BPS BS16934-002: found in 2 paper(s).

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/W.Aoki et al.(2005)/ /W.Aoki et al.(2007)/

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A0057

Title Spectroscopic Studies of Very Metal-poor Stars with the Subaru High Dispersion Spectrograph. III. Light Neutron-Capture Elements
ADS W.Aoki et al.,ApJ, 632, 611, 2005
Authors W. Aoki, S. Honda, T. C. Beers, T. Kajino, H. Ando, J. E. Norris, S. G. Ryan, H. Izumiura, K. Sadakane, M. Takada-Hidai

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Basic Informations

Observation Date JD Facility Resolution S/N Exposure Time Vrad
2001-04-16 N/A SUBARUHDS 50000 63 20min +82.81+-0.26
2001-07-31 N/A SUBARUHDS 50000 84 30min +82.53+-0.26
2002-02-02 N/A SUBARUHDS 50000 82 30min +82.33+-0.21
Galactic Longitude (l) N/A
Galactic Latitude (b) N/A
Declination +161539
Right Ascension 132946.4

Binarity

Vrad +82.81+-0.26

Photometric data

V 12.806
B 13.733
H 10.348
J 11.467
K 10.233
EB-V 0.00

Atmospheric data

Teff 4500
log g 1.0
vturb 2.0

Chemical Abundances

Element Nline [X/H] [X/Fe] log-e
CH...-3.09-0.35.3
Mg I...-1.54+-0.131.25+-0.136.04+-0.13
Al I...-2.76+-0.190.03+-0.193.73+-0.19
Si I...-2.55+-0.140.24+-0.145.01+-0.14
Ca I...-2.42+-0.130.37+-0.133.93+-0.13
Sc II...-2.09+-0.240.7+-0.241.01+-0.24
Ti I...-2.31+-0.130.48+-0.132.63+-0.13
Ti II...-2.09+-0.250.7+-0.252.85+-0.25
Cr I...-2.97+-0.11-0.18+-0.112.72+-0.11
Mn I...-3.52+-0.12-0.73+-0.122.01+-0.12
Fe I...-2.79+-0.21...4.71+-0.21
Fe II...-2.81+-0.19...4.69+-0.19
Co I...-2.50+-0.120.29+-0.122.41+-0.12
Ni I...-2.88+-0.12-0.09+-0.123.37+-0.12
Zn I...-2.75+-0.220.04+-0.221.92+-0.22
Sr II...-4.11+-0.25-1.32+-0.25-1.19+-0.25
Y II...-4.16+-0.25-1.37+-0.25-1.93+-0.25
Zr II...<-2.82<-0.03<-0.21
Ba II...-4.59+-0.22-1.8+-0.22-2.37+-0.22
    : Data presented in the paper
    : Data converted with the solar abundance from Grevesse et al. (1996)


A0117

Title Spectroscopic Studies of Extremely Metal-poor Stars with the Subaru High-Dispersion Spectrograph. IV. The alpha-Element–Enhanced Metal-poor Star BS 16934-002
ADS W.Aoki et al.,ApJ, 660, 747, 2007
Authors W. Aoki, S. Honda, T. C. Beers, M. Takada-Hidai, N. Iwamoto, N. Tominaga, H. Umeda, K. Nomoto, J. E. Norris, S. G. Ryan

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Basic Informations

Observation Date JD Facility Resolution S/N Exposure Time Vrad
2004-03-31 2453158 SUBARUHDS 60000 100 7200 82.5+-0.3
Galactic Longitude (l) N/A
Galactic Latitude (b) N/A
Declination N/A
Right Ascension N/A

Atmospheric data

Teff 4500
log g 1.0
vturb 2.1

Chemical Abundances

Element Nline [X/H] [X/Fe] log-e
CH...-3.05+-0.17-0.27+-0.175.35+-0.17
CN...-2.13+-0.29+0.65+-0.295.65+-0.29
O I...-1.64+-0.19+1.14+-0.197.03+-0.19
Na I...-1.97+-0.13+0.81+-0.134.20+-0.13
Mg I...-1.55+-0.13+1.23+-0.135.98+-0.13
Al I...-2.61+-0.19+0.17+-0.193.76+-0.19
Si I...-2.34+-0.14+0.44+-0.145.17+-0.14
Ca I...-2.43+-0.13+0.35+-0.133.89+-0.13
Sc II...-2.19+-0.24+0.59+-0.240.87+-0.24
Ti I...-2.30+-0.13+0.48+-0.132.61+-0.13
Ti II...-2.16+-0.25+0.62+-0.252.74+-0.25
Cr I...-2.97+-0.11-0.19+-0.112.67+-0.11
Mn I...-3.39+-0.12-0.61+-0.122.01+-0.12
Fe I...-2.78+-0.20...4.68+-0.20
Fe II...-2.79+-0.19...4.67+-0.19
Co I...-2.59+-0.12+0.19+-0.122.34+-0.12
Ni I...-2.86+-0.12-0.08+-0.123.38+-0.12
Zn I...-2.67+-0.22+0.11+-0.221.94+-0.22
Sr II...-4.14+-0.25-1.36+-0.25-1.22+-0.25
Ba II...-4.47+-0.24-1.69+-0.24-2.29+-0.24
    : Data presented in the paper
    : Data converted with the solar abundance from Grevesse et al. (1996)