HE0442-1234

taken from 4 paper(s):

/P.S.Barklem et al.(2005)/ /L.Zhang et al.(2011)/ /C.J.Hansen et al.(2012)/ /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 : 4604 log g : 1.34 vturb : 2.21

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...-0.61+-0.275.37+-0.27-3.06+-0.27-0.65+-0.275.37+-0.27CH
Mg I5...0.32+-0.245.48+-0.18-2.12+-0.180.29+-0.245.48+-0.18Mg I
Al I1...-0.34+-0.253.72+-0.24-2.73+-0.24-0.32+-0.253.72+-0.24Al I
Ca I9...0.20+-0.254.14+-0.20-2.20+-0.200.21+-0.254.14+-0.20Ca I
Sc II5...0.16+-0.240.91+-0.23-2.24+-0.230.17+-0.240.91+-0.23Sc II
Ti17...0.15+-0.232.76+-0.21-2.19+-0.210.22+-0.232.76+-0.21Ti
V3...-0.09+-0.231.49+-0.21-2.44+-0.21-0.03+-0.231.49+-0.21V
Cr I3...-0.52+-0.262.74+-0.30-2.90+-0.30-0.49+-0.262.74+-0.30Cr I
Mn I5...-0.39+-0.232.59+-0.20-2.84+-0.20-0.43+-0.232.59+-0.20Mn I
Fe54...0.00+-0.225.09+-0.20-2.41+-0.200.00+-0.225.09+-0.20Fe
Co I6...0.03+-0.242.54+-0.24-2.45+-0.24-0.04+-0.242.54+-0.24Co I
Ni I4...-0.02+-0.293.82+-0.34-2.40+-0.340.01+-0.293.82+-0.34Ni I
Zn I2...0.07+-0.252.26+-0.20-2.30+-0.200.11+-0.252.26+-0.20Zn I
Sr1...-0.32+-0.250.24+-0.26-2.63+-0.26-0.22+-0.250.24+-0.26Sr
Y II6...-0.24+-0.24-0.42+-0.22-2.63+-0.22-0.22+-0.24-0.42+-0.22Y II
Zr II2...0.08+-0.240.27+-0.22-2.31+-0.220.10+-0.240.27+-0.22Zr II
Ba II1...-0.13+-0.30-0.42+-0.34-2.60+-0.34-0.19+-0.30-0.42+-0.34Ba II
La II5...0.03+-0.25-1.21+-0.22-2.31+-0.220.10+-0.25-1.21+-0.22La II
Ce II3...-0.01+-0.27-0.85+-0.24-2.43+-0.24-0.02+-0.27-0.85+-0.24Ce II
Nd II6...0.11+-0.25-0.80+-0.23-2.22+-0.230.19+-0.25-0.80+-0.23Nd II
Sm II2...0.40+-0.25-1.00+-0.23-1.96+-0.230.45+-0.25-1.00+-0.23Sm II
Eu II4...0.52+-0.25-1.38+-0.22-1.90+-0.220.51+-0.25-1.38+-0.22Eu II

Position

Right Ascension : 04 44 51.70 Declination : -12 28 45.5 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 77 N/A 253.4

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-3.06-0.655.46-2.97-0.565.46C
FeN/A-2.41......-2.41...5.09Fe

Position

Right Ascension : 04 44 51.70 Declination : -12 28 45.5 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

C.J.Hansen et al.,AAP, 545, A31, 2012(ADS)

Silver and palladium help unveil the nature of a second r-process


Stellar Parameters

Teff : 4530+-100 log g : 0.65+-0.25 vturb : 1.8+-0.15

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
FeN/A-2.32+-0.15......-2.32+-0.15...5.18+-0.15Fe
SrN/A...-0.18+-0.17...-2.50+-0.17-0.18+-0.170.37+-0.17Sr
YN/A...-0.24+-0.16...-2.56+-0.16-0.24+-0.16-0.35+-0.16Y
ZrN/A...-0.06+-0.19...-2.38+-0.19-0.06+-0.190.20+-0.19Zr
PdN/A...0.12+-0.30...-2.20+-0.300.12+-0.30-0.63+-0.30Pd
EuN/A...0.28+-0.14...-2.04+-0.140.28+-0.14-1.52+-0.14Eu

Position

Right Ascension : 04 44 51.70 Declination : -12 28 45.5 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 40000 >100 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 : 4604 log g : 1.34 vturb : 2.21

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...-0.61...-2.89-0.655.54C
FeN/A-2.41......-2.24...5.26Fe
EuN/A...0.52...-1.900.34-1.38Eu
ThN/A...0.41-1.91-1.970.27-1.91Th

Position

Right Ascension : 04 44 51.70 Declination : -12 28 45.5 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