BPS CS31080-095: found in 2 paper(s).

Labels:

/T.Sivarani et al.(2006)/ /J.A.Johnson et al.(2007)/

Find this object in SIMBAD


A0108

Title First stars X. The nature of three unevolved carbon-enhanced metal-poor stars
ADS T.Sivarani et al.,AAP, 459, 125, 2006
Authors T. Sivarani, T. C. Beers, P. Bonifacio, P. Molaro, R. Cayrel, F. Herwig, M. Spite, F. Spite, B. Plez, J. Andersen, B. Barbuy, E. Depagne, V. Hill, P. Francois, B. Nordstrom, F. Primas

Get more information of this paper.

Basic Informations

Observation Date JD Facility Resolution S/N Exposure Time Vrad
2000-10-19 2451836.757245 VLT 43000 93 2400 -43.64
2000-10-19 2451836.7864673 VLT 43000 72 2400 -43.30
2001-10-19 2452201.8331806 VLT 43000 82 3600 -43.76
2001-10-20 2452202.8388291 VLT 43000 52 3000 -43.76
2001-11-06 2452219.7454194 VLT 43000 92 3600 -43.66
2001-11-09 2452222.7693614 VLT 43000 48 1000 -43.34
Galactic Longitude (l) N/A
Galactic Latitude (b) N/A
Declination 451357
Right Ascension 044421.8

Binarity

Vrad -43.34

Photometric data

V 12.989
B-V 0.521
U-B -0.291
V-R 0.317
J-H 0.272
J-K 0.350
V-K 1.397
EB-V 0.009

Atmospheric data

Teff 6050
log g 4.50
vturb 1.0

Chemical Abundances

Element Nline [X/H] [X/Fe] log-e
Li...0.57+-0.053.42+-0.051.73+-0.05
CH...-0.30+-0.01+2.69+-0.148.25+-0.01
C2...-0.20+-0.01+2.79+-0.148.35+-0.01
CN...-2.32+-0.01+0.70+-0.115.65+-0.01
O...-0.70+-0.05+2.35+-0.128.17+-0.05
Na...-3.13+-0.05-0.28+-0.123.20+-0.05
Mg I...-2.20+0.65+-0.125.38
Al...-3.80-0.95+-0.112.67
Si I...-2.80+0.05+-0.154.75
Ca I...-2.68+-0.05+0.17+-0.133.68+-0.05
Sc II...-2.87+-0.05-0.02+-0.140.30+-0.05
Ti I...-2.43+-0.03+0.42+-0.162.59+-0.03
Ti II...-2.63+-0.01+0.22+-0.112.39+-0.01
V I...-2.85+-0.05+0.00+-0.121.15+-0.05
Cr I...-2.83+-0.03+0.02+-0.122.84+-0.03
Mn I...-3.06+-0.05-0.21+-0.132.33+-0.05
Fe I...-2.85+-0.003-0.00+-0.104.65+-0.003
Fe II...-2.84+-0.02-0.05+-0.114.66+-0.02
Co I...-2.54+-0.11+0.31+-0.112.38+-0.03
Ni I...-2.76+-0.16+0.09+-0.163.49+-0.03
Zn I...-2.27+-0.15+0.58+-0.152.33+-0.08
Sr II...-3.26+-0.12-0.41+-0.12-0.29+-0.05
Y II...-3.20+-0.13-0.35+-0.13-0.96+-0.05
Ba II...-2.08+-0.15+0.77+-0.150.05+-0.05
    : Data presented in the paper
    : Data converted with the solar abundance from Grevesse et al. (1996)

Isotope ratio

12C/13C >40

A0114

Title A Search for Nitrogen-enhanced Metal-poor Stars
ADS J.A.Johnson et al.,ApJ, 658, 1203, 2007
Authors J. A. Johnson, F. Herwig, T. C. Beers, N. Christlieb

Get more information of this paper.

Basic Informations

Observation Date JD Facility Resolution S/N Exposure Time Vrad
2004-11-27 N/A RCCTIO N/A 17 4800 N/A
Galactic Longitude (l) N/A
Galactic Latitude (b) N/A
Declination N/A
Right Ascension N/A

Photometric data

V 12.989
B-V 0.521
U-B -0.291
V-R 0.317
V-K 1.394
EB-V 0.01

Atmospheric data

Teff 5972
log g 3.73
vturb 1.44

Chemical Abundances

Element Nline [X/H] [X/Fe] log-e
C...-0.65+-0.30+2.10+-0.307.91+-0.30
N...<-1.49+-0.32<1.26+-0.32<6.56+-0.31
Fe...-2.75+-0.24...4.75+-0.24
    : Data presented in the paper
    : Data converted with the solar abundance from Grevesse et al. (1996)