HE0233-0343

taken from 4 paper(s):

/T.Hansen et al.(2014)/ /T.Hansen et al.(2015)/ /D.S.Aguado et al.(2022)/ /P.Molaro et al.(2023)/

T.Hansen et al.,ApJ, 787, 162, 2014(ADS)

Exploring the Origin of Lithium, Carbon, Strontium, and Barium with Four New Ultra Metal-poor Stars


Stellar Parameters

Teff : 6100+-100 log g : 3.4+-0.3 vturb : 2.0+-0.3

Chemical Abundances

Original Data Converted Data Asplund et al. (2009)
Element Nline [X/H] [X/Fe] log-e [X/H] [X/Fe] log-e Element
LiN/A......1.77+-0.18-1.49+-0.183.19+-0.181.77+-0.18Li
CN/A...+3.48+-0.24...-1.20+-0.243.48+-0.247.23+-0.24C
NN/A...<+2.80...<-1.88<2.80<5.95N
NaN/A...<+0.50...<-4.18<0.50<2.06Na
MgN/A...+0.59+-0.15...-4.09+-0.150.59+-0.153.51+-0.15Mg
AlN/A...<+0.03...<-4.65<0.03<1.80Al
SiN/A...+0.37+-0.15...-4.31+-0.150.37+-0.153.20+-0.15Si
CaN/A...+0.34+-0.15...-4.34+-0.150.34+-0.152.00+-0.15Ca
ScN/A...<+0.20...<-4.48<0.20<-1.33Sc
TiN/A...+0.18+-0.17...-4.50+-0.170.18+-0.170.45+-0.17Ti
CrN/A...<+0.50...<-4.18<0.50<1.46Cr
MnN/A...<-0.10...<-4.78<-0.10<0.65Mn
FeN/A-4.68+-0.30......-4.68+-0.30...2.82+-0.30Fe
CoN/A...<+1.60...<-3.08<1.60<1.91Co
NiN/A...<+0.90...<-3.78<0.90<2.44Ni
SrN/A...+0.32+-0.19...-4.36+-0.190.32+-0.19-1.49+-0.19Sr
BaN/A...<+0.80...<-3.88<0.80<-1.70Ba

Binary Parameters

Vrad 64

Position

Right Ascension : 02 36 29.70 Declination : -03 30 06.0 Galactic Longitude (l) : N/A Galactic Latitude (b) : N/A

Observing Log

Date of Observation JD Facility Resolution S/N Exposure Time Vrad
2005-11-17 N/A VLT 45000 10-55 N/A 64
2005-11-20 N/A VLT 45000 10-55 N/A 64
2006-04-17 N/A VLT 45000 10-55 N/A 64

T.Hansen et al.,ApJ, 807, 173, 2015(ADS)

An Elemental Assay of Very, Extremely, and Ultra-metal-poor Stars


Stellar Parameters

Teff : 6100+-100 log g : 3.4+-0.3 vturb : 2.0+-0.3

Chemical Abundances

Original Data Converted Data Asplund et al. (2009)
Element Nline [X/H] [X/Fe] log-e [X/H] [X/Fe] log-e Element
LiN/A......+1.77+-0.18-1.49+-0.183.19+-0.18+1.77+-0.18Li
CN/A...+3.48+-0.24...-1.20+-0.243.48+-0.247.23+-0.24C
NN/A...<+2.80...<-1.88<2.80<5.95N
ON/A...<+4.00...<-0.68<4.00<8.01O
NaN/A...<+0.50...<-4.18<0.50<2.06Na
MgN/A...+0.59+-0.15...-4.09+-0.150.59+-0.153.51+-0.15Mg
AlN/A...<+0.03...<-4.65<0.03<1.80Al
SiN/A...+0.05+-0.16...-4.63+-0.160.05+-0.162.88+-0.16Si
CaN/A...+0.34+-0.15...-4.34+-0.150.34+-0.152.00+-0.15Ca
ScN/A...+0.00+-0.18...-4.68+-0.180.00+-0.18-1.53+-0.18Sc
TiN/A...+0.18+-0.17...-4.50+-0.170.18+-0.170.45+-0.17Ti
VN/A...<+2.50...<-2.18<2.50<1.75V
CrN/A...<+0.50...<-4.18<0.50<1.46Cr
MnN/A...<+0.20...<-4.48<0.20<0.95Mn
FeN/A-4.68+-0.20......-4.68+-0.20...2.82+-0.20Fe
CoN/A...<+1.60...<-3.08<1.60<1.91Co
NiN/A...<+0.90...<-3.78<0.90<2.44Ni
ZnN/A...<+2.60...<-2.08<2.60<2.48Zn
SrN/A...+0.32+-0.19...-4.36+-0.190.32+-0.19-1.49+-0.19Sr
BaN/A...<+0.80...<-3.88<0.80<-1.70Ba
EuN/A...<+3.00...<-1.68<3.00<-1.16Eu

Isotopic Ratio

12C/13C >5

Binary Parameters

Vrad 63.5+-0.6

Position

Right Ascension : 02 36 29.70 Declination : -03 30 06.0 Galactic Longitude (l) : N/A Galactic Latitude (b) : N/A

Observing Log

Date of Observation JD Facility Resolution S/N Exposure Time Vrad
2005-11-17 N/A VLT 45000 9-42 3600 63.5+-0.6
2005-11-18 N/A VLT 45000 N/A 7200 N/A
2005-11-19 N/A VLT 45000 N/A 4940 N/A
2005-11-20 N/A VLT 45000 N/A 3600 N/A

D.S.Aguado et al.,AAP, 668, 86, 2022(ADS)

ESPRESSO observations of HE 0107-5240 and other CEMP-no stars with [Fe/H] <= -4.5


Stellar Parameters

Teff : 6100 log g : 3.4

Binary Parameters

Vrad 51.857+-0.024

Position

Right Ascension : Declination : Galactic Longitude (l) : N/A Galactic Latitude (b) : N/A

Observing Log

Date of Observation JD Facility Resolution S/N Exposure Time Vrad
2408699.788 VLTESPRESSO 140000 5-20 3400 52.058+-0.027
2408760.818 VLTESPRESSO 140000 5-20 3400 52.127+-0.021
2408783.612 VLTESPRESSO 140000 5-20 3400 52.169+-0.024
2408813.743 VLTESPRESSO 140000 5-20 3400 51.074+-0.024

P.Molaro et al.,AAP, 679, A72, 2023(ADS)

The 12C/13C isotopic ratio at the dawn of chemical evolution


Stellar Parameters

Teff : 6100+-100 log g : 3.4+-0.3

Chemical Abundances

Original Data Converted Data Asplund et al. (2009)
Element Nline [X/H] [X/Fe] log-e [X/H] [X/Fe] log-e Element
LiN/A......1.65+-0.2-1.61+-0.23.09+-0.21.65+-0.2Li
FeN/A-4.70......-4.70...2.80Fe

Isotopic Ratio

12C/13C 78.9+-5.4

Position

Right Ascension : 02 36 29.7931635456 Declination : -03 30 06.029112888 Galactic Longitude (l) : N/A Galactic Latitude (b) : N/A

Observing Log

Date of Observation JD Facility Resolution S/N Exposure Time Vrad
2458699.788 VLTESPRESSO 140000 10 3400 N/A
2458760.818 VLTESPRESSO 140000 11 3400 N/A
2458783.612 VLTESPRESSO 140000 14 3400 N/A
2458813.743 VLTESPRESSO 140000 14 3400 N/A