HE2142-5656
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 : 4939+-36 | log g : 2 |
Position
| Right Ascension : 21 46 20.40 | Declination : -56 42 19.1 | 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 | 2454272.743 | MIKELCO | 31000-39000 | 100 | 103.4 | 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 : 4939 | log g : 1.85 | vturb : 2.1 |
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 | ... | 0.95 | 6.51 | -1.92 | 0.95 | 6.51 | C |
| N | N/A | ... | 0.54 | 5.5 | -2.33 | 0.54 | 5.5 | N |
| Na | 2 | ... | 0.81+-0.17 | 4.18+-0.17 | -2.06+-0.17 | 0.81+-0.17 | 4.18+-0.17 | Na |
| Mg | 3 | ... | 0.33+-0.13 | 5.07+-0.13 | -2.53+-0.13 | 0.34+-0.13 | 5.07+-0.13 | Mg |
| Al | 1 | ... | -0.62 | 2.96 | -3.49 | -0.62 | 2.96 | Al |
| Si | 1 | ... | 0.35 | 4.99 | -2.52 | 0.35 | 4.99 | Si |
| Ca | 7 | ... | 0.3+-0.1 | 3.77+-0.1 | -2.57+-0.1 | 0.30+-0.1 | 3.77+-0.1 | Ca |
| Ti I | 4 | ... | 0.31+-0.12 | 2.39+-0.12 | -2.56+-0.12 | 0.31+-0.12 | 2.39+-0.12 | Ti I |
| Cr | 3 | ... | -0.19+-0.17 | 2.59+-0.17 | -3.05+-0.17 | -0.18+-0.17 | 2.59+-0.17 | Cr |
| Mn | 1 | ... | -0.63 | 1.93 | -3.50 | -0.63 | 1.93 | Mn |
| Fe I | 62 | -2.87+-0.15 | ... | 4.63+-0.15 | -2.87+-0.15 | ... | 4.63+-0.15 | Fe I |
| Fe II | 5 | -2.82+-0.13 | ... | 4.68+-0.13 | -2.82+-0.13 | ... | 4.68+-0.13 | Fe II |
| Co | 4 | ... | 0.18+-0.1 | 2.31+-0.1 | -2.68+-0.1 | 0.19+-0.1 | 2.31+-0.1 | Co |
| Ni | 3 | ... | -0.29+-0.16 | 3.06+-0.16 | -3.16+-0.16 | -0.29+-0.16 | 3.06+-0.16 | Ni |
| Sr | 2 | ... | -0.19+-0.26 | -0.19+-0.26 | -3.06+-0.26 | -0.19+-0.26 | -0.19+-0.26 | Sr |
| Ba | 4 | ... | -0.63+-0.16 | -1.31+-0.16 | -3.49+-0.16 | -0.62+-0.16 | -1.31+-0.16 | Ba |
Position
| Right Ascension : 21 46 20.40 | Declination : -56 42 19.1 | 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 | ... | 0.95 | 6.61 | -1.82 | 1.05 | 6.61 | C |
| Fe | N/A | -2.87 | ... | ... | -2.87 | ... | 4.63 | Fe |
| Ba | N/A | ... | -0.63 | ... | -3.50 | -0.63 | -1.32 | Ba |
Binary Parameters
Position
| Right Ascension : 21 46 20.5 | Declination : -56 42 18 | 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 | 104.24+-0.82 |
| 2014-08-06-180000 | 2456876.25 | SALTHRS | 16000 | N/A | N/A | 104.06+-1.98 |
| 2014-11-06-180000 | 2456968.25 | SALTHRS | 16000 | N/A | N/A | 105.32+-2.25 |