BD+18_2890: found in 6 paper(s).

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/D.L.Burris et al.(2000)/ /J.A.Johnson(2002)/ /J.P.Fulbright and J. A. Johnson(2003)/ /B.W.Carney et al.(2003)/ /J.A.Johnson and M. Bolte(2002)/ /J.A.Johnson and M. Bolte(2001)/

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A0014

Title NEUTRON-CAPTURE ELEMENTS IN THE EARLY GALAXY: INSIGHTS FROM A LARGE SAMPLE OF METAL-POOR GIANTS
ADS D.L.Burris et al.,ApJ, 544, 302, 2000
Authors D. L. Burris, C. A. Pilachowski, T. E. Armandroff, C. Sneden, J. J. Cowan, H. Roe

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Basic Informations

Observation Date JD Facility Resolution S/N Exposure Time Vrad
N/A N/A MAYALLKPNO 20000 100-200 N/A N/A
Galactic Longitude (l) N/A
Galactic Latitude (b) N/A
Declination N/A
Right Ascension N/A

Atmospheric data

Teff 5000
log g 2.20
vturb 1.30

Chemical Abundances

Element Nline [X/H] [X/Fe] log-e
Fe...-1.58...5.92
Ba...-1.320.260.81
    : Data presented in the paper
    : Data converted with the solar abundance from Grevesse et al. (1996)

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
1999-03-08 N/A LICKHAMILTON 60000 70 3600 N/A
1999-03-08 N/A LICKHAMILTON 60000 70 3600 N/A
Galactic Longitude (l) N/A
Galactic Latitude (b) N/A
Declination N/A
Right Ascension N/A

Photometric data

V 9.77
V-R 0.656
V-K 2.075
EB-V 0.00

Atmospheric data

Teff 4900
log g 2.00
vturb 1.50

Chemical Abundances

Element Nline [X/H] [X/Fe] log-e
Na I...-1.79+-0.19-0.08+-0.194.54+-0.19
Mg I...-1.14+-0.150.57+-0.156.44+-0.15
Al I...-2.37+-0.21-0.66+-0.214.10+-0.21
Si I...-1.27+-0.130.44+-0.136.28+-0.13
Ca I...-1.30+-0.130.41+-0.135.06+-0.13
Sc II...-1.66+-0.180.05+-0.181.51+-0.18
Ti I...-1.62+-0.160.09+-0.163.40+-0.16
Ti II...-1.47+-0.160.24+-0.163.55+-0.16
V I...-1.78+-0.16-0.07+-0.162.22+-0.16
V II...-1.40+-0.160.31+-0.162.60+-0.16
Cr I...-1.83+-0.17-0.12+-0.173.84+-0.17
Cr II...-1.47+-0.100.24+-0.104.20+-0.10
Mn I...-2.03+-0.12-0.32+-0.123.36+-0.12
Fe I...-1.71+-0.20...5.79+-0.20
Fe II...-1.73+-0.16...5.77+-0.16
Co I...-1.53+-0.340.18+-0.343.39+-0.34
Ni I...-1.75+-0.13-0.04+-0.134.50+-0.13
Zn I...-1.71+-0.090.00+-0.092.89+-0.09
Y II...-1.86+-0.16-0.15+-0.160.38+-0.16
Zr II...-1.57+-0.140.14+-0.141.03+-0.14
Ba II...-1.50+-0.290.21+-0.290.63+-0.29
La II...-1.59+-0.150.12+-0.15-0.42+-0.15
Ce II...-1.66+-0.170.05+-0.17-0.08+-0.17
Nd II...-1.38+-0.160.33+-0.160.12+-0.16
Sm II...-1.21+-0.150.50+-0.15-0.20+-0.15
Eu II...-1.31+-0.240.40+-0.24-0.80+-0.24
Tb II...<-0.49<1.22<-0.59
Dy II...-1.29+-0.180.42+-0.18-0.15+-0.18
Os I...<-0.84<0.87<0.61
    : Data presented in the paper
    : Data converted with the solar abundance from Grevesse et al. (1996)

A0074

Title Oxygen Abundances in Metal-poor Stars
ADS J.P.Fulbright et al.,ApJ, 595, 1154, 2003
Authors J. P. Fulbright, J. A. Johnson

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Basic Informations

Observation Date JD Facility Resolution S/N Exposure Time Vrad
2001-04-05 N/A GECKOCFHT 130000 120 1800 N/A
Galactic Longitude (l) N/A
Galactic Latitude (b) N/A
Declination N/A
Right Ascension N/A

Photometric data

V 9.84
B-V 0.82
V-R 0.66
V-K 2.11

Atmospheric data

Teff 4975
log g 2.15
vturb 1.3

Chemical Abundances

Element Nline [X/H] [X/Fe] log-e
O I...-1.12+-0.080.57+-0.087.57+-0.1
Fe...-1.69...5.81
Fe I...-1.49+-0.08...6.01+-0.08
Fe II...-1.67+-0.05...5.83+-0.05
    : Data presented in the paper
    : Data converted with the solar abundance from Grevesse et al. (1996)

A0138

Title Spectroscopic Binaries, Velocity Jitter, and Rotation in Field Metal-poor Red Giant and Red Horizontal-Branch Stars
ADS B.W.Carney et al.,AJ, 125, 293, 2003
Authors B. W. Carney, D. W. Latham, R. P. Stefanik, J. B. Laird, J. A. Morse

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Basic Informations

Observation Date JD Facility Resolution S/N Exposure Time Vrad
N/A 2445785.74072 WYETH N/A N/A N/A -17.45+-0.50
N/A 2445874.68120 WYETH N/A N/A N/A -24.48+-0.77
N/A 2445952.50112 WYETH N/A N/A N/A -31.77+-0.54
N/A 2446075.95588 WYETH N/A N/A N/A -32.52+-0.64
N/A 2446133.78142 WYETH N/A N/A N/A -26.65+-0.64
N/A 2446140.68827 WYETH N/A N/A N/A -25.67+-0.61
N/A 2446167.83953 WYETH N/A N/A N/A -22.48+-0.48
N/A 2446183.83518 WYETH N/A N/A N/A -21.59+-0.92
N/A 2446219.66183 WYETH N/A N/A N/A -18.73+-0.47
N/A 2446241.64705 WYETH N/A N/A N/A -17.94+-0.57
N/A 2446247.58227 WYETH N/A N/A N/A -17.94+-0.54
N/A 2446251.69517 WYETH N/A N/A N/A -18.32+-0.54
N/A 2446283.56534 WYETH N/A N/A N/A -18.52+-0.66
N/A 2446429.90752 WYETH N/A N/A N/A -33.35+-0.63
N/A 2446488.86041 WYETH N/A N/A N/A -35.50+-0.50
N/A 2446491.92075 WYETH N/A N/A N/A -36.03+-0.53
N/A 2446510.78661 WYETH N/A N/A N/A -35.48+-0.54
N/A 2446552.78304 WYETH N/A N/A N/A -33.17+-0.54
N/A 2446578.71992 WYETH N/A N/A N/A -30.56+-0.65
N/A 2446596.65840 WYETH N/A N/A N/A -27.50+-0.57
N/A 2446770.93941 WYETH N/A N/A N/A -18.83+-0.55
N/A 2446788.93006 WYETH N/A N/A N/A -21.15+-0.55
N/A 2446803.94686 WYETH N/A N/A N/A -21.97+-0.48
N/A 2446819.86169 WYETH N/A N/A N/A -22.62+-0.82
N/A 2446831.90524 WYETH N/A N/A N/A -24.53+-0.60
Galactic Longitude (l) N/A
Galactic Latitude (b) N/A
Declination +172525
Right Ascension 143213.5

Binarity

Binarity Positive
Vrad -26.65
Period 476.0

Photometric data

V-R 0.656
V-K 2.11

Atmospheric data

Teff 4970
log g 2.5

Chemical Abundances

Element Nline [X/H] [X/Fe] log-e
Fe...-1.61...5.89
    : 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
1999-03-08 N/A LICKHAMILTON 60000 70 3600 N/A

Chemical Abundances

Element Nline [X/H] [X/Fe] log-e
Fe...-1.73...5.77
Sr II...-1.76+-0.30-0.03+-0.301.21+-0.30
Y II...-1.86+-0.16-0.13+-0.160.38+-0.16
Zr II...-1.57+-0.140.16+-0.141.03+-0.14
Ba II...-1.50+-0.290.23+-0.290.63+-0.29
    : 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 4900
log g 2.00
vturb 1.50

Chemical Abundances

Element Nline [X/H] [X/Fe] log-e
Fe I...-1.73+-0.20...5.77+-0.20
Fe II...-1.75+-0.16...5.75+-0.16
Ba II...-1.49+-0.290.24+-0.290.64+-0.29
La II...-1.63+-0.150.10+-0.15-0.46+-0.15
Ce II...-1.62+-0.170.11+-0.17-0.04+-0.17
Nd II...-1.37+-0.160.36+-0.160.13+-0.16
Sm II...-1.19+-0.150.54+-0.15-0.18+-0.15
Eu II...-1.30+-0.240.43+-0.24-0.79+-0.24
Tb II...<-0.91<0.82<-1.01
Dy II...-1.24+-0.180.49+-0.18-0.10+-0.18
Os I...<-0.83<0.90<0.62
    : Data presented in the paper
    : Data converted with the solar abundance from Grevesse et al. (1996)