G69-18

taken from 1 paper(s):

/J.Melendez and J. G. Cohen(2007)/

J.Melendez et al.,ApJ, 659, L25, 2007(ADS)

Magnesium Isotopes in Metal-poor Dwarfs:The Rise of AGB Stars and the Formation Timescale of the Galactic Halo


Stellar Parameters

Teff : 4480 log g : 4.75 vturb : 0.3

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-2.60......-2.60...4.90Fe

Position

Right Ascension : 00 44 32.01 Declination : +29 54 25.7 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 KECKHIRES 100000 90-280 N/A N/A