BS16920-017

taken from 5 paper(s):

/S.Honda et al.(2004)/ /D.K.Lai et al.(2004)/ /S.Honda et al.(2004)/ /D.K.Lai et al.(2007)/ /S.Honda et al.(2011)/

S.Honda et al.,ApJ, 607, 474, 2004(ADS)

Spectroscopic Studies of Extremely Metal-Poor Stars with the Subaru High Dispersion Spectrograph. II. The r-Process Elements, Including Thorium


Stellar Parameters

Teff : 4760 log g : 1.2 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
CHN/A...<-0.07...<-3.06<0.05<5.37CH
Mg I6...0.21+-0.284.67+-0.28-2.93+-0.280.18+-0.284.67+-0.28Mg I
Al I1...-0.71+-0.192.64+-0.19-3.81+-0.19-0.70+-0.192.64+-0.19Al I
Si I1...-0.01+-0.194.42+-0.19-3.09+-0.190.02+-0.194.42+-0.19Si I
Ca I4...-0.03+-0.183.21+-0.18-3.13+-0.18-0.02+-0.183.21+-0.18Ca I
Sc II2...-0.28+-0.07-0.23+-0.07-3.38+-0.07-0.27+-0.07-0.23+-0.07Sc II
Ti23...0.34+-0.132.24+-0.13-2.71+-0.130.40+-0.132.24+-0.13Ti
V1...0.26+-0.191.14+-0.19-2.79+-0.190.32+-0.191.14+-0.19V
Cr2...-0.02+-0.192.53+-0.19-3.11+-0.190.00+-0.192.53+-0.19Cr
Mn I6...0.23+-0.22.5+-0.2-2.93+-0.20.18+-0.22.5+-0.2Mn I
Fe69-3.12+-0.23...4.39+-0.23-3.11+-0.23...4.39+-0.23Fe
Co I3...0.27+-0.232.07+-0.23-2.92+-0.230.19+-0.232.07+-0.23Co I
Ni I2...0.38+-0.193.51+-0.19-2.71+-0.190.40+-0.193.51+-0.19Ni I
Sr II1...-0.43+-0.19-0.63+-0.19-3.50+-0.19-0.39+-0.19-0.63+-0.19Sr II
Ba II2...-1.83+-0.19-2.73+-0.19-4.91+-0.19-1.80+-0.19-2.73+-0.19Ba II

Isotopic Ratio

12C/13C >3

Position

Right Ascension : 12 07 16.84 Declination : +41 39 32.5 Galactic Longitude (l) : N/A Galactic Latitude (b) : N/A

Observing Log

Date of Observation JD Facility Resolution S/N Exposure Time Vrad
2001-01-27 N/A SUBARUHDS 50000 41 5400 -206.53+-0.84

D.K.Lai et al.,AJ, 128, 2402, 2004(ADS)

ABUNDANCES OF EXTREMELY METAL-POOR STAR CANDIDATES


Stellar Parameters

Teff : 4854 log g : 1.87

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...0.29...-2.750.274.85Mg I
Ca IN/A...0.24...-2.760.263.58Ca I
Ti IIN/A...0.50...-2.450.572.50Ti II
Fe IN/A-3.02......-3.02...4.48Fe I
Ba IIN/A...<-1.37...<-4.44<-1.42<-2.26Ba II

Binary Parameters

Vrad -226

Position

Right Ascension : 12 07 16.84 Declination : +41 39 32.5 Galactic Longitude (l) : N/A Galactic Latitude (b) : N/A

Observing Log

Date of Observation JD Facility Resolution S/N Exposure Time Vrad
2001-01-21 N/A KECKII 7000 150 1000 N/A

S.Honda et al.,ApJS, 152, 113, 2004(ADS)

Spectroscopic Studies of Extremely Metal-Poor Stars with the Subaru High Dispersion Spectrograph. I. Observational Data


Binary Parameters

Vrad -206.53+-0.84

Position

Right Ascension : 12 07 16.84 Declination : +41 39 32.5 Galactic Longitude (l) : N/A Galactic Latitude (b) : N/A

Observing Log

Date of Observation JD Facility Resolution S/N Exposure Time Vrad
2001-01-27 N/A SUBARUHDS 50000 41 5400 -206.53+-0.84

D.K.Lai et al.,ApJ, 667, 1185, 2007(ADS)

Carbon and Strontium Abundances of Metal-poor Stars


Stellar Parameters

Teff : 4854 log g : 1.87

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...-0.30+-0.26...-3.19+-0.26-0.34+-0.265.24+-0.26C
FeN/A-3.02......-2.85...4.65Fe
SrN/A...-0.48...-3.47-0.62-0.60Sr
BaN/A...<-1.37...<-4.44<-1.59<-2.26Ba

Position

Right Ascension : 12 07 16.84 Declination : +41 39 32.5 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 KECKII 7000 N/A N/A N/A

S.Honda et al.,ApJ, 730, 77, 2011(ADS)

Spectroscopic Studies of Extremely Metal-poor Stars with the Subaru High Dispersion Spectrograph. V. The Zn-enhanced Metal-poor Star BS 16920-017


Stellar Parameters

Teff : 4760 log g : 1.2 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
CHN/A...+0.125.37-3.060.065.37CH
Na I2...+0.183.24-3.000.123.24Na I
Mg I7...+0.24+-0.214.66+-0.21-2.94+-0.210.18+-0.214.66+-0.21Mg I
Al I1...-0.612.66-3.79-0.672.66Al I
Si I1...-0.104.23-3.28-0.164.23Si I
Ca I10...+0.10+-0.143.26+-0.14-3.08+-0.140.04+-0.143.26+-0.14Ca I
Sc II3...-0.23+-0.08-0.26+-0.08-3.41+-0.08-0.29+-0.08-0.26+-0.08Sc II
Ti I11...+0.41+-0.132.18+-0.13-2.77+-0.130.35+-0.132.18+-0.13Ti I
Ti II20...+0.49+-0.142.26+-0.14-2.69+-0.140.43+-0.142.26+-0.14Ti II
V I1...-0.160.59-3.34-0.220.59V I
V II1...+0.401.15-2.780.341.15V II
Cr I6...+0.16+-0.202.62+-0.20-3.02+-0.200.10+-0.202.62+-0.20Cr I
Cr II2...+0.062.52-3.120.002.52Cr II
Mn I6...-0.18+-0.332.07+-0.33-3.36+-0.33-0.24+-0.332.07+-0.33Mn I
Fe I84-3.12+-0.22...4.38+-0.22-3.12+-0.22...4.38+-0.22Fe I
Fe II10-3.24+-0.17...4.26+-0.17-3.24+-0.17...4.26+-0.17Fe II
Co I5...+0.32+-0.202.13+-0.20-2.86+-0.200.26+-0.202.13+-0.20Co I
Ni I5...+0.44+-0.063.48+-0.06-2.74+-0.060.38+-0.063.48+-0.06Ni I
Cu I1...<+0.30<1.31<-2.88<0.24<1.31Cu I
Zn I2...+1.042.42-2.140.982.42Zn I
Sr II2...-0.44-0.75-3.62-0.50-0.75Sr II
Ba II2...-1.71-2.71-4.89-1.77-2.71Ba II
Eu II1...<+0.00<-2.66<-3.18<-0.06<-2.66Eu II

Binary Parameters

Vrad -206.2+-0.4

Position

Right Ascension : 12 07 16.84 Declination : +41 39 32.5 Galactic Longitude (l) : N/A Galactic Latitude (b) : N/A

Observing Log

Date of Observation JD Facility Resolution S/N Exposure Time Vrad
2001-01-27 2451937 SUBARUHDS 50000 59 5400 -206.5+-0.8
2004-05-31 2453156 SUBARUHDS 60000 62 1800 -206.2+-0.4