HE2247-7400

taken from 3 paper(s):

/J.E.Norris et al.(2013)/ /D.Yong et al.(2013)/ /A.Arentsen et al.(2019)/

J.E.Norris et al.,ApJ, 762, 25, 2013(ADS)

The Most Metal-poor Stars. I. Discovery, Data, and Atmospheric Parameters


Stellar Parameters

Teff : 4829+-46 log g : 2

Position

Right Ascension : 22 51 19.40 Declination : -73 44 23.6 Galactic Longitude (l) : N/A Galactic Latitude (b) : N/A

Observing Log

Date of Observation JD Facility Resolution S/N Exposure Time Vrad
2007-6 2454272.82 MIKELCO 31000-39000 100 5.7 N/A

D.Yong et al.,ApJ, 762, 26, 2013(ADS)

THE MOST METAL-POOR STARS. II. CHEMICAL ABUNDANCES OF 190 METAL-POOR STARS INCLUDING 10 NEW STARS WITH [Fe/H] <-3.


Stellar Parameters

Teff : 4829 log g : 1.56 vturb : 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
CN/A...0.76.26-2.170.706.26C
Na1...0.824.19-2.050.824.19Na
Mg3...0.33+-0.125.06+-0.12-2.54+-0.120.33+-0.125.06+-0.12Mg
SiN/A...0.85.44-2.070.805.44Si
Ca7...0.43+-0.113.91+-0.11-2.43+-0.110.44+-0.113.91+-0.11Ca
Ti I3...0.34+-0.142.43+-0.14-2.52+-0.140.35+-0.142.43+-0.14Ti I
Cr3...-0.11+-0.142.66+-0.14-2.98+-0.14-0.11+-0.142.66+-0.14Cr
Fe I47-2.87+-0.16...4.63+-0.16-2.87+-0.16...4.63+-0.16Fe I
Fe II2-2.66+-0.26...4.84+-0.26-2.66+-0.26...4.84+-0.26Fe II
Ni1...0.533.88-2.340.533.88Ni
Sr1...<-0.15<-0.15<-3.02<-0.15<-0.15Sr
Ba4...-0.94+-0.17-1.62+-0.17-3.80+-0.17-0.93+-0.17-1.62+-0.17Ba

Position

Right Ascension : 22 51 19.40 Declination : -73 44 23.6 Galactic Longitude (l) : N/A Galactic Latitude (b) : N/A

Observing Log

Date of Observation JD Facility Resolution S/N Exposure Time Vrad
N/A VLT N/A N/A N/A N/A

A.Arentsen et al.,AAP, 621, A108, 2019(ADS)

Binarity among CEMP-no stars: an indication of multiple formation pathways?


Stellar Parameters

Teff : 4829 log g : 1.6

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
CN/A...0.76.58-1.851.026.58C
FeN/A-2.87......-2.87...4.63Fe
BaN/A...-0.94...-3.81-0.94-1.63Ba

Binary Parameters

Vrad 5.78+-0.59

Position

Right Ascension : 22 51 19.6 Declination : -73 44 21 Galactic Longitude (l) : N/A Galactic Latitude (b) : N/A

Observing Log

Date of Observation JD Facility Resolution S/N Exposure Time Vrad
2014-08-12-000000 2456881.5 SALTHRS 16000 N/A N/A 6.54+-1.53