J0815+4729

taken from 1 paper(s):

/D.S.Aguado et al.(2018)/

D.S.Aguado et al.,ApJ, 852, L20, 2018(ADS)

J0815+4729: A Chemically Primitive Dwarf Star in the Galactic Halo Observed with Gran Telescopio Canarias


Stellar Parameters

Teff : 6215+-82 log g : 4.7+-0.5 vturb : 2.0

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...>5.0...>-0.68>5.12>7.75C
CaN/A<-5.4......<-5.38<0.42<0.96Ca
FeN/A<-5.8......<-5.80...<1.70Fe

Binary Parameters

Vrad -95+-23

Position

Right Ascension : 08 15 54.25 Declination : +47 29 47.85 Galactic Longitude (l) : N/A Galactic Latitude (b) : N/A

Observing Log

Date of Observation JD Facility Resolution S/N Exposure Time Vrad
2016-02-13 N/A OSIRISGTC 2500 >200 15840 -95+-23
2016-03-27 N/A OSIRISGTC 2500 >200 15840 -95+-23