A0108

Bibliography Data

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

List of objects

Object Comment S O
BPS CS22958-042 N/A S O
BPS CS29528-041 N/A S O
BPS CS31080-095 N/A S O

S: Find this object in SIMBAD
O: Find this object in Other papers

BPS CS22958-042

Atmospheric data

Teff : 6250 log g : 3.50 vturb : 1.5

Chemical Abundances

Element Nline [X/H] [X/Fe] log-e
Li...<-0.56<2.37<0.6
CH...0.30+-0.12+3.15+-0.128.70+-0.01
C2...0.22+-0.12+3.15+-0.128.70+-0.01
CN...-0.78+-0.11+2.15+-0.117.10+-0.01
NH...-0.75+-0.12+2.10+-0.127.05+-0.02
O...-1.58+-0.11+1.35+-0.117.17+-0.05
Na...-0.03+-0.15+2.82+-0.156.30+-0.10
Mg I...-2.53+-0.15+0.32+-0.155.05+-0.04
Al...-3.70+-0.1-0.85+-0.102.77
Si I...-2.70+-0.1+0.15+-0.104.85
Ca I...-2.57+-0.15+0.36+-0.153.87+-0.06
Sc II...-2.80+-0.11+0.05+-0.110.37+-0.05
Ti I...-2.42+-0.1+0.43+-0.102.60
Ti II...-2.74+-0.14+0.19+-0.142.36+-0.07
V I...-2.90+-0.1-0.05+-0.101.10
Cr I...-3.00+-0.04-0.15+-0.112.67+-0.04
Mn I...-3.14+-0.14-0.21+-0.142.33+-0.05
Fe I...-2.85+-0.04+0.00+-0.104.65+-0.04
Fe II...-2.93+-0.09-0.08+-0.124.57+-0.09
Co I...-2.65+-0.18+0.20+-0.182.27+-0.14
Ni I...-3.02+-0.16-0.09+-0.163.31+-0.10
Sr II...-3.05+-0.11-0.20+-0.11-0.53
Ba II...<-3.46+-0.16<-0.53+-0.16<-1.40
    : Data presented in the paper
    : Data converted with the solar abundance from Grevesse et al. (1996)

Isotope ratio

12C/13C 9.0+-2.0

Binarity

Vrad +162.51

Basic Informations

Observation Date JD Facility Resolution S/N Exposure Time Vrad
2001-11-05 2452218.6900217 VLT 43000 48 3600 +165.21
2001-11-05 2452218.7360571 VLT 43000 35 3600 +162.51
Galactic Longitude (l) : N/A Galactic Latitude (b) : N/A Declination : 571707 Right Ascension : 020107.5

Photometric data

V : 14.516 B-V : 0.479 V-R : 0.294 J-H : 0.227 J-K : 0.302 V-K : 1.303 EB-V : 0.025

BPS CS29528-041

Atmospheric data

Teff : 6150 log g : 4.00 vturb : 1.3

Chemical Abundances

Element Nline [X/H] [X/Fe] log-e
Li...0.55+-0.053.85+-0.051.71+-0.05
CH...-1.71+-0.15+1.59+-0.156.70+-0.08
CN...-0.23+-0.13+3.07+-0.137.57+-0.06
NH...-0.30+-0.15+3.00+-0.157.50+-0.1
O...<-1.90+-0.1<+1.40+-0.10<6.77
Na...-2.10+-0.11+1.20+-0.114.23+-0.05
Mg I...-2.90+-0.11+0.40+-0.114.68+-0.01
Al...-4.15+-0.1-0.85+-0.102.77
Si I...-3.50+-0.1-0.20+-0.104.05
Ca I...-2.90+-0.15+0.40+-0.153.46+-0.03
Sc II...-3.04+-0.15+0.26+-0.150.13+-0.03
Ti I...-2.90+-0.15+0.40+-0.152.32+-0.04
Ti II...-2.90+-0.1+0.40+-0.102.12+-0.007
V I...-3.30+-0.15+0.00+-0.150.70
Cr I...-3.47+-0.01-0.17+-0.112.20+-0.01
Mn I...-3.80+-0.15-0.50+-0.151.59+-0.07
Fe I...-3.30+-0.002+0.00+-0.104.20+-0.002
Fe II...-3.30+-0.02+0.00+-0.104.20+-0.02
Co I...-3.30+-0.15+0.00+-0.151.62+-0.04
Ni I...-3.30+-0.12+0.00+-0.122.95+-0.01
Sr II...-3.50+-0.1-0.20+-0.10-0.53
Ba II...-2.33+-0.1+0.97+-0.10-0.23
    : Data presented in the paper
    : Data converted with the solar abundance from Grevesse et al. (1996)

Binarity

Vrad -285.0

Basic Informations

Observation Date JD Facility Resolution S/N Exposure Time Vrad
2001-09-06 2452158.8486878 VLT 43000 50 5000 -285.1
2001-10-21 2452203.7220389 VLT 43000 33 3260 -285.4
2001-11-07 2452220.7338976 VLT 43000 37 3600 -285.0
Galactic Longitude (l) : N/A Galactic Latitude (b) : N/A Declination : 181330 Right Ascension : 022925.1

Photometric data

V : 14.60 B-V : 0.42 U-B : -0.19 J-H : 0.314 J-K : 0.339 V-K : 1.292 EB-V : 0.030

BPS CS31080-095

Atmospheric data

Teff : 6050 log g : 4.50 vturb : 1.0

Chemical Abundances

Element Nline [X/H] [X/Fe] log-e
Li...0.57+-0.053.41+-0.051.73+-0.05
CH...-0.16+-0.14+2.69+-0.148.25+-0.01
C2...-0.05+-0.14+2.79+-0.148.35+-0.01
CN...-2.14+-0.11+0.70+-0.115.65+-0.01
O...-0.49+-0.12+2.35+-0.128.17+-0.05
Na...-3.13+-0.12-0.28+-0.123.20+-0.05
Mg I...-2.20+-0.12+0.65+-0.125.38
Al...-3.80+-0.11-0.95+-0.112.67
Si I...-2.80+-0.15+0.05+-0.154.75
Ca I...-2.67+-0.13+0.17+-0.133.68+-0.05
Sc II...-2.87+-0.14-0.02+-0.140.30+-0.05
Ti I...-2.43+-0.16+0.42+-0.162.59+-0.03
Ti II...-2.62+-0.11+0.22+-0.112.39+-0.01
V I...-2.85+-0.12+0.00+-0.121.15+-0.05
Cr I...-2.83+-0.03+0.02+-0.122.84+-0.03
Mn I...-3.05+-0.13-0.21+-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...-2.75+-0.16+0.09+-0.163.49+-0.03
Zn I...-2.26+-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...-3.19+-0.13-0.35+-0.13-0.96+-0.05
Ba II...-2.07+-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

Binarity

Vrad -43.34

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

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