HE0255-0859

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 : 5250+-100 log g : 4.8+-0.25 vturb : 0.8+-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...-0.18...-2.570.035.86CH
Na I2...-0.72+-0.14...-3.19+-0.14-0.59+-0.143.05+-0.14Na I
Mg I4...0.41+-0.13...-2.20+-0.130.40+-0.135.40+-0.13Mg I
Al I2...-0.3+-0.11...-2.83+-0.11-0.23+-0.113.62+-0.11Al I
Si I1...-0.06...-2.570.034.94Si I
Ca I8...0.2+-0.07...-2.33+-0.070.27+-0.074.01+-0.07Ca I
Sc II1...0.03...-2.570.030.58Sc II
Ti I9...0.26+-0.13...-2.25+-0.130.35+-0.132.70+-0.13Ti I
Ti II12...0.26+-0.12...-2.25+-0.120.35+-0.122.70+-0.12Ti II
Cr I10...-0.12+-0.18...-2.64+-0.18-0.04+-0.183.00+-0.18Cr I
Mn I2...-0.5+-0.06...-3.09+-0.06-0.49+-0.062.34+-0.06Mn I
Mn II3...-0.39+-0.1...-2.98+-0.1-0.38+-0.12.45+-0.1Mn II
Fe IN/A-2.55+-0.16......-2.60+-0.16...4.90+-0.16Fe I
Fe II4-2.6+-0.15-0.05+-0.15...-2.65+-0.15-0.05+-0.154.85+-0.15Fe II
Co I4...0.09+-0.17...-2.53+-0.170.07+-0.172.46+-0.17Co I
Ni I2...-0.43+-0.04...-2.95+-0.04-0.35+-0.043.27+-0.04Ni I
Sr II1...-0.13...-2.65-0.050.22Sr II
Ba II1...-0.71...-3.31-0.71-1.13Ba II

Binary Parameters

Vrad 86.1

Position

Right Ascension : 02 57 30.50 Declination : -08 47 05.0 Galactic Longitude (l) : N/A Galactic Latitude (b) : N/A

Observing Log

Date of Observation JD Facility Resolution S/N Exposure Time Vrad
2005-09 N/A KECKHIRES 36000 75 4800 86.1