HD021581
Original Names

taken from 11 paper(s):

/R.G.Gratton et al.(2000)/ /J.Melendez and B. Barbuy(2001)/ /J.P.Fulbright and J. A. Johnson(2003)/ /J.P.Fulbright(2000)/ /J.Simmerer et al.(2004)/ /B.W.Carney et al.(2003)/ /Y.Saito et al.(2009)/ /I.U.Roederer et al.(2010)/ /H.Jonsson et al.(2011)/ /I.U.Roederer et al.(2014)/ /K.A.Venn et al.(2004)/

R.G.Gratton et al.,AAP, 354, 169, 2000 (A0049,ADS)

Mixing along the red giant branch in metal-poor field stars


Stellar Parameters

Teff : 4978 log g : 2.29 vturb : 1.30

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......0.95......Li I
CN/A...-0.25.........C
CNN/A...-0.25.........CN
ON/A...0.26.........O
[O I]N/A...0.39.........[O I]
NaN/A...-0.11.........Na
Fe IN/A-1.56............Fe I
Fe IIN/A-1.62............Fe II

Isotopic Ratio

12C/13C >30

Observing Log

Date of Observation JD Facility Resolution S/N Exposure Time Vrad
1995-05 N/A CESESO 50000 80-150 N/A N/A
1995-11 N/A CESESO 50000 80-150 N/A N/A
1995-11 N/A MCDONALD 60000 70-100 N/A N/A
Galactic Longitude (l) : 184.32 Galactic Latitude (b) : -43.74 Declination : -002503 Right Ascension : 032854.5

J.Melendez et al.,ApJ, 556, 858, 2001 (A0066,ADS)

Oxygen Abundances in Metal-poor Stars (-2.2 < [Fe/H] < -1.2) from Infrared OH Lines


Stellar Parameters

Teff : 4932 log g : 2.20 vturb : 1.4

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...-0.40.........C
ON/A-1.200.48......O
FeN/A-1.68............Fe

Observing Log

Date of Observation JD Facility Resolution S/N Exposure Time Vrad
1999-09-27 N/A PHOENIXKPNO 60000 100 4x1800 N/A
Galactic Longitude (l) : N/A Galactic Latitude (b) : N/A Declination : N/A Right Ascension : N/A

J.P.Fulbright et al.,ApJ, 595, 1154, 2003 (A0074,ADS)

Oxygen Abundances in Metal-poor Stars


Stellar Parameters

Teff : 4900 log g : 2.24 vturb : 1.45

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...0.61+-0.167.66+-0.16...O I
FeN/A-1.64............Fe
Fe IN/A......5.89+-0.06......Fe I
Fe IIN/A......5.88+-0.07......Fe II

Observing Log

Date of Observation JD Facility Resolution S/N Exposure Time Vrad
2001-09-29 N/A GECKOCFHT 130000 190 900 N/A
Galactic Longitude (l) : N/A Galactic Latitude (b) : N/A Declination : N/A Right Ascension : N/A

J.P.Fulbright et al.,AJ, 120, 1841, 2000 (A0126,ADS)

ABUNDANCES AND KINEMATICS OF FIELD HALO AND DISK STARS. I. OBSERVATIONAL DATA AND ABUNDANCE ANALYSIS


Stellar Parameters

Teff : 4825 log g : 2 vturb : 1.45

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......0.93......Li I
Na IN/A...-0.08.........Na I
Mg IN/A...0.61.........Mg I
Al IN/A...0.21.........Al I
Si IN/A...0.48.........Si I
Ca IN/A...0.41.........Ca I
TiN/A...0.32.........Ti
V IN/A...-0.05.........V I
Cr IN/A...-0.08.........Cr I
FeN/A-1.74............Fe
Ni IN/A...0.02.........Ni I
Y IIN/A...-0.08.........Y II
Zr IIN/A...0.27.........Zr II
Ba IIN/A...0.03.........Ba II
Eu IIN/A...0.51.........Eu II

Observing Log

Date of Observation JD Facility Resolution S/N Exposure Time Vrad
1998-10-30 N/A LICKHAMILTON 50000 90 1200 N/A
Galactic Longitude (l) : N/A Galactic Latitude (b) : N/A Declination : N/A Right Ascension : N/A

J.Simmerer et al.,ApJ, 617, 1091, 2004 (A0131,ADS)

The Rise of the s-Process in the Galaxy


Stellar Parameters

Teff : 4870 log g : 2.27 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
CN/A...-0.15.........C
Fe I10-1.71............Fe I
Fe II7-1.68............Fe II
La IIN/A......-0.42+-0.07......La II
Eu IIN/A......-0.81+-0.03......Eu II

Observing Log

Date of Observation JD Facility Resolution S/N Exposure Time Vrad
N/A MCDONALD 60000 100 N/A N/A
Galactic Longitude (l) : N/A Galactic Latitude (b) : N/A Declination : N/A Right Ascension : N/A

B.W.Carney et al.,AJ, 125, 293, 2003 (A0138,ADS)

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


Stellar Parameters

Teff : 4860 log g : 2.3

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
FeN/A-1.65............Fe

Binary Parameters

Vrad 153.23

Observing Log

Date of Observation JD Facility Resolution S/N Exposure Time Vrad
N/A 2445951.88220 WYETH N/A N/A N/A 153.36+-0.44
N/A 2446008.78363 WYETH N/A N/A N/A 154.32+-0.52
N/A 2446306.83512 WYETH N/A N/A N/A 154.20+-0.58
N/A 2446695.90478 WYETH N/A N/A N/A 153.91+-1.01
N/A 2447054.90212 WYETH N/A N/A N/A 152.47+-0.62
N/A 2447411.88173 WYETH N/A N/A N/A 152.79+-0.73
N/A 2447780.83274 WYETH N/A N/A N/A 152.39+-0.47
N/A 2448145.86194 WYETH N/A N/A N/A 153.42+-0.63
N/A 2448587.67691 WYETH N/A N/A N/A 152.02+-0.59
N/A 2449018.47147 WYETH N/A N/A N/A 153.46+-0.65
N/A 2450660.83758 WYETH N/A N/A N/A 153.24+-0.52
Galactic Longitude (l) : N/A Galactic Latitude (b) : N/A Declination : -002502 Right Ascension : 032854.4

Y.Saito et al.,PASJ, 61, 549, 2009 (A0208,ADS)

Chemical Evolution of Zinc in the Galaxy


Stellar Parameters

Teff : 5010 log g : 2.60 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
Fe IN/A-1.47............Fe I
Fe IIN/A-1.47............Fe II
Zn IN/A...-0.06+-0.1.........Zn I

Observing Log

Date of Observation JD Facility Resolution S/N Exposure Time Vrad
N/A N/A OAO 50000 220 N/A N/A
Galactic Longitude (l) : N/A Galactic Latitude (b) : N/A Declination : N/A Right Ascension : N/A

I.U.Roederer et al.,ApJ, 724, 975, 2010 (A0243,ADS)

THE UBIQUITY OF THE RAPID NEUTRON-CAPTURE PROCESS


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-1.71............Fe
Zn IN/A......2.99......Zn I
Y IIN/A......0.44......Y II
Pb IN/A......<+0.50......Pb I

Observing Log

Date of Observation JD Facility Resolution S/N Exposure Time Vrad
N/A MCDONALD 60000 100 N/A N/A
Galactic Longitude (l) : N/A Galactic Latitude (b) : N/A Declination : N/A Right Ascension : N/A

H.Jonsson et al.,AAP, 530, A144, 2011 (A0256,ADS)

Sulphur abundances in halo giants from the [SI] line at 1082 nm and the SI triplet around 1045 nm


Stellar Parameters

Teff : 4900+-103 log g : 2.24+-0.2 vturb : 1.45+-0.5

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
SiN/A......6.06......Si
S IN/A......6.03+-0.05......S I
[S I]N/A......6.02......[S I]
FeN/A-1.64+-0.09............Fe

Observing Log

Date of Observation JD Facility Resolution S/N Exposure Time Vrad
2008-01-16 N/A VLTCRIRES 80000 310-330 1920 N/A
Galactic Longitude (l) : N/A Galactic Latitude (b) : N/A Declination : -002503.117 Right Ascension : 032854.4853

I.U.Roederer et al.,AJ, 147, 136, 2014 (A0309,ADS)

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


Stellar Parameters

Teff : 4940+-40 log g : 2.1+-0.2 vturb : 1.5+-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......1.07......Li I
CH1...0.01+-0.256.62...CH
NH1...-0.46+-0.365.55...NH
O I4...0.42+-0.157.40...O I
Na I2...-0.10+-0.174.43...Na I
Mg I4...0.39+-0.186.29...Mg I
Si I3...0.43+-0.216.24...Si I
K I1...0.31+-0.243.64...K I
Ca I10...0.47+-0.245.11...Ca I
Sc II4...0.11+-0.151.44...Sc II
Ti I15...0.13+-0.153.38...Ti I
Ti II17...0.44+-0.153.57...Ti II
V I1...-0.23+-0.242.00...V I
V II2...0.30+-0.252.42...V II
Cr I8...-0.15+-0.143.79...Cr I
Cr II3...0.28+-0.154.11...Cr II
Mn I3...-0.47+-0.143.26...Mn I
Fe I88-1.70+-0.15...5.80...Fe I
Fe II9-1.82+-0.15...5.68...Fe II
Co I1...-0.31+-0.302.98...Co I
Ni I9...-0.02+-0.174.50...Ni I
Cu I1...-0.58+-0.141.91...Cu I
Zn I2...0.14+-0.143.00...Zn I
Rb I1...<0.89<1.71...Rb I
Sr II1...0.26+-0.081.31...Sr II
Y II5...-0.19+-0.150.20...Y II
Zr II3...0.35+-0.161.12...Zr II
Nb II1...<1.02<0.66...Nb II
Mo I1...0.17+-0.170.35...Mo I
Sn I1...<0.88<1.25...Sn I
Ba II3...0.20+-0.150.56...Ba II
La II4...0.09+-0.15-0.63...La II
Ce II5...0.10+-0.16-0.14...Ce II
Pr II2...0.37+-0.16-0.72...Pr II
Nd II5...0.27+-0.15-0.13...Nd II
Sm II1...0.31+-0.15-0.55...Sm II
Eu II2...0.33+-0.17-0.97...Eu II
Gd II2...0.48+-0.16-0.27...Gd II
Dy II2...0.34+-0.15-0.38...Dy II
Er II3...0.34+-0.17-0.55...Er II
Tm II1...0.38+-0.18-1.34...Tm II
Yb II1...0.21+-0.23-0.69...Yb II
Hf II2...0.59+-0.18-0.38...Hf II
Pb I1...<0.45<0.79...Pb I

Binary Parameters

Binarity Negative
Vrad 153.7

Observing Log

Date of Observation JD Facility Resolution S/N Exposure Time Vrad
2011-02-25-00:25 2455617.516 MIKELCO 41000 90-305 200 153.7
Galactic Longitude (l) : N/A Galactic Latitude (b) : N/A Declination : N/A Right Ascension : N/A

K.A.Venn et al.,AJ, 128, 1177, 2004 (C0011,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
NaN/A...-0.08.........Na
MgN/A...0.61.........Mg
CaN/A...0.41.........Ca
TiN/A...0.32.........Ti
FeN/A-1.74............Fe
NiN/A...0.02.........Ni
YN/A...-0.08.........Y
BaN/A...0.03.........Ba
EuN/A...0.51.........Eu

Observing Log

Galactic Longitude (l) : N/A Galactic Latitude (b) : N/A Declination : -002503 Right Ascension : 032854.5