HE1500-1628

taken from 3 paper(s):

/P.S.Barklem et al.(2005)/ /L.Zhang et al.(2011)/ /J.G.Cohen et al.(2013)/

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 : 4994 log g : 2.10 vturb : 1.85

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...0.13+-0.276.21+-0.26-2.22+-0.260.09+-0.276.21+-0.26CH
Mg I6...0.18+-0.235.45+-0.18-2.15+-0.180.16+-0.235.45+-0.18Mg I
Al I1...-1.01+-0.293.15+-0.28-3.30+-0.28-0.99+-0.293.15+-0.28Al I
Ca I7...-0.18+-0.243.87+-0.20-2.47+-0.20-0.16+-0.243.87+-0.20Ca I
Sc II5...0.04+-0.260.90+-0.23-2.25+-0.230.06+-0.260.90+-0.23Sc II
Ti15...-0.23+-0.242.48+-0.21-2.47+-0.21-0.16+-0.242.48+-0.21Ti
V2...-0.18+-0.241.52+-0.20-2.41+-0.20-0.10+-0.241.52+-0.20V
Cr I3...-0.31+-0.273.05+-0.28-2.59+-0.28-0.28+-0.273.05+-0.28Cr I
Mn I5...-0.29+-0.232.80+-0.20-2.63+-0.20-0.32+-0.232.80+-0.20Mn I
Fe54...0.00+-0.225.19+-0.18-2.31+-0.180.00+-0.225.19+-0.18Fe
Co I5...0.15+-0.252.77+-0.24-2.22+-0.240.09+-0.252.77+-0.24Co I
Ni I4...0.01+-0.313.95+-0.32-2.27+-0.320.04+-0.313.95+-0.32Ni I
Sr2...-1.76+-0.30-1.10+-0.30-3.97+-0.30-1.66+-0.30-1.10+-0.30Sr
Ba II1...-1.68+-0.26-1.85+-0.23-4.03+-0.23-1.72+-0.26-1.85+-0.23Ba II

Position

Right Ascension : 15 02 56.60 Declination : -16 40 07.0 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 VLT 20000 45 N/A 23.5

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-2.220.096.30-2.130.186.30C
FeN/A-2.31......-2.31...5.19Fe

Position

Right Ascension : 15 02 56.60 Declination : -16 40 07.0 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 VLT 20000 N/A N/A N/A

J.G.Cohen et al.,ApJ, 778, 56, 2013(ADS)

Normal and Outlying Populations of the Milky Way Stellar Halo at [Fe/H] <-2


Stellar Parameters

Teff : 4807+-100 log g : 1.5+-0.25 vturb : 1.9+-0.2

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...-0.01...-2.230.206.20CH
Na I2...-0.18+-0.11...-2.48+-0.11-0.05+-0.113.76+-0.11Na I
Mg I5...0.36+-0.08...-2.08+-0.080.35+-0.085.52+-0.08Mg I
Al I1...-0.46...-2.82-0.393.63Al I
Si I3...0.1+-0.11...-2.24+-0.110.19+-0.115.27+-0.11Si I
K I1...0.14...-2.150.282.88K I
Ca I8...-0.29+-0.11...-2.65+-0.11-0.22+-0.113.69+-0.11Ca I
Sc II4...-0.12+-0.09...-2.55+-0.09-0.12+-0.090.60+-0.09Sc II
Ti I8...-0.28+-0.07...-2.62+-0.07-0.19+-0.072.33+-0.07Ti I
Ti II12...-0.4+-0.12...-2.74+-0.12-0.31+-0.122.21+-0.12Ti II
Cr I5...-0.45+-0.09...-2.80+-0.09-0.37+-0.092.84+-0.09Cr I
Mn I5...-0.42+-0.12...-2.84+-0.12-0.41+-0.122.59+-0.12Mn I
Fe IN/A-2.38+-0.13......-2.43+-0.13...5.07+-0.13Fe I
Fe II15-2.5+-0.15-0.12+-0.15...-2.55+-0.15-0.12+-0.154.95+-0.15Fe II
Co I1...-0.26...-2.71-0.282.28Co I
Ni I3...0.06+-0.1...-2.29+-0.10.14+-0.13.93+-0.1Ni I
Zn I2...-0.24+-0.02...-2.58+-0.02-0.15+-0.021.98+-0.02Zn I
Sr II1...-2.09...-4.44-2.01-1.57Sr II
Ba II3...-1.72+-0.14...-4.15+-0.14-1.72+-0.14-1.97+-0.14Ba II

Binary Parameters

Vrad 22.4

Position

Right Ascension : 15 02 56.60 Declination : -16 40 07.0 Galactic Longitude (l) : N/A Galactic Latitude (b) : N/A

Observing Log

Date of Observation JD Facility Resolution S/N Exposure Time Vrad
2012-01 N/A KECKHIRES 36000 90 2350 22.4