LAMOSTJ042245.27+180824.3

taken from 1 paper(s):

/M.Jeong et al.(2023)/


M.Jeong et al.,ApJ, 948, 38, 2023(ADS)

Search for Extremely Metal-poor Stars with Gemini-N/Graces. I. Chemical-abundance Analysis


Stellar Parameters

Teff : 5027+-48 log g : 2.07+0.17-0.15 vturb : 2.3

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
CN/A...<+0.11...<-3.22<0.11<5.21C
Na I2...-0.46+-0.082.45+-0.08-3.79+-0.08-0.46+-0.082.45+-0.08Na I
Mg I4...+0.18+-0.044.45+-0.04-3.15+-0.040.18+-0.044.45+-0.04Mg I
Ca I5...+0.21+-0.053.22+-0.05-3.12+-0.050.21+-0.053.22+-0.05Ca I
Cr I2...-0.36+-0.081.95+-0.08-3.69+-0.08-0.36+-0.081.95+-0.08Cr I
Fe I54-3.33+-0.060.00+-0.064.17+-0.06-3.33+-0.060.00+-0.064.17+-0.06Fe I
Ni I2...+0.23+-0.083.12+-0.08-3.10+-0.080.23+-0.083.12+-0.08Ni I
Ba II2...-1.15+-0.20-2.30+-0.20-4.48+-0.20-1.15+-0.20-2.30+-0.20Ba II

Binary Parameters

Vrad +76.7

Position

Right Ascension : 04 22 45.27 Declination : +18 08 24.3 Galactic Longitude (l) : N/A Galactic Latitude (b) : N/A

Observing Log

Date of Observation JD Facility Resolution S/N Exposure Time Vrad
2018-09-05 N/A GEMINIGRACES 45000 76 5250 +76.7