HE1207-2031

taken from 3 paper(s):

/P.S.Barklem et al.(2005)/ /L.Zhang et al.(2011)/ /J.Ren et al.(2012)/


P.S.Barklem et al.,AAP, 439, 129, 2005(ADS)

The Hamburg/ESO R-process enhanced star survey (HERES). II. Spectroscopic analysis of the survey sample


Stellar Parameters

Teff : 6281 log g : 4.40 vturb : 1.42

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
CH1...0.64+-0.286.21+-0.26-2.22+-0.260.60+-0.286.21+-0.26CH
Al I1...-0.96+-0.252.70+-0.21-3.75+-0.21-0.93+-0.252.70+-0.21Al I
Ca I3...0.50+-0.254.05+-0.20-2.29+-0.200.53+-0.254.05+-0.20Ca I
Sc II1...0.43+-0.260.78+-0.23-2.37+-0.230.45+-0.260.78+-0.23Sc II
Ti5...0.54+-0.252.75+-0.22-2.20+-0.220.62+-0.252.75+-0.22Ti
Cr I2...-0.20+-0.232.65+-0.19-2.99+-0.19-0.17+-0.232.65+-0.19Cr I
Fe24...0.00+-0.224.68+-0.17-2.82+-0.170.00+-0.224.68+-0.17Fe
Ni I2...-0.14+-0.233.29+-0.19-2.93+-0.19-0.11+-0.233.29+-0.19Ni I
Sr2...-0.16+-0.28-0.01+-0.26-2.88+-0.26-0.06+-0.28-0.01+-0.26Sr

Position

Right Ascension : 12 09 50.86 Declination : -20 47 43.8 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 20000 50 N/A 113.3

L.Zhang et al.,AAP, 528, A92, 2011(ADS)

The Hamburg/ESO R-process Enhanced Star survey (HERES). VI. The Galactic chemical evolution of silicon


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-1.990.836.53-1.900.926.53C
FeN/A-2.82......-2.82...4.68Fe

Position

Right Ascension : 12 09 50.86 Declination : -20 47 43.8 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 20000 N/A N/A N/A

J.Ren et al.,AAP, 537, A118, 2012(ADS)

The Hamburg/ESO R-process Enhanced Star survey (HERES). VII. Thorium abundances in metal-poor stars


Stellar Parameters

Teff : 6281 log g : 4.40 vturb : 1.42

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...0.64...-2.050.606.38C
FeN/A-2.82......-2.65...4.85Fe
ThN/A...<2.73<0.00<-0.06<2.59<0.00Th

Position

Right Ascension : 12 09 50.86 Declination : -20 47 43.8 Galactic Longitude (l) : N/A Galactic Latitude (b) : N/A

Observing Log

Date of Observation JD Facility Resolution S/N Exposure Time Vrad
2001-10-07 N/A VLT 20000 30-50 N/A N/A