HE0023-4825

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 : 5816 log g : 3.63 vturb : 1.45

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...0.31+-0.266.64+-0.23-1.79+-0.230.27+-0.266.64+-0.23CH
Mg I4...0.22+-0.235.74+-0.17-1.86+-0.170.20+-0.235.74+-0.17Mg I
Al I1...-1.01+-0.273.40+-0.24-3.05+-0.24-0.99+-0.273.40+-0.24Al I
Ca I7...0.26+-0.244.56+-0.20-1.78+-0.200.28+-0.244.56+-0.20Ca I
Sc II4...0.03+-0.261.14+-0.23-2.01+-0.230.05+-0.261.14+-0.23Sc II
Ti12...0.31+-0.243.27+-0.20-1.68+-0.200.38+-0.243.27+-0.20Ti
Cr I3...0.00+-0.253.61+-0.24-2.03+-0.240.03+-0.253.61+-0.24Cr I
Mn I3...-0.45+-0.242.88+-0.21-2.55+-0.21-0.49+-0.242.88+-0.21Mn I
Fe47...0.00+-0.225.44+-0.18-2.06+-0.180.00+-0.225.44+-0.18Fe
Co I4...0.12+-0.252.98+-0.22-2.01+-0.220.05+-0.252.98+-0.22Co I
Ni I2...-0.01+-0.274.19+-0.27-2.03+-0.270.03+-0.274.19+-0.27Ni I
Sr2...-0.02+-0.280.89+-0.27-1.98+-0.270.08+-0.280.89+-0.27Sr
Y II1...-0.05+-0.260.13+-0.23-2.08+-0.23-0.02+-0.260.13+-0.23Y II
Ba II1...-0.06+-0.280.01+-0.27-2.17+-0.27-0.11+-0.280.01+-0.27Ba II

Position

Right Ascension : 00 25 50.30 Declination : -48 08 27.1 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 42 N/A -21.5

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-1.760.306.76-1.670.396.76C
FeN/A-2.06......-2.06...5.44Fe

Position

Right Ascension : 00 25 50.30 Declination : -48 08 27.1 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 : 5816 log g : 3.63 vturb : 1.45

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...0.31...-1.620.276.81C
FeN/A-2.06......-1.89...5.61Fe
ThN/A...<1.42<-0.55<-0.61<1.28<-0.55Th

Position

Right Ascension : 00 25 50.30 Declination : -48 08 27.1 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