HE2252-4157

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 : 5090 log g : 2.87 vturb : 1.55

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...-0.15+-0.276.31+-0.27-2.12+-0.27-0.19+-0.276.31+-0.27CH
Mg I4...0.25+-0.235.91+-0.18-1.69+-0.180.24+-0.235.91+-0.18Mg I
Al I1...-0.70+-0.253.84+-0.22-2.61+-0.22-0.68+-0.253.84+-0.22Al I
Ca I9...0.28+-0.244.71+-0.21-1.63+-0.210.30+-0.244.71+-0.21Ca I
Sc II5...0.11+-0.251.35+-0.20-1.80+-0.200.13+-0.251.35+-0.20Sc II
Ti17...0.19+-0.253.28+-0.22-1.67+-0.220.26+-0.253.28+-0.22Ti
V3...0.00+-0.242.07+-0.21-1.86+-0.210.07+-0.242.07+-0.21V
Cr I3...-0.10+-0.243.65+-0.23-1.99+-0.23-0.06+-0.243.65+-0.23Cr I
Mn I3...-0.19+-0.253.27+-0.24-2.16+-0.24-0.23+-0.253.27+-0.24Mn I
Fe51...0.00+-0.225.57+-0.18-1.93+-0.180.00+-0.225.57+-0.18Fe
Co I6...0.15+-0.273.14+-0.26-1.85+-0.260.08+-0.273.14+-0.26Co I
Ni I4...-0.37+-0.273.96+-0.26-2.26+-0.26-0.33+-0.273.96+-0.26Ni I
Zn I2...0.12+-0.262.79+-0.21-1.77+-0.210.16+-0.262.79+-0.21Zn I
Sr2...0.01+-0.241.05+-0.21-1.82+-0.210.11+-0.241.05+-0.21Sr
Y II6...-0.09+-0.270.22+-0.23-1.99+-0.23-0.06+-0.270.22+-0.23Y II
Zr II2...0.29+-0.270.96+-0.23-1.62+-0.230.31+-0.270.96+-0.23Zr II
Ba II1...0.29+-0.240.49+-0.20-1.69+-0.200.24+-0.240.49+-0.20Ba II
La II5...0.11+-0.27-0.65+-0.23-1.75+-0.230.18+-0.27-0.65+-0.23La II
Nd II2...0.18+-0.27-0.25+-0.23-1.67+-0.230.26+-0.27-0.25+-0.23Nd II
Eu II4...0.53+-0.27-0.89+-0.23-1.41+-0.230.52+-0.27-0.89+-0.23Eu II

Position

Right Ascension : 22 55 34.22 Declination : -41 41 29.3 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 70 N/A -94.5

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-2.07-0.146.45-1.98-0.056.45C
FeN/A-1.93......-1.93...5.57Fe

Position

Right Ascension : 22 55 34.22 Declination : -41 41 29.3 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 : 5090 log g : 2.87 vturb : 1.55

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...-0.15...-1.95-0.196.48C
FeN/A-1.93......-1.76...5.74Fe
EuN/A...0.53...-1.410.35-0.89Eu
ThN/A...0.52-1.32-1.380.38-1.32Th

Position

Right Ascension : 22 55 34.22 Declination : -41 41 29.3 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