BD+20_2030
taken from 5 paper(s):
/E.Arnone et al.(2005)/
/A.Hosford et al.(2009)/
/J.A.Rich and A. M. Boesgaard(2009)/
/A.M.Boesgaard et al.(2011)/
/C.Sneden et al.(2023)/
Mg abundances in metal-poor halo stars as a tracer of early Galactic mixing
Stellar Parameters
| Teff : 6200 | log g : 3.9+-0.2 | vturb : 1.6+-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 |
|---|
| Mg I | 3 | -2.39+-0.06 | 0.29+-0.06 | ... | -2.41+-0.06 | 0.27+-0.06 | 5.19+-0.06 | Mg I |
| Ca I | 3 | -2.23+-0.04 | ... | ... | -2.21+-0.04 | 0.47+-0.04 | 4.13+-0.04 | Ca I |
| Ti I | 1 | -2.16 | ... | ... | -2.09 | 0.59 | 2.86 | Ti I |
| Cr I | 2 | -2.62+-0.04 | ... | ... | -2.59+-0.04 | 0.09+-0.04 | 3.05+-0.04 | Cr I |
| Fe I | 16 | -2.68+-0.01 | ... | ... | -2.68+-0.01 | ... | 4.82+-0.01 | Fe I |
| Fe II | 1 | -2.68 | ... | ... | -2.68 | ... | 4.82 | Fe II |
Position
| Right Ascension : 08 16 07.35 | Declination : +19 41 51.4 | 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 | ANGLO | 40000 | >100 | N/A | N/A |
Lithium abundances of halo dwarfs based on excitation temperature. I. Local thermodynamic equilibrium
Stellar Parameters
| Teff : 6208+-104 | log g : 4.46+-0.14 | vturb : 1.00 |
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 I | N/A | ... | ... | 2.11+-0.068 | -1.15+-0.068 | 1.48+-0.068 | 2.11+-0.068 | Li I |
| Fe | N/A | -2.63 | ... | ... | -2.63 | ... | 4.87 | Fe |
| Fe I | 98 | -2.62 | ... | ... | -2.62 | ... | 4.88 | Fe I |
Position
| Right Ascension : 08 16 07.35 | Declination : +19 41 51.4 | 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 | N/A | ANGLO | 43000 | 95 | N/A | N/A |
BERYLLIUM, OXYGEN, AND IRON ABUNDANCES IN EXTREMELY METAL-DEFICIENT STARS
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 |
|---|
| Be II | N/A | ... | ... | -1.23+-0.12 | -2.61+-0.12 | 0.16+-0.12 | -1.23+-0.12 | Be II |
| OH | N/A | -2.06+-0.14 | ... | ... | -1.88+-0.14 | 0.89+-0.14 | 6.81+-0.14 | OH |
| Fe | N/A | -2.77+-0.1 | ... | ... | -2.77+-0.1 | ... | 4.73+-0.1 | Fe |
Position
| Right Ascension : 08 16 07.35 | Declination : +19 41 51.4 | Galactic Longitude (l) : N/A | Galactic Latitude (b) : N/A |
Observing Log
| Date of Observation | JD | Facility | Resolution | S/N | Exposure Time | Vrad |
|---|
| 2006-01-02 | N/A | KECKHIRES | 48000 | 122 | 3600 | N/A |
Beryllium and Alpha-element Abundances in a Large Sample of Metal-poor Stars
Stellar Parameters
| Teff : 5978+-100 | log g : 3.61+-0.2 | vturb : 1.5+-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 |
|---|
| Be | N/A | ... | +0.12+-0.15 | -1.23+-0.12 | -2.61+-0.12 | 0.16+-0.15 | -1.23+-0.12 | Be |
| O | N/A | -2.06+-0.22 | +0.71+-0.24 | ... | -2.12+-0.22 | 0.65+-0.24 | 6.57+-0.22 | O |
| Mg | N/A | -2.29+-0.07 | ... | ... | -2.31+-0.07 | 0.46+-0.07 | 5.29+-0.07 | Mg |
| Ti | N/A | -2.24+-0.09 | ... | ... | -2.17+-0.09 | 0.60+-0.09 | 2.78+-0.09 | Ti |
| Fe | N/A | -2.77+-0.09 | ... | ... | -2.77+-0.09 | ... | 4.73+-0.09 | Fe |
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 | KECKHIRES | 42000 | N/A | N/A | N/A |
Iron-peak Element Abundances in Warm Very Metal-poor Stars
Stellar Parameters
| Teff : 6000 | log g : 3.5 | 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 |
|---|
| Mg I | 6 | ... | 0.52+-0.14 | ... | -2.39+-0.14 | 0.52+-0.14 | 5.21+-0.14 | Mg I |
| Ca I | 17 | ... | 0.57+-0.06 | ... | -2.34+-0.06 | 0.57+-0.06 | 4.00+-0.06 | Ca I |
| Ca II | 2 | ... | 0.66+-0.01 | ... | -2.25+-0.01 | 0.66+-0.01 | 4.09+-0.01 | Ca II |
| Sc II | 12 | ... | 0.08+-0.05 | ... | -2.83+-0.05 | 0.08+-0.05 | 0.32+-0.05 | Sc II |
| Ti I | 7 | ... | 0.49+-0.1 | ... | -2.42+-0.1 | 0.49+-0.1 | 2.53+-0.1 | Ti I |
| Ti II | 66 | ... | 0.33+-0.15 | ... | -2.58+-0.15 | 0.33+-0.15 | 2.37+-0.15 | Ti II |
| V II | 7 | ... | 0.13+-0.07 | ... | -2.78+-0.07 | 0.13+-0.07 | 1.15+-0.07 | V II |
| Cr I | 7 | ... | -0.1+-0.1 | ... | -3.01+-0.1 | -0.10+-0.1 | 2.63+-0.1 | Cr I |
| Mn I | 3 | ... | -0.56+-0.02 | ... | -3.47+-0.02 | -0.56+-0.02 | 1.96+-0.02 | Mn I |
| Mn II | 4 | ... | -0.32+-0.02 | ... | -3.23+-0.02 | -0.32+-0.02 | 2.20+-0.02 | Mn II |
| Fe | N/A | -2.91 | ... | ... | -2.91 | ... | 4.59 | Fe |
| Fe I | 138 | -2.95+-0.1 | ... | ... | -2.95+-0.1 | ... | 4.55+-0.1 | Fe I |
| Fe II | 17 | -2.87+-0.12 | ... | ... | -2.87+-0.12 | ... | 4.63+-0.12 | Fe II |
| Co I | 25 | ... | 0.18+-0.06 | ... | -2.73+-0.06 | 0.18+-0.06 | 2.26+-0.06 | Co I |
| Ni I | 44 | ... | -0.05+-0.06 | ... | -2.96+-0.06 | -0.05+-0.06 | 3.26+-0.06 | Ni I |
| Cu I | 2 | ... | -0.79+-0.01 | ... | -3.70+-0.01 | -0.79+-0.01 | 0.49+-0.01 | Cu I |
| Zn I | 2 | ... | 0.51+-0.04 | ... | -2.40+-0.04 | 0.51+-0.04 | 2.16+-0.04 | Zn I |
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 | KECKHIRES | 42000 | 106 | N/A | N/A |