLE OF METAL-POOR GIANTS


Stellar Parameters

Teff : 4575 log g : 1.40 vturb : 1.80

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-2.93......-2.76...4.74Fe
BaN/A...-0.90-1.70-3.88-1.12-1.70Ba
EuN/A...-0.07-2.49-3.01-0.25-2.49Eu

Position

Right Ascension : 19 58 49.70 Declination : -18 12 11.0 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 MAYALLKPNO 20000 100-200 N/A N/A

R.Cayrel et al.,AAP, 416, 1117, 2004(ADS)

First stars V - Abundance patterns from C to Zn and supernova yields in the early Galaxy


Stellar Parameters

Teff : 4750 log g : 1.4 vturb : 1.8

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
CHN/A-3.08-0.025.44-2.990.075.44CH
[O I]N/A-2.640.426.13-2.560.506.13[O I]
Na I2-3.010.053.32-2.920.143.32Na I
Mg I8-2.75+-0.150.31+-0.154.83+-0.15-2.77+-0.150.29+-0.154.83+-0.15Mg I
Al I2-3.65-0.592.82-3.63-0.572.82Al I
Si I1-2.670.394.88-2.630.434.88Si I
K I2-2.540.522.58-2.450.612.58K I
Ca I16-2.65+-0.100.41+-0.103.71+-0.10-2.63+-0.100.43+-0.103.71+-0.10Ca I
Sc II7-3.02+-0.090.04+-0.090.15+-0.09-3.00+-0.090.06+-0.090.15+-0.09Sc II
Ti I13-2.90+-0.040.16+-0.042.12+-0.04-2.83+-0.040.23+-0.042.12+-0.04Ti I
Ti II30-2.92+-0.090.14+-0.092.10+-0.09-2.85+-0.090.21+-0.092.10+-0.09Ti II
Cr I7-3.40+-0.10-0.34+-0.102.27+-0.10-3.37+-0.10-0.31+-0.102.27+-0.10Cr I
Mn I3-3.44+-0.05-0.38+-0.051.95+-0.05-3.48+-0.05-0.42+-0.051.95+-0.05Mn I
Fe I148-3.06+-0.120.00+-0.124.44+-0.12-3.06+-0.120.00+-0.124.44+-0.12Fe I
Fe II17-3.06+-0.100.00+-0.104.44+-0.10-3.06+-0.100.00+-0.104.44+-0.10Fe II
Co I3-2.87+-0.120.19+-0.122.05+-0.12-2.94+-0.120.12+-0.122.05+-0.12Co I
Ni I3-3.11+-0.10-0.05+-0.103.14+-0.10-3.08+-0.10-0.02+-0.103.14+-0.10Ni I
Zn I1-2.840.221.76-2.800.261.76Zn I

Binary Parameters

Binarity Unknown

Position

Right Ascension : 19 58 49.70 Declination : -18 12 11.0 Galactic Longitude (l) : N/A Galactic Latitude (b) : N/A

Observing Log

Date of Observation JD Facility Resolution S/N Exposure Time Vrad
2000-10 N/A VLT 47000 220 1800 N/A
2001-09 N/A VLT N/A N/A N/A N/A

M.Spite et al.,AAP, 430, 655, 2005(ADS)

First stars VI - Abundances of C, N, O, Li, and mixing in extremely metal-poor giants. Galactic evolution of the light elements


Stellar Parameters

Teff : 4750 log g : 1.4 vturb : 1.8

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......0.75+-0.04-2.51+-0.040.55+-0.040.75+-0.04Li I
CN/A-3.08+-0.04......-2.99+-0.040.07+-0.045.44+-0.04C
NN/A-3.42......-3.33-0.274.50N
[O I]N/A-2.64......-2.590.476.10[O I]
FeN/A-3.06......-3.06...4.44Fe

Position

Right Ascension : 19 58 49.70 Declination : -18 12 11.0 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 VLT 47000 30 N/A N/A

J.A.Johnson et al.,ApJS, 139, 219, 2002(ADS)

ABUNDANCES OF 30 ELEMENTS IN 23 METAL-POOR STARS


Stellar Parameters

Teff : 4600 log g : 0.95 vturb : 1.90

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......3.47+-0.21-2.77+-0.210.26+-0.213.47+-0.21Na I
Mg I8......5.17+-0.14-2.43+-0.140.60+-0.145.17+-0.14Mg I
Al I1......2.94+-0.26-3.51+-0.26-0.48+-0.262.94+-0.26Al I
Si I1......5.01+-0.22-2.50+-0.220.53+-0.225.01+-0.22Si I
Ca I15......3.73+-0.04-2.61+-0.040.42+-0.043.73+-0.04Ca I
Sc II7......0.00+-0.10-3.15+-0.10-0.12+-0.100.00+-0.10Sc II
Ti I25......2.05+-0.08-2.90+-0.080.13+-0.082.05+-0.08Ti I
Ti II16......2.09+-0.07-2.86+-0.070.17+-0.072.09+-0.07Ti II
V I2......0.88+-0.11-3.05+-0.11-0.02+-0.110.88+-0.11V I
V II5......0.88+-0.08-3.05+-0.08-0.02+-0.080.88+-0.08V II
Cr I11......2.43+-0.07-3.21+-0.07-0.18+-0.072.43+-0.07Cr I
Cr II2......2.80+-0.11-2.84+-0.110.19+-0.112.80+-0.11Cr II
Mn I4......2.03+-0.08-3.40+-0.08-0.37+-0.082.03+-0.08Mn I
Mn II3......2.19+-0.16-3.24+-0.16-0.21+-0.162.19+-0.16Mn II
Fe I151......4.47+-0.08-3.03+-0.08...4.47+-0.08Fe I
Fe II19......4.46+-0.08-3.04+-0.08...4.46+-0.08Fe II
Co I7......2.12+-0.12-2.87+-0.120.16+-0.122.12+-0.12Co I
Ni I19......3.27+-0.15-2.95+-0.150.08+-0.153.27+-0.15Ni I
Zn I2......1.94+-0.05-2.62+-0.050.41+-0.051.94+-0.05Zn I
Y II6......-1.81+-0.05-4.02+-0.05-0.99+-0.05-1.81+-0.05Y II
Zr II3......-1.22+-0.09-3.80+-0.09-0.77+-0.09-1.22+-0.09Zr II
Ba II3......-1.67+-0.16-3.85+-0.16-0.82+-0.16-1.67+-0.16Ba II
La II1......-2.43+-0.14-3.53+-0.14-0.50+-0.14-2.43+-0.14La II
Pr IIN/A......<-1.69<-2.41<0.62<-1.69Pr II
Eu II1......-2.79+-0.22-3.31+-0.22-0.28+-0.22-2.79+-0.22Eu II
Tb IIN/A......<-2.25<-2.57<0.46<-2.25Tb II
Dy II1......-2.28+-0.20-3.38+-0.20-0.35+-0.20-2.28+-0.20Dy II
Ho IIN/A......<-0.90<-1.37<1.66<-0.90Ho II
Er II1......-2.22+-0.12-3.14+-0.12-0.11+-0.12-2.22+-0.12Er II
Tm IIN/A......<-1.47<-1.59<1.44<-1.47Tm II
Yb II1......-2.79+-0.21-3.71+-0.21-0.68+-0.21-2.79+-0.21Yb II
Hf IIN/A......<-1.02<-1.73<1.30<-1.02Hf II
Os IN/A......<-0.55<-1.95<1.08<-0.55Os I

Position

Right Ascension : 19 58 49.70 Declination : -18 12 11.0 Galactic Longitude (l) : N/A Galactic Latitude (b) : N/A

Observing Log

Date of Observation JD Facility Resolution S/N Exposure Time Vrad
1997-05-12 N/A KECKHIRES 45000 350 1800 N/A
1997-06-20 N/A KECKHIRES 45000 N/A 1800 N/A
1998-08-12 N/A LICKHAMILTON 60000 90 2700 N/A

A.McWilliam et al.,AJ, 109, 2736, 1995(ADS)

A Spectroscopic Analysis of 33 of the Most Metal-Poor Stars.I.


Position

Right Ascension : 19 58 49.70 Declination : -18 12 11.0 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 N/A FRUTTI 22000 N/A N/A N/A

A.McWilliam et al.,AJ, 109, 2757, 1995(ADS)

Spectroscopic Analysis of 33 of the Most Metal Poor Stars. II.


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...0.00...-2.78-0.045.65C
NaN/A...-0.18...-3.00-0.263.24Na
MgN/A...0.44...-2.490.255.11Mg
CaN/A...0.38...-2.510.233.83Ca
Fe IN/A-2.91......-2.74...4.76Fe I
Fe IIN/A-2.91......-2.74...4.76Fe II
NiN/A...-0.13...-3.01-0.273.21Ni
SrN/A...-1.16...-4.04-1.30-1.17Sr
BaN/A...-0.81...-3.77-1.03-1.59Ba
EuN/A...0.17...-2.75-0.01-2.23Eu

Position

Right Ascension : 19 58 49.70 Declination : -18 12 11.0 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 FRUTTI 22000 N/A N/A N/A

J.Melendez et al.,ApJ, 575, 474, 2002(ADS)

Keck NIRSPEC Infrared OH Lines: Oxygen Abundances in Metal-poor Stars down to [Fe/H] = -2.9


Stellar Parameters

Teff : 4683 log g : 1.7 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
CN/A...-0.39...-3.14-0.275.29C
OHN/A...+0.53...-2.260.616.43OH
Fe IIN/A-2.87......-2.87...4.63Fe II

Position

Right Ascension : 19 58 49.70 Declination : -18 12 11.0 Galactic Longitude (l) : N/A Galactic Latitude (b) : N/A

Observing Log

Date of Observation JD Facility Resolution S/N Exposure Time Vrad
2001-06-12 N/A KECKNIRSPEC 37000 350 12x120 N/A
2001-10-01 N/A FEROSESO 48000 200 3600 N/A

T.V.Mishenina et al.,AAP, 396, 189, 2002(ADS)

Abundances of Cu and Zn in metal-poor stars: Clues for Galaxy evolution


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-3.01......-3.01...4.49Fe
Zn IN/A...-0.03+-0.26...-3.00+-0.260.01+-0.261.56+-0.26Zn I

Position

Right Ascension : 19 58 49.70 Declination : -18 12 11.0 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 N/A ELODIE 42000 >100 N/A N/A

T.V.Mishenina et al.,AAP, 370, 951, 2001(ADS)

Analysis of neutron capture elements in metal-poor stars


Stellar Parameters

Teff : 4600 log g : 0.5 vturb : 1.2

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 IN/A...0.28...-2.750.264.85Mg I
FeN/A-3.01......-3.01...4.49Fe
Ba IIN/A...-1.12...-4.18-1.17-2.00Ba II

Position

Right Ascension : 19 58 49.70 Declination : -18 12 11.0 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 N/A ELODIE 42000 >100 N/A N/A

M.Spite et al.,AAP, 455, 291, 2006(ADS)

First stars IX - Mixing in extremely metal-poor giants. Variation of the 12C/13C, [Na/Mg] and [Al/Mg] ratios


Stellar Parameters

Teff : 4750 log g : 1.4 vturb : 1.8

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-3.08+-0.04......-2.99+-0.040.07+-0.045.44+-0.04C
NN/A-3.42+-0.10......-3.33+-0.10-0.27+-0.104.50+-0.10N
FeN/A-3.06......-3.06...4.44Fe

Isotopic Ratio

12C/13C >40

Position

Right Ascension : 19 58 49.70 Declination : -18 12 11.0 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 VLT 47000 130 N/A N/A

S.M.Andrievsky et al.,AAP, 464, 1081, 2007(ADS)

NLTE determination of the sodium abundance in a homogeneous sample of extremely metal-poor stars


Stellar Parameters

Teff : 4750 log g : 1.4 vturb : 1.8

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
NaN/A-3.35-0.292.90-3.34-0.282.90Na
FeN/A-3.06......-3.06...4.44Fe

Position

Right Ascension : 19 58 49.70 Declination : -18 12 11.0 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 VLT 43000 200 N/A N/A

J.A.Johnson et al.,ApJ, 658, 1203, 2007(ADS)

A Search for Nitrogen-enhanced Metal-poor Stars


Stellar Parameters

Teff : 4806 log g : 1.72 vturb : 1.91

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...-0.20+-0.295.47+-0.25-2.96+-0.25-0.09+-0.295.47+-0.25C
FeN/A-2.89+-0.21......-2.87+-0.21...4.63+-0.21Fe

Position

Right Ascension : 19 58 49.70 Declination : -18 12 11.0 Galactic Longitude (l) : N/A Galactic Latitude (b) : N/A

Observing Log

Date of Observation JD Facility Resolution S/N Exposure Time Vrad
2003-09-05 N/A RCCTIO N/A 192 1200 N/A

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

Cu and Zn in the early Galaxy


Stellar Parameters

Teff : 4668+-63 log g : 1.5+-0.3 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-3.01......-2.84...4.66Fe
Cu IN/A-3.94+-0.20......-3.92+-0.20-1.08+-0.200.27+-0.20Cu I
Zn IN/A-2.81+-0.17......-2.77+-0.170.07+-0.171.79+-0.17Zn I

Position

Right Ascension : 19 58 49.70 Declination : -18 12 11.0 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 N/A WHTUES 50000 80-150 N/A N/A

B.W.Carney et al.,AJ, 125, 293, 2003(ADS)

Spectroscopic Binaries, Velocity Jitter, and Rotation in Field Metal-poor Red Giant and Red Horizontal-Branch Stars


Stellar Parameters

Teff : 4820 log g : 1.8

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-3.11......-3.11...4.39Fe

Binary Parameters

Vrad -125.48

Position

Right Ascension : 19 58 49.70 Declination : -18 12 11.0 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 2445917.65764 WYETH N/A N/A N/A -125.88+-0.87
N/A 2445951.56152 WYETH N/A N/A N/A -125.84+-0.82
N/A 2446281.62347 WYETH N/A N/A N/A -125.52+-0.56
N/A 2446637.69898 WYETH N/A N/A N/A -125.09+-0.53
N/A 2446688.62502 WYETH N/A N/A N/A -125.49+-0.57
N/A 2446990.85128 MMT N/A N/A N/A -125.06+-0.39
N/A 2447390.62202 WYETH N/A N/A N/A -125.33+-0.59
N/A 2447661.97458 TILLINGHAST N/A N/A N/A -125.61+-0.49
N/A 2448408.98262 TILLINGHAST N/A N/A N/A -125.82+-0.46
N/A 2449109.99796 TILLINGHAST N/A N/A N/A -125.11+-0.43
N/A 2450641.75242 WYETH N/A N/A N/A -125.26+-0.52
N/A 2450710.53102 WYETH N/A N/A N/A -125.71+-0.53

S.M.Andrievsky et al.,AAP, 481, 481, 2008(ADS)

NLTE determination of the aluminium abundance in a homogeneous sample of extremely metal-poor stars


Stellar Parameters

Teff : 4750 log g : 1.4 vturb : 1.8

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
AlN/A-3.12-0.063.35-3.10-0.043.35Al
FeN/A-3.06......-3.06...4.44Fe

Position

Right Ascension : 19 58 49.70 Declination : -18 12 11.0 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 VLT 47000 120 N/A N/A

J.A.Johnson et al.,ApJ, 579, 616, 2002(ADS)

The r-Process in the Early Galaxy


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-3.04......-2.87...4.63Fe
Sr IIN/A......-1.20+-0.30-4.07+-0.30-1.20+-0.30-1.20+-0.30Sr II
Y IIN/A......-1.81+-0.05-4.02+-0.05-1.15+-0.05-1.81+-0.05Y II
Zr IIN/A......-1.22+-0.09-3.80+-0.09-0.93+-0.09-1.22+-0.09Zr II
Pd IN/A......<-0.55<-2.12<0.75<-0.55Pd I
Ba IIN/A......-1.67+-0.16-3.85+-0.16-0.98+-0.16-1.67+-0.16Ba II

Position

Right Ascension : 19 58 49.70 Declination : -18 12 11.0 Galactic Longitude (l) : N/A Galactic Latitude (b) : N/A

Observing Log

Date of Observation JD Facility Resolution S/N Exposure Time Vrad
1997-05-12 N/A KECKHIRES 45000 350 1800 N/A
1997-06-20 N/A KECKHIRES 45000 1800 N/A
1998-08-12 N/A LICKHAMILTON 60000 90 2700 N/A

J.A.Johnson et al.,ApJ, 554, 888, 2001(ADS)

Th Ages for Metal-poor Stars


Stellar Parameters

Teff : 4600 log g : 0.95 vturb : 1.90

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
Fe I151-3.05+-0.08......-2.88+-0.08...4.62+-0.08Fe I
Fe II19-3.06+-0.08......-2.89+-0.08...4.61+-0.08Fe II
Ba II3...-0.75+-0.16...-3.85+-0.16-0.97+-0.16-1.67+-0.16Ba II
La II1...-0.60+-0.14...-3.53+-0.14-0.65+-0.14-2.43+-0.14La II
Pr IIN/A...<0.65...<-2.41<0.47<-1.69Pr II
Eu II1...-0.25+-0.22...-3.31+-0.22-0.43+-0.22-2.79+-0.22Eu II
Tb IIN/A...<0.47...<-2.57<0.31<-2.25Tb II
Dy II1...-0.33+-0.20...-3.38+-0.20-0.50+-0.20-2.28+-0.20Dy II
Ho IIN/A...<1.65...<-1.37<1.51<-0.90Ho II
Er II1...-0.10+-0.12...-3.14+-0.12-0.26+-0.12-2.22+-0.12Er II
Tm IIN/A...<1.45...<-1.59<1.29<-1.47Tm II
Yb II1...-0.82+-0.21...-3.84+-0.21-0.96+-0.21-2.92+-0.21Yb II
Hf IIN/A...<1.15...<-1.88<1.00<-1.17Hf II
Os IN/A...<1.05...<-1.95<0.93<-0.55Os I
Th IIN/A...<-0.05...<-3.08<-0.20<-3.02Th II

Isotopic Ratio

12C/13C 32

Position

Right Ascension : 19 58 49.70 Declination : -18 12 11.0 Galactic Longitude (l) : N/A Galactic Latitude (b) : N/A

Observing Log

Date of Observation JD Facility Resolution S/N Exposure Time Vrad
1997-05-12 N/A KECKHIRES 45000 350 1800 N/A
1997-06-20 N/A KECKHIRES 45000 1800 N/A
1998-08-12 N/A LICKHAMILTON 60000 90 2700 N/A

S.M.Andrievsky et al.,AAP, 494, 1083, 2009(ADS)

Evolution of the barium abundance in the early Galaxy from a NLTE analysis of the Ba lines in a homogeneous sample of EMP stars


Stellar Parameters

Teff : 4750 log g : 1.4 vturb : 1.8

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-3.06......-3.06...4.44Fe
Ba3......-1.67-3.85-0.79-1.67Ba

Position

Right Ascension : 19 58 49.70 Declination : -18 12 11.0 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 VLT 45000 130 N/A N/A

S.M.Andrievsky et al.,AAP, 509, A88, 2010(ADS)

Non-LTE abundances of Mg and K in extremely metal-poor stars and the evolution of [O/Mg], [Na/Mg], [Al/Mg], and [K/Mg] in the Milky Way


Stellar Parameters

Teff : 4750 log g : 1.4 vturb : 1.8

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......4.99-2.610.454.99Mg
KN/A......2.63-2.400.662.63K
FeN/A-3.06......-3.06...4.44Fe

Position

Right Ascension : 19 58 49.70 Declination : -18 12 11.0 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 N/A VLT 45000 120 N/A N/A

Y.Takeda et al.,PASJ, 63, S537, 2011(ADS)

Exploring the [S/Fe] Behavior of Metal-Poor Stars with the Si 1.046 um Lines


Stellar Parameters

Teff : 4750 log g : 1.40 vturb : 1.80

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......5.15-1.971.095.15S I
FeN/A-3.06......-3.06...4.44Fe

Position

Right Ascension : 19 58 49.70 Declination : -18 12 11.0 Galactic Longitude (l) : N/A Galactic Latitude (b) : N/A

Observing Log

Date of Observation JD Facility Resolution S/N Exposure Time Vrad
2009-07-29 N/A SUBARUIRCS 20000 100-200 N/A N/A

M.Spite et al.,AAP, 528, A9, 2011(ADS)

First stars. XIV. Sulfur abundances in extremely metal-poor stars


Stellar Parameters

Teff : 4750 log g : 1.4 vturb : 1.8

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 I1......4.65+-0.12-2.47+-0.120.59+-0.124.65+-0.12S I
FeN/A-3.06......-3.06...4.44Fe

Position

Right Ascension : 19 58 49.70 Declination : -18 12 11.0 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 VLT 43000 180 N/A N/A

P.Francois et al.,AAP, 476, 935, 2007(ADS)

First stars. VIII. Enrichment of the neutron-capture elements in the early Galaxy


Stellar Parameters

Teff : 4750 log g : 1.4 vturb : 1.8

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-3.06......-3.06...4.44Fe
Sr2...-1.01...-4.02-0.96-1.15Sr
YN/A...<-1.38...<-4.41<-1.35<-2.20Y
Zr5...-0.71...-3.75-0.69-1.17Zr
Ba4...-0.74...-3.85-0.79-1.67Ba
LaN/A...<-0.91...<-3.90<-0.84<-2.80La
CeN/A...<-0.42...<-3.48<-0.42<-1.90Ce
Nd2...-0.46...-3.44-0.38-2.02Nd
SmN/A...<0.05...<-2.96<0.10<-2.00Sm
Eu1...-0.20...-3.27-0.21-2.75Eu
Gd1...-0.26...-3.27-0.21-2.20Gd
DyN/A...<-0.08...<-3.10<-0.04<-2.00Dy
Ho1...-0.20...-3.47-0.41-3.00Ho
Er2...-0.12...-3.17-0.11-2.25Er

Position

Right Ascension : 19 58 49.70 Declination : -18 12 11.0 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 VLT 47000 >50 N/A N/A

J.K.Hollek et al.,ApJ, 742, 54, 2011(ADS)

The Chemical Abundances of Stars in the Halo (CASH) Project. II. A Sample of 14 Extremely Metal-poor Stars


Stellar Parameters

Teff : 4600 log g : 0.80 vturb : 1.70

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......0.41+-0.15-2.85+-0.150.35+-0.150.41+-0.15Li I
CN/A...0.13+-0.205.36+-0.20-3.07+-0.200.13+-0.205.36+-0.20C
Mg I6...0.50+-0.064.90+-0.06-2.70+-0.060.50+-0.064.90+-0.06Mg I
Al I1...-0.69+-0.152.56+-0.15-3.89+-0.15-0.69+-0.152.56+-0.15Al I
Si I1...0.59+-0.154.90+-0.15-2.61+-0.150.59+-0.154.90+-0.15Si I
Ca I23...0.45+-0.053.59+-0.05-2.75+-0.050.45+-0.053.59+-0.05Ca I
Sc II9...-0.07+-0.07-0.12+-0.07-3.27+-0.07-0.07+-0.07-0.12+-0.07Sc II
Ti I26...0.14+-0.061.89+-0.06-3.06+-0.060.14+-0.061.89+-0.06Ti I
Ti II45...0.22+-0.081.97+-0.08-2.98+-0.080.22+-0.081.97+-0.08Ti II
Cr I18...-0.24+-0.052.20+-0.05-3.44+-0.05-0.24+-0.052.20+-0.05Cr I
Cr II2...0.52+-0.252.78+-0.25-2.86+-0.250.34+-0.252.78+-0.25Cr II
Mn I8...-0.26+-0.121.97+-0.12-3.46+-0.12-0.26+-0.121.97+-0.12Mn I
FeN/A-3.20......-3.20...4.30Fe
Co I8...0.19+-0.131.98+-0.13-3.01+-0.130.19+-0.131.98+-0.13Co I
Ni I20...0.15+-0.113.17+-0.11-3.05+-0.110.15+-0.113.17+-0.11Ni I
Zn I2...0.34+-0.151.70+-0.15-2.86+-0.150.34+-0.151.70+-0.15Zn I
Sr II2...-0.9+-0.15-1.23+-0.15-4.10+-0.15-0.90+-0.15-1.23+-0.15Sr II
Y II1...-1.12+-0.15-2.11+-0.15-4.32+-0.15-1.12+-0.15-2.11+-0.15Y II
Zr II1...-0.58+-0.15-1.20+-0.15-3.78+-0.15-0.58+-0.15-1.20+-0.15Zr II
Ba II4...-0.76+-0.15-1.78+-0.15-3.96+-0.15-0.76+-0.15-1.78+-0.15Ba II
La II...<0.04+-0.15<-2.06+-0.15<-3.16+-0.15<0.04+-0.15<-2.06+-0.15La II
Eu II...<0.18+-0.15<-2.50+-0.15<-3.02+-0.15<0.18+-0.15<-2.50+-0.15Eu II

Position

Right Ascension : 19 58 49.70 Declination : -18 12 11.0 Galactic Longitude (l) : N/A Galactic Latitude (b) : N/A

Observing Log

Date of Observation JD Facility Resolution S/N Exposure Time Vrad
2009-07-27 N/A MIKELCO 35000 157 87 -125.3

M.Spite et al.,AAP, 541, A143, 2012(ADS)

NLTE determination of the calcium abundance and 3D corrections in extremely metal-poor stars


Stellar Parameters

Teff : 4750 log g : 1.4 vturb : 1.8

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
CaN/A-2.480.58...-2.460.603.88Ca
FeN/A-3.06......-3.06...4.44Fe

Position

Right Ascension : 19 58 49.70 Declination : -18 12 11.0 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 VLT 45000 150 N/A N/A

I.U.Roederer et al.,AJ, 147, 136, 2014(ADS)

A SEARCH FOR STARS OF VERY LOW METAL ABUNDANCE. VI. DETAILED ABUNDANCES OF 313 METAL-POOR STARS


Stellar Parameters

Teff : 4660+-34 log g : 1.05+-0.14 vturb : 1.6+-0.06

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 I1......0.70-2.560.640.70Li I
CH1...0.00+-0.255.28-3.150.05+-0.255.28CH
CN1...<0.52<5.20<-2.63<0.57<5.20CN
O I3...<1.01<6.50<-2.19<1.01<6.50O I
Mg I6...0.49+-0.154.89-2.710.49+-0.154.89Mg I
Al I1...-0.68+-0.302.57-3.88-0.68+-0.302.57Al I
Ca I10...0.47+-0.173.61-2.730.47+-0.173.61Ca I
Sc II6...-0.11+-0.15-0.11-3.26-0.06+-0.15-0.11Sc II
Ti I18...0.13+-0.151.87-3.080.12+-0.151.87Ti I
Ti II26...0.14+-0.151.94-3.010.19+-0.151.94Ti II
V II2...0.01+-0.240.79-3.140.06+-0.240.79V II
Cr I10...-0.25+-0.152.19-3.45-0.25+-0.152.19Cr I
Cr II2...0.17+-0.162.66-2.980.22+-0.162.66Cr II
Mn I6...-0.36+-0.161.87-3.56-0.36+-0.161.87Mn I
Fe I107-3.20+-0.15...4.30-3.20+-0.15...4.30Fe I
Fe II12-3.15+-0.16...4.35-3.15+-0.16...4.35Fe II
Co I3...-0.04+-0.201.74-3.25-0.05+-0.201.74Co I
Ni I6...0.09+-0.193.11-3.110.09+-0.193.11Ni I
Zn I2...0.35+-0.151.71-2.850.35+-0.151.71Zn I
Rb I1...<1.91<1.23<-1.13<2.07<1.23Rb I
Sr II2...-1.00+-0.24-1.28-4.15-0.95+-0.24-1.28Sr II
Y II1...-1.19+-0.18-2.13-4.34-1.14+-0.18-2.13Y II
Zr II2...-0.62+-0.20-1.19-3.77-0.57+-0.20-1.19Zr II
Mo I1...<0.38<-0.94<-2.82<0.38<-0.94Mo I
Tc I1......<-0.61<-0.61<2.59<-0.61Tc I
Ba II4...-0.87+-0.15-1.84-4.02-0.82+-0.15-1.84Ba II
La II1...-0.63+-0.21-2.68-3.78-0.58+-0.21-2.68La II
Ce II5...<-0.55<-2.12<-3.70<-0.50<-2.12Ce II
Pr II1...<0.25<-2.18<-2.90<0.30<-2.18Pr II
Nd II1...-0.39+-0.19-2.12-3.54-0.34+-0.19-2.12Nd II
Sm II2...<-0.01<-2.20<-3.16<0.04<-2.20Sm II
Eu II2...-0.46+-0.18-3.09-3.61-0.41+-0.18-3.09Eu II
Gd II2...<0.39<-1.69<-2.76<0.44<-1.69Gd II
Tb II3...<0.65<-2.20<-2.52<0.68<-2.20Tb II
Dy II1...<0.20<-1.85<-2.95<0.25<-1.85Dy II
Er II1...<0.15<-2.08<-3.00<0.20<-2.08Er II
Yb II1...-0.35+-0.37-2.58-3.50-0.30+-0.37-2.58Yb II
Hf II1...<0.93<-1.37<-2.08<1.12<-1.37Hf II
Ir I1...<1.21<-0.61<-1.99<1.21<-0.61Ir I
Pb I1...<1.17<0.01<-2.03<1.17<0.01Pb I

Binary Parameters

Binarity Negative
Vrad -126.1

Position

Right Ascension : 19 58 49.70 Declination : -18 12 11.0 Galactic Longitude (l) : N/A Galactic Latitude (b) : N/A

Observing Log

Date of Observation JD Facility Resolution S/N Exposure Time Vrad
2009-05-07-10:34 2454958.942 MCDONALD 33000 55-285 3900 -125.9
2009-05-08-10:42 2454959.948 MCDONALD 33000 55-285 3900 -126.2