SMSSJ160540.18-144323.1

taken from 2 paper(s):

/D.S.Aguado et al.(2022)/ /P.Molaro et al.(2023)/

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 : 4850 log g : 2

Binary Parameters

Vrad -226.173+-0.035

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
2409676.777 VLTESPRESSO 140000 5-20 3150 -226.059+-0.037
2409726.689 VLTESPRESSO 140000 5-20 3150 -226.118+-0.036
2409727.56 VLTESPRESSO 140000 5-20 3150 -226.196+-0.037
2409761.559 VLTESPRESSO 140000 5-20 3150 -226.214+-0.03
2409792.555 VLTESPRESSO 140000 5-20 3150 -226.278+-0.033

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

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


Stellar Parameters

Teff : 4850+-100 log g : 2.0+-0.2

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......<0.0<-3.26<2.95<0.0Li
FeN/A-6.21......-6.21...1.29Fe
SrN/A...<0.18...<-5.93<0.28<-3.06Sr
BaN/A...<0.6...<-5.66<0.55<-3.48Ba

Isotopic Ratio

12C/13C 67.3+-1.0

Position

Right Ascension : 16 05 40.1836670077 Declination : -14 43 23.174298356 Galactic Longitude (l) : N/A Galactic Latitude (b) : N/A

Observing Log

Date of Observation JD Facility Resolution S/N Exposure Time Vrad
2459676.777 VLTESPRESSO 140000 11 3150 N/A
2459726.689 VLTESPRESSO 140000 11 3150 N/A
2459727.56 VLTESPRESSO 140000 14 3150 N/A
2459761.559 VLTESPRESSO 140000 10 3150 N/A
2459792.555 VLTESPRESSO 140000 15 3150 N/A
2460030.865 VLTESPRESSO 140000 10 3144 N/A
2460078.765 VLTESPRESSO 140000 14 3144 N/A