HE0557-4840: found in 1 paper(s).

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/J.E.Norris et al.(2007)/

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A0129

Title HE 0557-4840: Ultra–Metal-Poor and Carbon-Rich
ADS J.E.Norris et al.,ApJ, 670, 774, 2007
Authors J. E. Norris, N. Christlieb, A. J. Korn, K. Eriksson, M. S. Bessell, T. C. Beers, K. Wisotzki, D. Reimers

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Basic Informations

Observation Date JD Facility Resolution S/N Exposure Time Vrad
2453771.029 VLT 40000 200 3600 211.44
2453771.072 VLT 40000 200 3600 211.67
2453771.159 VLT 40000 200 3600 211.61
2453791.025 VLT 40000 200 3600 211.98
2453792.035 VLT 40000 200 3600 211.90
2453792.078 VLT 40000 200 3600 212.02
2453813.999 VLT 40000 200 3600 211.84
Galactic Longitude (l) N/A
Galactic Latitude (b) N/A
Declination N/A
Right Ascension N/A

Binarity

Vrad 211.44

Photometric data

V 15.454
B-V 0.712
V-R 0.463
V-K 2.254
K 13.194

Atmospheric data

Teff 4900+-100
log g 2.2+-0.3
vturb 1.8+-0.2

Chemical Abundances

Element Nline [X/H] [X/Fe] log-e
Li I...<-0.46<4.29<0.70
CH...-3.10+-0.10+1.65+-0.105.29+-0.10
CN...<-2.38+-0.10<+2.37+-0.10<5.40+-0.10
NH...<-3.28+-0.20<+1.47+-0.20<4.50+-0.20
O I...<-1.66<+3.09<7.00
Na I...-4.91-0.161.26
Mg I...-4.50+-0.07+0.25+-0.073.03+-0.07
Al I...-5.36-0.611.01
Ca I...-4.50+0.251.81
Ca II...-4.13+0.622.18
Sc II...-4.44+-0.11+0.31+-0.11-1.39+-0.11
Ti II...-4.40+-0.10+0.35+-0.100.50+-0.10
Cr I...-5.45-0.700.19
Mn I...<-5.38<-0.63<0.01
Fe I...-4.75+-0.17...2.77+-0.17
Fe II...-4.80...2.70
Co I...-4.71+0.040.20
Ni I...-4.97+-0.10-0.22+-0.101.26+-0.10
Y II...<-4.01<+0.74<-1.80
Zr II...<-2.48<+2.27<0.11
Ba II...<-4.72<+0.03<-2.55
Eu II...<-2.71<+2.04<-2.19
    : Data presented in the paper
    : Data converted with the solar abundance from Grevesse et al. (1996)