BPS CS22958-042: 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
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

Binarity

Vrad +162.51

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

Atmospheric data

Teff 6250
log g 3.50
vturb 1.5

Chemical Abundances

Element Nline [X/H] [X/Fe] log-e
Li...<-0.56<2.29<0.6
CH...0.15+-0.01+3.15+-0.128.70+-0.01
C2...0.15+-0.01+3.15+-0.128.70+-0.01
CN...-0.87+-0.01+2.15+-0.117.10+-0.01
NH...-0.75+-0.12+2.10+-0.127.05+-0.02
O...-1.70+-0.05+1.35+-0.117.17+-0.05
Na...-0.03+-0.10+2.82+-0.156.30+-0.10
Mg I...-2.53+-0.04+0.32+-0.155.05+-0.04
Al...-3.70-0.85+-0.102.77
Si I...-2.70+0.15+-0.104.85
Ca I...-2.49+-0.06+0.36+-0.153.87+-0.06
Sc II...-2.80+-0.05+0.05+-0.110.37+-0.05
Ti I...-2.42+0.43+-0.102.60
Ti II...-2.66+-0.07+0.19+-0.142.36+-0.07
V I...-2.90-0.05+-0.101.10
Cr I...-3.00+-0.04-0.15+-0.112.67+-0.04
Mn I...-3.06+-0.05-0.21+-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...-2.94+-0.16-0.09+-0.163.31+-0.10
Sr II...-3.05+-0.11-0.20+-0.11-0.53
Ba II...<-3.38+-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

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
2003-09-06 N/A RCCTIO N/A 42 4800 N/A
Galactic Longitude (l) N/A
Galactic Latitude (b) N/A
Declination N/A
Right Ascension N/A

Photometric data

V 14.516
B-V 0.479
V-R 0.294
V-K 1.303
EB-V 0.02

Atmospheric data

Teff 6224
log g 3.86
vturb 1.44

Chemical Abundances

Element Nline [X/H] [X/Fe] log-e
C...-0.25+-0.30+2.40+-0.308.31+-0.30
N...<-0.76+-0.32<1.89+-0.32<7.29+-0.31
Fe...-2.65+-0.24...4.85+-0.24
    : Data presented in the paper
    : Data converted with the solar abundance from Grevesse et al. (1996)