HE2020-5228
taken from 2 paper(s):
/J.E.Norris et al.(2013)/
/D.Yong et al.(2013)/
The Most Metal-poor Stars. I. Discovery, Data, and Atmospheric Parameters
Stellar Parameters
| Teff : 6305+-108 | log g : 4 |
Position
| Right Ascension : 20 24 17.00 | Declination : -52 19 03.0 | Galactic Longitude (l) : N/A | Galactic Latitude (b) : N/A |
Observing Log
| Date of Observation | JD | Facility | Resolution | S/N | Exposure Time | Vrad |
|---|
| 2007-6 | 2454273.753 | MIKELCO | 31000-39000 | 100 | -39.9 | N/A |
| 2007-6 | 2454273.775 | MIKELCO | 31000-39000 | 100 | -43 | N/A |
THE MOST METAL-POOR STARS. II. CHEMICAL ABUNDANCES OF 190 METAL-POOR STARS INCLUDING 10 NEW STARS WITH [Fe/H] <-3.
Stellar Parameters
| Teff : 6305 | log g : 3.79 | vturb : 1.4 |
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 |
|---|
| C | N/A | ... | <1.66 | <7.16 | <-1.27 | <1.66 | <7.16 | C |
| N | N/A | ... | <2.30 | <7.20 | <-0.63 | <2.30 | <7.20 | N |
| Mg | 6 | ... | 0.22+-0.1 | 4.9+-0.1 | -2.70+-0.1 | 0.23+-0.1 | 4.9+-0.1 | Mg |
| Si | 1 | ... | 0.1 | 4.68 | -2.83 | 0.10 | 4.68 | Si |
| Ca | 4 | ... | 0.44+-0.12 | 3.85+-0.12 | -2.49+-0.12 | 0.44+-0.12 | 3.85+-0.12 | Ca |
| Sc | 1 | ... | 0.25 | 0.47 | -2.68 | 0.25 | 0.47 | Sc |
| Cr | 2 | ... | -0.23+-0.17 | 2.48+-0.17 | -3.16+-0.17 | -0.23+-0.17 | 2.48+-0.17 | Cr |
| Fe I | 35 | -2.93+-0.14 | ... | 4.57+-0.14 | -2.93+-0.14 | ... | 4.57+-0.14 | Fe I |
| Fe II | 2 | -2.81+-0.25 | ... | 4.69+-0.25 | -2.81+-0.25 | ... | 4.69+-0.25 | Fe II |
| Co | 1 | ... | 0.69 | 2.75 | -2.24 | 0.69 | 2.75 | Co |
| Ni | 1 | ... | -0.04 | 3.25 | -2.97 | -0.04 | 3.25 | Ni |
| Sr | 1 | ... | -0.2 | -0.26 | -3.13 | -0.20 | -0.26 | Sr |
| Ba | 1 | ... | <-0.33 | <-1.08 | <-3.26 | <-0.33 | <-1.08 | Ba |
Position
| Right Ascension : 20 24 17.00 | Declination : -52 19 03.0 | 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 | VLT | N/A | N/A | N/A | N/A |