HE0253-1331
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 : 6474+-41 | log g : 4.1 |
Position
| Right Ascension : 02 56 06.60 | Declination : -13 19 27.0 | Galactic Longitude (l) : N/A | Galactic Latitude (b) : N/A |
Observing Log
| Date of Observation | JD | Facility | Resolution | S/N | Exposure Time | Vrad |
|---|
| 2007-11 | 2454435.965 | KECKHIRES | 48000 | 100 | 41.4 | N/A |
| 2007-11 | 2454436.93 | KECKHIRES | 48000 | 100 | 24.8 | N/A |
| 2007-11 | 2454436.943 | KECKHIRES | 48000 | 100 | 25.5 | 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 : 6474 | log g : 4.34 | vturb : 1.5 |
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 | ... | <1.64 | <7.06 | <-1.37 | <1.64 | <7.06 | C |
| Na | 2 | ... | -0.17+-0.16 | 3.06+-0.16 | -3.18+-0.16 | -0.17+-0.16 | 3.06+-0.16 | Na |
| Mg | 4 | ... | 0.25+-0.11 | 4.84+-0.11 | -2.76+-0.11 | 0.25+-0.11 | 4.84+-0.11 | Mg |
| Al | 2 | ... | -0.61+-0.15 | 2.83+-0.15 | -3.62+-0.15 | -0.61+-0.15 | 2.83+-0.15 | Al |
| Si | 1 | ... | 0.07 | 4.57 | -2.94 | 0.07 | 4.57 | Si |
| Ca | 3 | ... | 0.58+-0.12 | 3.91+-0.12 | -2.43+-0.12 | 0.58+-0.12 | 3.91+-0.12 | Ca |
| Sc | 1 | ... | 0.58 | 0.72 | -2.43 | 0.58 | 0.72 | Sc |
| Cr | 3 | ... | -0.08+-0.13 | 2.55+-0.13 | -3.09+-0.13 | -0.08+-0.13 | 2.55+-0.13 | Cr |
| Fe I | 47 | -3.01+-0.12 | ... | 4.49+-0.12 | -3.01+-0.12 | ... | 4.49+-0.12 | Fe I |
| Co | 1 | ... | 0.44 | 2.42 | -2.57 | 0.44 | 2.42 | Co |
| Ni | 1 | ... | 0.13 | 3.34 | -2.88 | 0.13 | 3.34 | Ni |
| Sr | 2 | ... | 0.41+-0.26 | 0.27+-0.26 | -2.60+-0.26 | 0.41+-0.26 | 0.27+-0.26 | Sr |
| Ba | 1 | ... | 0.33 | -0.5 | -2.68 | 0.33 | -0.5 | Ba |
Position
| Right Ascension : 02 56 06.60 | Declination : -13 19 27.0 | 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 |