HE2202-4831
taken from 3 paper(s):
/J.E.Norris et al.(2013)/
/D.Yong et al.(2013)/
/A.Arentsen et al.(2019)/
The Most Metal-poor Stars. I. Discovery, Data, and Atmospheric Parameters
Stellar Parameters
| Teff : 5331+-44 | log g : 2.4 |
Position
| Right Ascension : 22 06 06.00 | Declination : -48 16 53.0 | 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 | 2454272.755 | MIKELCO | 31000-39000 | 100 | 56 | N/A |
| 2007-6 | 2454272.777 | MIKELCO | 31000-39000 | 100 | 56.4 | 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 : 5331 | log g : 2.95 | vturb : 1.2 |
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 | ... | 2.41 | 8.06 | -0.37 | 2.41 | 8.06 | C |
| Na | 1 | ... | 1.44 | 4.9 | -1.34 | 1.44 | 4.9 | Na |
| Mg | 2 | ... | 0.12+-0.17 | 4.94+-0.17 | -2.66+-0.17 | 0.12+-0.17 | 4.94+-0.17 | Mg |
| Ca | 6 | ... | 0.17+-0.13 | 3.72+-0.13 | -2.62+-0.13 | 0.16+-0.13 | 3.72+-0.13 | Ca |
| Ti I | 2 | ... | 0.21+-0.17 | 2.38+-0.17 | -2.57+-0.17 | 0.21+-0.17 | 2.38+-0.17 | Ti I |
| Cr | 2 | ... | 0.08+-0.14 | 2.93+-0.14 | -2.71+-0.14 | 0.07+-0.14 | 2.93+-0.14 | Cr |
| Fe I | 35 | -2.78+-0.15 | ... | 4.72+-0.15 | -2.78+-0.15 | ... | 4.72+-0.15 | Fe I |
| Fe II | 3 | -2.55+-0.17 | ... | 4.95+-0.17 | -2.55+-0.17 | ... | 4.95+-0.17 | Fe II |
| Co | 1 | ... | 0.21 | 2.42 | -2.57 | 0.21 | 2.42 | Co |
| Ni | 1 | ... | -0.07 | 3.37 | -2.85 | -0.07 | 3.37 | Ni |
| Sr | 1 | ... | -0.85 | -0.76 | -3.63 | -0.85 | -0.76 | Sr |
| Ba | 2 | ... | -1.28+-0.21 | -1.88+-0.21 | -4.06+-0.21 | -1.28+-0.21 | -1.88+-0.21 | Ba |
Position
| Right Ascension : 22 06 06.00 | Declination : -48 16 53.0 | 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 |
Binarity among CEMP-no stars: an indication of multiple formation pathways?
Stellar Parameters
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 | ... | 2.41 | 8.08 | -0.35 | 2.43 | 8.08 | C |
| Fe | N/A | -2.78 | ... | ... | -2.78 | ... | 4.72 | Fe |
| Ba | N/A | ... | -1.28 | ... | -4.06 | -1.28 | -1.88 | Ba |
Binary Parameters
Position
| Right Ascension : 22 06 06.0 | Declination : -48 16 53 | Galactic Longitude (l) : N/A | Galactic Latitude (b) : N/A |
Observing Log
| Date of Observation | JD | Facility | Resolution | S/N | Exposure Time | Vrad |
|---|
| 2013-11-12-180000 | 2456609.25 | SALTHRS | 16000 | N/A | N/A | 56.58+-1.2 |
| 2014-11-28-180000 | 2456990.25 | SALTHRS | 16000 | N/A | N/A | 57.5+-2 |