HE2122-4707

taken from 1 paper(s):

/J.G.Cohen et al.(2013)/


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 : 5147+-100 log g : 2.5+-0.25 vturb : 1.6+-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...1.6...-0.661.817.77CH
Na I2...0.17+-0.04...-2.17+-0.040.30+-0.044.07+-0.04Na I
Mg I3...0.4+-0.21...-2.08+-0.210.39+-0.215.52+-0.21Mg I
K I1...0.48...-1.850.623.18K I
Ca I4...0.31+-0.17...-2.09+-0.170.38+-0.174.25+-0.17Ca I
Ti I2...0.12+-0.13...-2.26+-0.130.21+-0.132.69+-0.13Ti I
Ti II4...0.49+-0.25...-1.89+-0.250.58+-0.253.06+-0.25Ti II
Cr I3...-0.19+-0.31...-2.58+-0.31-0.11+-0.313.06+-0.31Cr I
Fe IN/A-2.42+-0.27......-2.47+-0.27...5.03+-0.27Fe I
Fe II3-2.6+-0.16-0.18+-0.16...-2.65+-0.16-0.18+-0.164.85+-0.16Fe II
Y II5...0.73+-0.32...-1.66+-0.320.81+-0.320.55+-0.32Y II
Ba II3...2.03+-0.09...-0.44+-0.092.03+-0.091.74+-0.09Ba II
La II5...1.88+-0.14...-0.50+-0.141.97+-0.140.60+-0.14La II
Ce II2...1.95+-0.13...-0.50+-0.131.97+-0.131.08+-0.13Ce II
Nd II4...2+-0.24...-0.34+-0.242.13+-0.241.08+-0.24Nd II
Eu II1...2.01...-0.422.050.10Eu II

Binary Parameters

Vrad 78.9

Position

Right Ascension : 21 25 44.40 Declination : -46 54 11.0 Galactic Longitude (l) : N/A Galactic Latitude (b) : N/A

Observing Log

Date of Observation JD Facility Resolution S/N Exposure Time Vrad
2006-09 N/A MIKELCO 42000 85 5400 78.9