HE1204-0744
taken from 2 paper(s):
/J.E.Norris et al.(2013)/
/D.Yong et al.(2013)/
J.E.Norris et al.,ApJ, 762, 25, 2013 (A0290,ADS)
The Most Metal-poor Stars. I. Discovery, Data, and Atmospheric Parameters
Stellar Parameters
| Teff : 6500+-29 | log g : 4.1 |
Observing Log
| Date of Observation | JD | Facility | Resolution | S/N | Exposure Time | Vrad |
|---|
| 2007-6 | 2454273.533 | MIKELCO | 31000-39000 | 100 | -52.3 | N/A |
| 2007-6 | 2454273.556 | MIKELCO | 31000-39000 | 100 | -51.5 | N/A |
| 2007-6 | 2454273.578 | MIKELCO | 31000-39000 | 100 | -45.3 | N/A |
| Galactic Longitude (l) : N/A | Galactic Latitude (b) : N/A | Declination : -080043 | Right Ascension : 120646.2 |
D.Yong et al.,ApJ, 762, 26, 2013 (A0294,ADS)
THE MOST METAL-POOR STARS. II. CHEMICAL ABUNDANCES OF 190 METAL-POOR STARS INCLUDING 10 NEW STARS WITH [Fe/H] <-3.
Stellar Parameters
| Teff : 6500 | log g : 4.3 | vturb : 1.8 |
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 | ... | <1.55 | <7.26 | <-1.17 | <1.54 | <7.26 | C |
| Na | 1 | ... | -0.05 | 3.48 | -2.76 | -0.05 | 3.48 | Na |
| Mg | 1 | ... | -0.07 | 4.82 | -2.78 | -0.07 | 4.82 | Mg |
| Si | 1 | ... | -0.34 | 4.46 | -3.05 | -0.34 | 4.46 | Si |
| Ca | 2 | ... | 0.45+-0.14 | 4.07+-0.14 | -2.27+-0.14 | 0.44+-0.14 | 4.07+-0.14 | Ca |
| Sc | 1 | ... | -0.09 | 0.35 | -2.80 | -0.09 | 0.35 | Sc |
| Cr | 3 | ... | 0.04+-0.27 | 2.97+-0.27 | -2.67+-0.27 | 0.04+-0.27 | 2.97+-0.27 | Cr |
| Fe I | 33 | -2.71+-0.13 | ... | 4.79+-0.13 | -2.71+-0.13 | ... | 4.79+-0.13 | Fe I |
| Fe II | 1 | -1.76 | ... | 5.74 | -1.76 | ... | 5.74 | Fe II |
| Ni | 1 | ... | -0.18 | 3.33 | -2.89 | -0.18 | 3.33 | Ni |
| Sr | 2 | ... | -0.3+-0.19 | -0.14+-0.19 | -3.01+-0.19 | -0.30+-0.19 | -0.14+-0.19 | Sr |
| Ba | 1 | ... | <-0.18 | <-0.71 | <-2.89 | <-0.18 | <-0.71 | Ba |
Observing Log
| Date of Observation | JD | Facility | Resolution | S/N | Exposure Time | Vrad |
|---|
| N/A | VLT | N/A | N/A | N/A | N/A |
| Galactic Longitude (l) : N/A | Galactic Latitude (b) : N/A | Declination : -080044.1 | Right Ascension : 120646.2 |