BD+04_2621: found in 3 paper(s).

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/J.A.Johnson(2002)/ /J.A.Johnson and M. Bolte(2002)/ /J.A.Johnson and M. Bolte(2001)/

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A0031

Title ABUNDANCES OF 30 ELEMENTS IN 23 METAL-POOR STARS
ADS J.A.Johnson et al.,ApJS, 139, 219, 2002
Authors J. A. Carnegie Institute of Washington, CIW. Johnson

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Basic Informations

Observation Date JD Facility Resolution S/N Exposure Time Vrad
1997-05-12 N/A KECKHIRES 45000 350 611 N/A
1997-06-20 N/A KECKHIRES 45000 N/A 2400 N/A
1997-05-12 N/A KECKHIRES 45000 350 611 N/A
1997-06-20 N/A KECKHIRES 45000 N/A 2400 N/A
Galactic Longitude (l) N/A
Galactic Latitude (b) N/A
Declination N/A
Right Ascension N/A

Photometric data

V 9.91
V-R 0.764
EB-V 0.00

Atmospheric data

Teff 4650
log g 1.20
vturb 1.80

Chemical Abundances

Element Nline [X/H] [X/Fe] log-e
Mg I...-2.09+-0.180.41+-0.185.49+-0.18
Al I...-2.89+-0.26-0.39+-0.263.58+-0.26
Si I...-1.86+-0.270.64+-0.275.69+-0.27
Ca I...-2.18+-0.090.32+-0.094.18+-0.09
Sc II...-2.46+-0.140.04+-0.140.71+-0.14
Ti I...-2.38+-0.140.12+-0.142.64+-0.14
Ti II...-2.19+-0.130.31+-0.132.83+-0.13
V I...-2.61+-0.15-0.11+-0.151.39+-0.15
V II...-2.32+-0.100.18+-0.101.68+-0.10
Cr I...-2.66+-0.13-0.16+-0.133.01+-0.13
Cr II...-2.22+-0.070.28+-0.073.45+-0.07
Mn I...-2.79+-0.10-0.29+-0.102.60+-0.10
Mn II...-2.50+-0.210.00+-0.212.89+-0.21
Fe I...-2.50+-0.17...5.00+-0.17
Fe II...-2.51+-0.09...4.99+-0.09
Co I...-2.39+-0.170.11+-0.172.53+-0.17
Ni I...-2.47+-0.220.03+-0.223.78+-0.22
Y II...-2.93+-0.14-0.43+-0.14-0.69+-0.14
Zr II...-2.57+-0.08-0.07+-0.080.03+-0.08
Ba II...-3.34+-0.23-0.84+-0.23-1.21+-0.23
La II...-3.44+-0.13-0.94+-0.13-2.27+-0.13
Pr II...<-2.01<0.49<-1.30
Nd II...-2.95+-0.18-0.45+-0.18-1.45+-0.18
Eu II...-3.12+-0.23-0.62+-0.23-2.61+-0.23
Tb II...<-1.76<0.74<-1.86
Ho II...<-2.27<0.23<-2.01
Er II...-3.02+-0.14-0.52+-0.14-2.09+-0.14
Tm II...<-1.88<0.62<-1.88
Yb II...-3.57+-0.22-1.07+-0.22-2.49+-0.22
Os I...<-2.01<0.49<-0.56
    : Data presented in the paper
    : Data converted with the solar abundance from Grevesse et al. (1996)

A0185

Title The r-Process in the Early Galaxy
ADS J.A.Johnson et al.,ApJ, 579, 616, 2002
Authors J. A. Johnson, M. Bolte

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Basic Informations

Observation Date JD Facility Resolution S/N Exposure Time Vrad
1997-05-12 N/A KECKHIRES 45000 350 611 N/A
1997-06-20 N/A KECKHIRES 45000 N/A 2400 N/A

Chemical Abundances

Element Nline [X/H] [X/Fe] log-e
Fe...-2.51...4.99
Sr II...-2.79+-0.30-0.28+-0.300.18+-0.30
Y II...-2.93+-0.14-0.42+-0.14-0.69+-0.14
Zr II...-2.57+-0.08-0.06+-0.080.03+-0.08
Pd I...<-2.10<0.41<-0.41
    : Data presented in the paper
    : Data converted with the solar abundance from Grevesse et al. (1996)

A0186

Title Th Ages for Metal-poor Stars
ADS J.A.Johnson et al.,ApJ, 554, 888, 2001
Authors J. A. Johnson, M. Bolte

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Atmospheric data

Teff 4650
log g 1.20
vturb 1.80

Chemical Abundances

Element Nline [X/H] [X/Fe] log-e
Fe I...-2.52+-0.17...4.98+-0.17
Fe II...-2.53+-0.09...4.97+-0.09
Ba II...-3.34+-0.23-0.82+-0.23-1.21+-0.23
La II...-3.48+-0.13-0.96+-0.13-2.31+-0.13
Pr II...<-2.01<0.51<-1.30
Nd II...-2.94+-0.18-0.42+-0.18-1.44+-0.18
Eu II...-3.11+-0.23-0.59+-0.23-2.60+-0.23
Tb II...<-2.19<0.33<-2.29
Ho II...<-2.51<0.01<-2.25
Er II...-3.01+-0.14-0.49+-0.14-2.08+-0.14
Tm II...<-2.01<0.51<-2.01
Yb II...-3.57+-0.22-1.05+-0.22-2.49+-0.22
Os I...<-2.01<0.51<-0.56
Th II...<-3.12<-0.60<-3.12
    : Data presented in the paper
    : Data converted with the solar abundance from Grevesse et al. (1996)

Isotope ratio

12C/13C 8