G18-40

taken from 3 paper(s):

/A.M.Boesgaard et al.(2005)/ /A.Stephens and A. M. Boesgaard(2002)/ /K.A.Venn et al.(2004)/


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

Lithium and Lithium Depletion in Halo Stars on Extreme Orbits


Stellar Parameters

Teff : 5681+-67 log g : 4.18+-0.34 vturb : 1.27+-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
Li IN/A......2.09+-0.05-1.17+-0.050.72+-0.052.09+-0.05Li I
FeN/A-1.91+-0.05......-1.89+-0.05...5.61+-0.05Fe

Position

Right Ascension : 22 19 53.62 Declination : +05 25 47.3 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 48000 140 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 : 5681+-67 log g : 4.18+-0.34 vturb : 1.27+-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
Na IN/A-2.23+-0.15-0.30+-0.16...-2.14+-0.15-0.22+-0.164.10+-0.15Na I
Mg IN/A-1.63+-0.05+0.30+-0.08...-1.65+-0.050.27+-0.085.95+-0.05Mg I
SiN/A...+0.22+-0.12...-1.67+-0.120.25+-0.125.84+-0.12Si
Si I3-1.71+-0.11......-1.67+-0.110.25+-0.115.84+-0.11Si I
Ca IN/A-1.66+-0.10+0.27+-0.11...-1.64+-0.100.28+-0.114.70+-0.10Ca I
TiN/A...+0.24+-0.07...-1.65+-0.070.27+-0.073.30+-0.07Ti
Ti I7-1.77+-0.07......-1.73+-0.070.19+-0.073.22+-0.07Ti I
Ti II7-1.65+-0.05......-1.61+-0.050.31+-0.053.34+-0.05Ti II
CrN/A...-0.04+-0.10...-1.94+-0.10-0.02+-0.103.70+-0.10Cr
Cr I13-2.00+-0.09......-1.97+-0.09-0.05+-0.093.67+-0.09Cr I
Cr II5-1.87+-0.17......-1.84+-0.170.08+-0.173.80+-0.17Cr II
FeN/A-1.93+-0.06......-1.92+-0.06...5.58+-0.06Fe
Fe I56-1.90+-0.07......-1.89+-0.07...5.61+-0.07Fe I
Fe II9-2.00+-0.10......-1.99+-0.10...5.51+-0.10Fe II
Ni IN/A-2.03+-0.11-0.10+-0.13...-2.00+-0.11-0.08+-0.134.22+-0.11Ni I
Y IIN/A-2.20+-0.15-0.27+-0.16...-2.17+-0.15-0.25+-0.160.04+-0.15Y II
Ba IIN/A-1.97+-0.12-0.04+-0.13...-2.02+-0.12-0.10+-0.130.16+-0.12Ba II

Binary Parameters

Vrad -191.5+-0.6

Position

Right Ascension : 22 19 53.62 Declination : +05 25 47.3 Galactic Longitude (l) : N/A Galactic Latitude (b) : N/A

Observing Log

Date of Observation JD Facility Resolution S/N Exposure Time Vrad
2450987.553 KECKHIRES 48000 140 2700 -191.5+-0.6

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
NaN/A...-0.3...-2.14-0.214.10Na
MgN/A...0.3...-1.650.285.95Mg
CaN/A...0.27...-1.640.294.70Ca
TiN/A...0.24...-1.620.313.33Ti
FeN/A-1.93......-1.93...5.57Fe
NiN/A...-0.1...-2.00-0.074.22Ni
YN/A...-0.36...-2.26-0.33-0.05Y
BaN/A...-0.04...-2.02-0.090.16Ba

Position

Right Ascension : 22 19 53.62 Declination : +05 25 47.3 Galactic Longitude (l) : N/A Galactic Latitude (b) : N/A

Observing Log