HE1201-1512

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 : 5725+-62 log g : 4.2

Position

Right Ascension : 12 03 37.00 Declination : -15 29 33.0 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 2454272.478 MIKELCO 31000-39000 100 238.7 N/A
2007-6 2454272.505 MIKELCO 31000-39000 100 238.9 N/A
2008-3 2454551.981 KECKHIRES 49000 100 237.2 N/A
2008-3 2454552.002 KECKHIRES 49000 100 237.3 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 : 5725 log g : 3.39 vturb : 1.5

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
CHN/A...1.66.11-2.321.606.11CH
NHN/A...<1.29<5.20<-2.63<1.29<5.20NH
Na2...-0.32+-0.152+-0.15-4.24+-0.15-0.32+-0.152+-0.15Na
Mg4...0.28+-0.113.96+-0.11-3.64+-0.110.28+-0.113.96+-0.11Mg
Al1...-0.721.81-4.64-0.721.81Al
Ca1...0.072.49-3.850.072.49Ca
Sc1...-0.09-0.86-4.01-0.09-0.86Sc
Ti II6...-0.1+-0.150.93+-0.15-4.02+-0.15-0.10+-0.150.93+-0.15Ti II
Cr1...-0.481.24-4.40-0.481.24Cr
Mn1...-0.580.93-4.50-0.580.93Mn
Fe I45-3.92+-0.12...3.58+-0.12-3.92+-0.12...3.58+-0.12Fe I
Co1...0.821.89-3.100.821.89Co
Ni2...0.15+-0.142.45+-0.14-3.77+-0.140.15+-0.142.45+-0.14Ni
Sr1...<-1.27<-2.32<-5.19<-1.27<-2.32Sr
Ba1...<-0.34<-2.08<-4.26<-0.34<-2.08Ba

Position

Right Ascension : 12 03 37.0 Declination : -15 29 33.0 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 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 : 5725 log g : 4.7

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...1.145.71-2.721.145.71C
FeN/A-3.86......-3.86...3.64Fe
BaN/A...<0.05...<-3.81<0.05<-1.63Ba

Binary Parameters

Binarity Negative
Vrad 238.91+-2.51

Position

Right Ascension : 12 03 37.1 Declination : -15 29 32 Galactic Longitude (l) : N/A Galactic Latitude (b) : N/A

Observing Log

Date of Observation JD Facility Resolution S/N Exposure Time Vrad
2014-01-12-040447 2456669.67 ESPADONSCFHT 68000 N/A N/A 239.8+-1.32
2014-01-12-040447 2456669.67 ESPADONSCFHT 68000 N/A N/A 237.06+-1.7
2014-02-09-012624 2456697.56 ESPADONSCFHT 68000 N/A N/A 240.11+-0.52
2014-04-12-181423 2456760.26 ESPADONSCFHT 68000 N/A N/A 240.07+-0.79
2015-02-04-231648 2457058.47 SALTHRS 16000 N/A N/A 235.18+-3.34
2015-04-28-174536 2457141.24 SALTHRS 16000 N/A N/A 239.26+-6.04