CS22950-173
taken from 4 paper(s):
/G.W.Preston and C. Sneden(2000)/
/L.Sbordone et al.(2010)/
/M.Spite et al.(2014)/
/A.M.MatasPinto et al.(2021)/
What Are These Blue Metal-Poor Stars?
Stellar Parameters
| Teff : 6800 | log g : 4.50 | vturb : 1.75 |
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 |
|---|
| Mg I | 3 | ... | 0.38 | ... | -2.14 | 0.36 | 5.46 | Mg I |
| Ca I | 3 | ... | 0.18 | ... | -2.30 | 0.20 | 4.04 | Ca I |
| Sc II | 1 | ... | -0.01 | ... | -2.49 | 0.01 | 0.66 | Sc II |
| Ti II | 8 | ... | 0.53 | ... | -1.90 | 0.60 | 3.05 | Ti II |
| Cr I | 1 | ... | -0.08 | ... | -2.55 | -0.05 | 3.09 | Cr I |
| Mn I | 1 | ... | -0.13 | ... | -2.67 | -0.17 | 2.76 | Mn I |
| Fe | 14 | -2.50 | ... | ... | -2.50 | ... | 5.00 | Fe |
| Sr II | 2 | ... | -0.76 | ... | -3.16 | -0.66 | -0.29 | Sr II |
| Ba II | 1 | ... | -0.04 | ... | -2.59 | -0.09 | -0.41 | Ba II |
Binary Parameters
| Binarity | Negative |
| Vrad | 69.4 |
Position
| Right Ascension : 20 35 31.20 | Declination : -15 53 30.0 | 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 | 2448813.691 | FRUTTI | 30000 | 10 | N/A | 69.9 |
| N/A | 2448824.701 | FRUTTI | 30000 | 10 | N/A | 70.3 |
| N/A | 2449192.673 | FRUTTI | 30000 | 10 | N/A | 69.2 |
| N/A | 2449209.661 | FRUTTI | 30000 | 10 | N/A | 69.0 |
| N/A | 2449575.641 | FRUTTI | 30000 | 10 | N/A | 70.3 |
| N/A | 2449579.591 | FRUTTI | 30000 | 10 | N/A | 69.7 |
| N/A | 2449934.596 | FRUTTI | 30000 | 10 | N/A | 67.5 |
| N/A | 2449944.608 | FRUTTI | 30000 | 10 | N/A | 69.7 |
| N/A | 2450290.593 | FRUTTI | 30000 | 10 | N/A | 67.7 |
| N/A | 2450292.613 | FRUTTI | 30000 | 10 | N/A | 69.8 |
| N/A | 2450616.753 | FRUTTI | 30000 | 10 | N/A | 69.3 |
| N/A | 2450997.747 | FRUTTI | 30000 | 10 | N/A | 69.6 |
| N/A | 2451002.634 | FRUTTI | 30000 | 10 | N/A | 69.2 |
| N/A | 2451035.588 | FRUTTI | 30000 | 10 | N/A | 70.7 |
The metal-poor end of the Spite plateau. I. Stellar parameters, metallicities, and lithium abundances
Stellar Parameters
| Teff : 6335 | log g : 4.20 | 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 |
|---|
| Li | N/A | ... | ... | 2.199 | -1.06 | 1.72 | 2.199 | Li |
| Fe I | N/A | ... | ... | 4.72+-0.121 | -2.78+-0.121 | ... | 4.72+-0.121 | Fe I |
| Fe II | N/A | ... | ... | 4.76+-0.111 | -2.74+-0.111 | ... | 4.76+-0.111 | Fe II |
Binary Parameters
Position
| Right Ascension : 20 35 31.20 | Declination : -15 53 30.0 | Galactic Longitude (l) : N/A | Galactic Latitude (b) : N/A |
Observing Log
| Date of Observation | JD | Facility | Resolution | S/N | Exposure Time | Vrad |
|---|
| 2006-04-23 | 2453848.83688352 | VLT | 40000 | 92 | 3600 | 69 |
The low Sr/Ba ratio on some extremely metal-poor stars
Stellar Parameters
| Teff : 6615+-100 | log g : 4.1+-0.2 | vturb : 1.4+-0.2 |
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 |
|---|
| Fe | N/A | -2.60+-0.10 | ... | ... | -2.60+-0.10 | ... | 4.90+-0.10 | Fe |
| Sr II | 2 | -3.24 | ... | ... | -3.14 | -0.54 | -0.27 | Sr II |
| Ba II | 2 | -3.13 | -0.53 | ... | -3.18 | -0.58 | -1.00 | Ba II |
Binary Parameters
Position
| Right Ascension : 20 35 31.20 | Declination : -15 53 30.0 | Galactic Longitude (l) : N/A | Galactic Latitude (b) : N/A |
Observing Log
| Date of Observation | JD | Facility | Resolution | S/N | Exposure Time | Vrad |
|---|
| 2453848.84 | VLT | 40000 | 110 | N/A | 68.5 |
The metal-poor end of the Spite plateau. II. Chemical and dynamical investigation
Stellar Parameters
| Teff : 6320 | log g : 4.3+-0.3 | 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 |
|---|
| Li | N/A | ... | ... | 2.23+-0.1 | -1.03+-0.1 | 1.68+-0.1 | 2.23+-0.1 | Li |
| C | N/A | ... | ... | <6.02 | <-2.41 | <0.30 | <6.02 | C |
| Na | N/A | ... | -0.56 | 3.01 | -3.23 | -0.52 | 3.01 | Na |
| Mg | 6 | ... | 0.18+-0.03 | 5.02+-0.03 | -2.58+-0.03 | 0.13+-0.03 | 5.02+-0.03 | Mg |
| Al | N/A | ... | -0.18 | 3.59 | -2.86 | -0.15 | 3.59 | Al |
| Si | N/A | ... | -0.03 | 4.79 | -2.72 | -0.01 | 4.79 | Si |
| Ca I | 4 | ... | 0.31+-0.02 | 3.94+-0.02 | -2.40+-0.02 | 0.31+-0.02 | 3.94+-0.02 | Ca I |
| Ca II | N/A | ... | ... | 3.99 | -2.35 | 0.36 | 3.99 | Ca II |
| Sc II | N/A | ... | 0.04 | 0.44 | -2.71 | 0.00 | 0.44 | Sc II |
| Ti II | 10 | ... | 0.21+-0.03 | 2.41+-0.03 | -2.54+-0.03 | 0.17+-0.03 | 2.41+-0.03 | Ti II |
| Cr | 5 | ... | -0.33+-0.03 | 2.61+-0.03 | -3.03+-0.03 | -0.32+-0.03 | 2.61+-0.03 | Cr |
| Mn | N/A | ... | -0.81 | 1.86 | -3.57 | -0.86 | 1.86 | Mn |
| Fe | N/A | -2.71 | ... | ... | -2.71 | ... | 4.79 | Fe |
| Co | 3 | ... | 0.15+-0.11 | 2.37+-0.11 | -2.62+-0.11 | 0.09+-0.11 | 2.37+-0.11 | Co |
| Ni | 3 | ... | -0.06+-0.17 | 3.47+-0.17 | -2.75+-0.17 | -0.04+-0.17 | 3.47+-0.17 | Ni |
| Sr | N/A | ... | -0.74 | -0.52 | -3.39 | -0.68 | -0.52 | Sr |
| Ba | N/A | ... | -0.86 | -1.39 | -3.57 | -0.86 | -1.39 | Ba |
Position
| Right Ascension : | Declination : | 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 | 40000 | N/A | N/A | N/A |