HD2796

taken from 22 paper(s):

/D.L.Burris et al.(2000)/ /R.Cayrel et al.(2004)/ /M.Spite et al.(2005)/ /A.McWilliam et al.(1995)/ /A.McWilliam et al.(1995)/ /J.Melendez and B. Barbuy(2002)/ /G.Israelian and R. Rebolo(2001)/ /T.V.Mishenina et al.(2002)/ /T.V.Mishenina and V. V. Kovtyukh(2001)/ /J.P.Fulbright and J. A. Johnson(2003)/ /M.Spite et al.(2006)/ /S.M.Andrievsky et al.(2007)/ /G.Bihain et al.(2004)/ /S.M.Andrievsky et al.(2008)/ /S.M.Andrievsky et al.(2009)/ /S.M.Andrievsky et al.(2010)/ /M.Spite et al.(2011)/ /P.Francois et al.(2007)/ /M.Spite et al.(2012)/ /H.Li et al.(2018)/ /F.Spite et al.(2018)/ /K.A.Venn et al.(2004)/

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 : 4900 log g : 1.60 vturb : 1.60

Position

Right Ascension : 00 31 16.90 Declination : -16 47 41.0 Galactic Longitude (l) : N/A Galactic Latitude (b) : N/A

Observing Log

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 : 4950 log g : 1.5 vturb : 2.1

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-2.97-0.515.55-2.88-0.435.55CH
[O I]N/A-1.970.506.80-1.890.566.80[O I]
Na I2-2.130.344.20-2.040.414.20Na I
Mg I7-2.22+-0.140.25+-0.145.36+-0.14-2.24+-0.140.21+-0.145.36+-0.14Mg I
Al I2-3.12-0.663.35-3.10-0.653.35Al I
Si I1-2.070.405.48-2.030.425.48Si I
K I2-1.870.603.25-1.780.673.25K I
Ca I16-2.14+-0.100.32+-0.104.22+-0.10-2.12+-0.100.33+-0.104.22+-0.10Ca I
Sc II7-2.38+-0.110.09+-0.110.79+-0.11-2.36+-0.110.09+-0.110.79+-0.11Sc II
Ti I12-2.27+-0.060.20+-0.062.75+-0.06-2.20+-0.060.25+-0.062.75+-0.06Ti I
Ti II28-2.23+-0.090.24+-0.092.79+-0.09-2.16+-0.090.29+-0.092.79+-0.09Ti II
Cr I7-2.72+-0.13-0.26+-0.132.95+-0.13-2.69+-0.13-0.24+-0.132.95+-0.13Cr I
Mn I3-2.85+-0.01-0.39+-0.012.54+-0.01-2.89+-0.01-0.44+-0.012.54+-0.01Mn I
Fe I114-2.45+-0.130.01+-0.135.05+-0.13-2.45+-0.130.01+-0.135.05+-0.13Fe I
Fe II17-2.48+-0.13-0.02+-0.135.02+-0.13-2.48+-0.13-0.02+-0.135.02+-0.13Fe II
Co I2-2.330.142.59-2.400.052.59Co I
Ni I3-2.55+-0.14-0.09+-0.143.70+-0.14-2.52+-0.14-0.07+-0.143.70+-0.14Ni I
Zn I1-2.230.242.37-2.190.262.37Zn I

Binary Parameters

Binarity Unknown

Position

Right Ascension : 00 31 16.90 Declination : -16 47 41.0 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 250 1800 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 : 4950 log g : 1.5 vturb : 2.1

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......<-0.30<-3.56<-1.09<-0.30Li I
CN/A-2.97+-0.06......-2.88+-0.06-0.41+-0.065.55+-0.06C
NN/A-1.62......-1.530.946.30N
[O I]N/A-1.97......-1.830.646.86[O I]
FeN/A-2.47......-2.47...5.03Fe

Position

Right Ascension : 00 31 16.90 Declination : -16 47 41.0 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

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

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


Position

Right Ascension : 00 31 16.90 Declination : -16 47 41.0 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.


Stellar Parameters

Teff : 4850 log g : 1.10+-0.24 vturb : 2.54+-0.09

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...-0.55...-2.93-0.595.50C
NaN/A...0.24...-2.180.164.06Na
MgN/A...0.51...-2.020.325.58Mg
CaN/A...0.42...-2.070.274.27Ca
Fe IN/A-2.51......-2.34...5.16Fe I
Fe IIN/A-2.52......-2.35...5.15Fe II
NiN/A...-0.11...-2.59-0.253.63Ni
SrN/A...0.10...-2.38-0.040.49Sr
BaN/A...-0.20...-2.76-0.42-0.58Ba
EuN/A...0.12...-2.40-0.06-1.88Eu

Position

Right Ascension : 00 31 16.90 Declination : -16 47 41.0 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 : 4860 log g : 1.7 vturb : 1.9

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...-1.00...-3.14-0.885.29C
OHN/A...+0.57...-1.510.757.18OH
Fe IIN/A-2.26......-2.26...5.24Fe II

Position

Right Ascension : 00 31 16.90 Declination : -16 47 41.0 Galactic Longitude (l) : N/A Galactic Latitude (b) : N/A

Observing Log

Date of Observation JD Facility Resolution S/N Exposure Time Vrad
2001-10-01 N/A FEROSESO 48000 240 2400 N/A
2001-11-20 N/A KECKNIRSPEC 37000 150 12x300 N/A

G.Israelian et al.,ApJ, 557, L43, 2001(ADS)

Sulphur Abundance in Very Metal-poor Stars


Stellar Parameters

Teff : 4867+-58 log g : 1.80+-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
SN/A-1.490.81...-1.400.905.72S
FeN/A-2.3......-2.30...5.20Fe

Position

Right Ascension : 00 31 16.90 Declination : -16 47 41.0 Galactic Longitude (l) : N/A Galactic Latitude (b) : N/A

Observing Log

Date of Observation JD Facility Resolution S/N Exposure Time Vrad
2000-08-17 N/A WHTUES 50000 350 5000 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


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
FeN/A-2.21......-2.21...5.29Fe
Cu IN/A...-0.54+-0.14...-2.73+-0.14-0.52+-0.141.46+-0.14Cu I
Zn IN/A...0.12+-0.12...-2.05+-0.120.16+-0.122.51+-0.12Zn I

Position

Right Ascension : 00 31 16.90 Declination : -16 47 41.0 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 : 4900 log g : 1.6 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
Mg IN/A...0.12...-2.110.105.49Mg I
Si IN/A...0.33...-1.840.375.67Si I
Ca IN/A...0.43...-1.760.454.58Ca I
FeN/A-2.21......-2.21...5.29Fe
Sr IN/A...0.23...-1.880.330.99Sr I
Ba IIN/A...-0.26...-2.52-0.31-0.34Ba II
La IIN/A...0.19...-1.950.26-0.85La II
Ce IIN/A...-0.14...-2.35-0.14-0.77Ce II
Nd IIN/A...0.11...-2.020.19-0.60Nd II
Eu IIN/A...0.31...-1.910.30-1.39Eu II

Position

Right Ascension : 00 31 16.90 Declination : -16 47 41.0 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

J.P.Fulbright et al.,ApJ, 595, 1154, 2003(ADS)

Oxygen Abundances in Metal-poor Stars


Stellar Parameters

Teff : 4950 log g : 2.13 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
O IN/A...0.74+-0.147.33+-0.19-1.36+-0.190.72+-0.147.33+-0.19O I
FeN/A-2.1......-2.08...5.42Fe
Fe IN/A......5.22+-0.1-2.28+-0.1...5.22+-0.1Fe I
Fe IIN/A......5.42+-0.05-2.08+-0.05...5.42+-0.05Fe II

Position

Right Ascension : 00 31 16.90 Declination : -16 47 41.0 Galactic Longitude (l) : N/A Galactic Latitude (b) : N/A

Observing Log

Date of Observation JD Facility Resolution S/N Exposure Time Vrad
2000-08-12 N/A LICKHAMILTON 60000 120 900 N/A
2001-09-29 N/A GECKOCFHT 130000 250 900 N/A
2002-01-08 N/A MAYALLKPNO 40000 200 900 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 : 4950 log g : 1.5 vturb : 2.1

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-2.87+-0.06......-2.78+-0.06-0.31+-0.065.65+-0.06C
NN/A-1.62+-0.08......-1.53+-0.080.94+-0.086.30+-0.08N
FeN/A-2.47......-2.47...5.03Fe

Isotopic Ratio

12C/13C 4+-2

Position

Right Ascension : 00 31 16.90 Declination : -16 47 41.0 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 : 4950 log g : 1.5 vturb : 2.1

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-2.60-0.133.65-2.59-0.123.65Na
FeN/A-2.47......-2.47...5.03Fe

Position

Right Ascension : 00 31 16.90 Declination : -16 47 41.0 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

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

Cu and Zn in the early Galaxy


Stellar Parameters

Teff : 4860+-46 log g : 1.80+-0.2 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-2.18......-2.01...5.49Fe
Zn IN/A-2.03+-0.17......-1.99+-0.170.02+-0.172.57+-0.17Zn I

Position

Right Ascension : 00 31 16.90 Declination : -16 47 41.0 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

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 : 4950 log g : 1.5 vturb : 2.1

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-2.390.084.08-2.370.104.08Al
FeN/A-2.47......-2.47...5.03Fe

Position

Right Ascension : 00 31 16.90 Declination : -16 47 41.0 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

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 : 4950 log g : 1.5 vturb : 2.1

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-2.47......-2.47...5.03Fe
Ba3......-0.48-2.66-0.19-0.48Ba

Position

Right Ascension : 00 31 16.90 Declination : -16 47 41.0 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 : 4950 log g : 1.5 vturb : 2.1

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......5.54-2.060.415.54Mg
KN/A......3.25-1.780.693.25K
FeN/A-2.47......-2.47...5.03Fe

Position

Right Ascension : 00 31 16.90 Declination : -16 47 41.0 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

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

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


Stellar Parameters

Teff : 4950 log g : 1.5 vturb : 2.1

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 I3......5.25+-0.10-1.87+-0.100.60+-0.105.25+-0.10S I
FeN/A-2.47......-2.47...5.03Fe

Position

Right Ascension : 00 31 16.90 Declination : -16 47 41.0 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 : 4950 log g : 1.5 vturb : 2.1

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-2.47......-2.47...5.03Fe
Sr3...+0.25...-2.170.300.70Sr
Y10...-0.25...-2.69-0.22-0.48Y
Zr17...+0.08...-2.370.100.21Zr
Ba2...-0.14...-2.66-0.19-0.48Ba
La7...-0.10...-2.50-0.03-1.40La
Ce2...+0.06...-2.410.06-0.83Ce
Pr1...+0.26...-2.220.25-1.50Pr
Nd5...-0.13...-2.52-0.05-1.10Nd
Sm1...+0.06...-2.360.11-1.40Sm
Eu1...+0.11...-2.370.10-1.85Eu
Gd3...-0.05...-2.470.00-1.40Gd
Dy5...+0.01...-2.420.05-1.32Dy
Ho1...+0.01...-2.67-0.20-2.20Ho
Er2...+0.11...-2.350.12-1.43Er
TmN/A...<+1.26...<-1.33<1.14<-1.21Tm
Yb1...-0.13...-2.440.03-1.52Yb

Position

Right Ascension : 00 31 16.90 Declination : -16 47 41.0 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

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 : 4950 log g : 1.5 vturb : 2.1

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-2.030.43...-2.010.464.33Ca
FeN/A-2.47......-2.47...5.03Fe

Position

Right Ascension : 00 31 16.90 Declination : -16 47 41.0 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

H.Li et al.,ApJ, 852, L31, 2018(ADS)

Enormous Li Enhancement Preceding Red Giant Phases in Low-mass Stars in the Milky Way Halo


Stellar Parameters

Teff : 4832+-150 log g : 1.05+-0.3

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
LiN/A......<0.06<-3.20<-0.71<0.06Li
CN/A...-0.54+-0.31...-3.03+-0.31-0.54+-0.315.40+-0.31C
NaN/A...-0.37+-0.13...-2.86+-0.13-0.37+-0.133.38+-0.13Na
MgN/A...0.35+-0.15...-2.14+-0.150.35+-0.155.46+-0.15Mg
FeN/A-2.49+-0.3......-2.49+-0.3...5.01+-0.3Fe
BaN/A...-0.31+-0.18...-2.80+-0.18-0.31+-0.18-0.62+-0.18Ba

Position

Right Ascension : 00 31 16.9149599675 Declination : -16 47 40.792690842 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 SUBARUHDS 60000 50-200 N/A N/A

F.Spite et al.,AAP, 611, A30, 2018(ADS)

Abundance patterns of the light neutron-capture elements in very and extremely metal-poor stars


Stellar Parameters

Teff : 4950+-100 log g : 1.5+-0.2 vturb : 2.1+-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
FeN/A-2.47......-2.47...5.03Fe
SrN/A...0.07+-0.20.50+-0.2-2.37+-0.20.10+-0.20.50+-0.2Sr
YN/A...-0.21+-0.2-0.48+-0.2-2.69+-0.2-0.22+-0.2-0.48+-0.2Y
ZrN/A...0.11+-0.20.21+-0.2-2.37+-0.20.10+-0.20.21+-0.2Zr
MoN/A...0.13+-0.25-0.40+-0.25-2.28+-0.250.19+-0.25-0.40+-0.25Mo
RuN/A...0.34+-0.25-0.35+-0.25-2.10+-0.250.37+-0.25-0.35+-0.25Ru
PdN/A...0.10+-0.25-0.70+-0.25-2.27+-0.250.20+-0.25-0.70+-0.25Pd
BaN/A...-0.19-0.48-2.66-0.19-0.48Ba
EuN/A...0.17-1.77-2.290.18-1.77Eu

Position

Right Ascension : 00 31 16.91 Declination : -16 47 40.79 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 280 N/A N/A

K.A.Venn et al.,AJ, 128, 1177, 2004(ADS)

Stellar Chemical Signatures and Hierarchical Galaxy Formation


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-2.23......-2.23...5.27Fe
EuN/A...-0.06...-2.30-0.07-1.78Eu

Position

Right Ascension : 00 31 16.90 Declination : -16 47 41.0 Galactic Longitude (l) : N/A Galactic Latitude (b) : N/A

Observing Log