HE0218-2738

taken from 4 paper(s):

/E.Carretta et al.(2002)/ /J.G.Cohen et al.(2002)/ /J.G.Cohen et al.(2004)/ /J.G.Cohen et al.(2013)/

E.Carretta et al.,AJ, 124, 481, 2002(ADS)

STELLAR ARCHAEOLOGY: A KECK PILOT PROGRAM ON EXTREMELY METAL-POOR STARS FROM THE HAMBURG/ESO SURVEY. II. ABUNDANCE ANALYSIS


Stellar Parameters

Teff : 6550 log g : 4.30 vturb : 0.84

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
Mg I2...0.06+-0.03...-3.48+-0.030.03+-0.034.12+-0.03Mg I
Al I1...-0.41...-3.91-0.402.54Al I
Si I1...-0.13...-3.61-0.103.90Si I
Ca I1...0.34...-3.160.353.18Ca I
Sc II1...0.62...-2.960.550.19Sc II
Ti II9...0.62+-0.12...-2.86+-0.120.65+-0.122.09+-0.12Ti II
Cr I2...-0.16+-0.14...-3.65+-0.14-0.14+-0.141.99+-0.14Cr I
Fe I19-3.52+-0.14......-3.51+-0.14...3.99+-0.14Fe I
Sr II1...-0.43...-3.92-0.41-1.05Sr II

Position

Right Ascension : 02 21 03.93 Declination : -27 24 40.5 Galactic Longitude (l) : N/A Galactic Latitude (b) : N/A

Observing Log

Date of Observation JD Facility Resolution S/N Exposure Time Vrad
2000-09 N/A KECKHIRES 45000 N/A N/A N/A

J.G.Cohen et al.,AJ, 124, 470, 2002(ADS)

STELLAR ARCHAEOLOGY: A KECK PILOT PROGRAM ON EXTREMELY METAL-POOR STARS FROM THE HAMBURG/ESO SURVEY. I. STELLAR PARAMETERS


Stellar Parameters

Teff : 6550 log g : 4.3

Binary Parameters

Vrad +134.0

Position

Right Ascension : 02 21 03.93 Declination : -27 24 40.5 Galactic Longitude (l) : N/A Galactic Latitude (b) : N/A

Observing Log

Date of Observation JD Facility Resolution S/N Exposure Time Vrad
2000-09 N/A KECKHIRES 45000 115 7200

J.G.Cohen et al.,ApJ, 612, 1107, 2004(ADS)

Abundances In Very Metal-Poor Dwarf Stars


Stellar Parameters

Teff : 6550 log g : 4.3 vturb : 0.8

Binary Parameters

Binarity Positive

Position

Right Ascension : 02 21 03.93 Declination : -27 24 40.5 Galactic Longitude (l) : N/A Galactic Latitude (b) : N/A

Observing Log

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 : 6550 log g : 4.3 vturb : 0.8

Position

Right Ascension : 02 21 03.93 Declination : -27 24 40.5 Galactic Longitude (l) : N/A Galactic Latitude (b) : N/A

Observing Log