P257.3131+12.8939

taken from 1 paper(s):

/C.L.Kielty et al.(2021)/

C.L.Kielty et al.,MNRAS, 506, 1438, 2021(ADS)

The Pristine survey - XII. Gemini-GRACES chemo-dynamical study of newly discovered extremely metal-poor stars in the Galaxy


Stellar Parameters

Teff : 5149+-105 log g : 1.78+-0.10

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
LiN/A......<0.66<-2.60<0.29<0.66Li
O IN/A...<0.95...<-1.94<0.95<6.75O I
Na I2...0.04+-0.41...-2.85+-0.410.04+-0.413.39+-0.41Na I
Mg I4...0.59+-0.21...-2.30+-0.210.59+-0.215.30+-0.21Mg I
K I1...0.50+-0.25...-2.39+-0.250.50+-0.252.64+-0.25K I
Ca I8...0.38+-0.22...-2.51+-0.220.38+-0.223.83+-0.22Ca I
Ca II3...0.37+-0.23...-2.52+-0.230.37+-0.233.82+-0.23Ca II
Sc IIN/A...<0.90...<-1.99<0.90<1.16Sc II
Ti I3...0.39+-0.25...-2.50+-0.250.39+-0.252.45+-0.25Ti I
Ti II5...0.22+-0.22...-2.67+-0.220.22+-0.222.28+-0.22Ti II
Cr I3...-0.02+-0.26...-2.91+-0.26-0.02+-0.262.73+-0.26Cr I
Mn IN/A...<0.15...<-2.74<0.15<2.69Mn I
Fe66-2.89+-0.19......-2.89+-0.19...4.61+-0.19Fe
Fe I63-2.85+-0.07......-2.85+-0.07...4.65+-0.07Fe I
Fe II3-3.22+-0.13......-3.22+-0.13...4.28+-0.13Fe II
Ni I2...0.07+-0.31...-2.82+-0.310.07+-0.313.40+-0.31Ni I
Cu IN/A...<0.50...<-2.39<0.50<1.80Cu I
Zn IN/A...<0.75...<-2.14<0.75<2.42Zn I
Y IIN/A...<0.20...<-2.69<0.20<-0.48Y II
Zr IIN/A...<1.75...<-1.14<1.75<1.44Zr II
Ba II2...-0.40+-0.26...-3.29+-0.26-0.40+-0.26-1.11+-0.26Ba II
La IIN/A...<1.15...<-1.74<1.15<-0.64La II
Nd IIN/A...<1.35...<-1.54<1.35<-0.12Nd II
Eu IIN/A...<1.40...<-1.49<1.40<-0.97Eu II

Binary Parameters

Vrad -129.4+-0.4

Position

Right Ascension : 17 09 15.14 Declination : +12 53 38.04 Galactic Longitude (l) : N/A Galactic Latitude (b) : N/A

Observing Log

Date of Observation JD Facility Resolution S/N Exposure Time Vrad
2019-03-29 N/A GEMINIGRACES 65000 53 6600 -129.4+-0.4