HE2344-2800
taken from 4 paper(s):
/E.Carretta et al.(2002)/
/J.G.Cohen et al.(2002)/
/J.G.Cohen et al.(2004)/
/J.G.Cohen et al.(2013)/
STELLAR ARCHAEOLOGY: A KECK PILOT PROGRAM ON EXTREMELY METAL-POOR STARS FROM THE HAMBURG/ESO SURVEY. II. ABUNDANCE ANALYSIS
Stellar Parameters
| Teff : 6625 | log g : 4.30 | vturb : 1.42 |
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 | 4 | ... | 0.20+-0.21 | ... | -2.35+-0.21 | 0.17+-0.21 | 5.25+-0.21 | Mg I |
| Al I | 2 | ... | -0.57+-0.13 | ... | -3.08+-0.13 | -0.56+-0.13 | 3.37+-0.13 | Al I |
| Ca I | 5 | ... | 0.29+-0.09 | ... | -2.22+-0.09 | 0.30+-0.09 | 4.12+-0.09 | Ca I |
| Sc II | 3 | ... | 0.12+-0.18 | ... | -2.47+-0.18 | 0.05+-0.18 | 0.68+-0.18 | Sc II |
| Ti I | 5 | ... | 0.65+-0.02 | ... | -1.84+-0.02 | 0.68+-0.02 | 3.11+-0.02 | Ti I |
| Ti II | 15 | ... | 0.53+-0.05 | ... | -1.96+-0.05 | 0.56+-0.05 | 2.99+-0.05 | Ti II |
| Cr I | 3 | ... | 0.23+-0.11 | ... | -2.27+-0.11 | 0.25+-0.11 | 3.37+-0.11 | Cr I |
| Mn I | 3 | ... | 0.12+-0.14 | ... | -2.45+-0.14 | 0.07+-0.14 | 2.98+-0.14 | Mn I |
| Fe I | 44 | -2.53+-0.10 | ... | ... | -2.52+-0.10 | ... | 4.98+-0.10 | Fe I |
| Fe II | 4 | -2.43+-0.08 | ... | ... | -2.42+-0.08 | ... | 5.08+-0.08 | Fe II |
| Sr II | 2 | ... | -0.15+-0.12 | ... | -2.65+-0.12 | -0.13+-0.12 | 0.22+-0.12 | Sr II |
| Ba II | 1 | ... | -0.55 | ... | -3.13 | -0.61 | -0.95 | Ba II |
Position
| Right Ascension : 23 46 44.36 | Declination : -27 44 10.7 | Galactic Longitude (l) : N/A | Galactic Latitude (b) : N/A |
Observing Log
| Date of Observation | JD | Facility | Resolution | S/N | Exposure Time | Vrad |
|---|
| 2000-09 | N/A | KECKHIRES | 45000 | N/A | N/A | N/A |
STELLAR ARCHAEOLOGY: A KECK PILOT PROGRAM ON EXTREMELY METAL-POOR STARS FROM THE HAMBURG/ESO SURVEY. I. STELLAR PARAMETERS
Stellar Parameters
Binary Parameters
Position
| Right Ascension : 23 46 44.36 | Declination : -27 44 10.7 | Galactic Longitude (l) : N/A | Galactic Latitude (b) : N/A |
Observing Log
| Date of Observation | JD | Facility | Resolution | S/N | Exposure Time | Vrad |
|---|
| 2000-09 | N/A | KECKHIRES | 45000 | 125 | 9600 | |
Abundances In Very Metal-Poor Dwarf Stars
Stellar Parameters
| Teff : 6625 | log g : 4.3 | vturb : 1.4 |
Position
| Right Ascension : 23 46 44.36 | Declination : -27 44 10.7 | Galactic Longitude (l) : N/A | Galactic Latitude (b) : N/A |
Observing Log
Normal and Outlying Populations of the Milky Way Stellar Halo at [Fe/H] <-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 |
|---|
| CH | 1 | ... | <1.05 | ... | <-1.47 | <1.26 | <6.96 | CH |
| NH | 1 | ... | <1.1 | ... | <-1.48 | <1.25 | <6.35 | NH |
| Na I | 2 | ... | -0.41+-0.17 | ... | -3.01+-0.17 | -0.28+-0.17 | 3.23+-0.17 | Na I |
| Mg I | 3 | ... | 0.15+-0.03 | ... | -2.59+-0.03 | 0.14+-0.03 | 5.01+-0.03 | Mg I |
| Al I | 2 | ... | -0.37+-0.09 | ... | -3.03+-0.09 | -0.30+-0.09 | 3.42+-0.09 | Al I |
| Si I | 1 | ... | -0.35 | ... | -2.99 | -0.26 | 4.52 | Si I |
| Ca I | 7 | ... | 0.15+-0.1 | ... | -2.51+-0.1 | 0.22+-0.1 | 3.83+-0.1 | Ca I |
| Sc II | 3 | ... | -0.23+-0.12 | ... | -2.96+-0.12 | -0.23+-0.12 | 0.19+-0.12 | Sc II |
| Ti I | 1 | ... | 0.69 | ... | -1.95 | 0.78 | 3.00 | Ti I |
| Ti II | 16 | ... | 0.5+-0.1 | ... | -2.14+-0.1 | 0.59+-0.1 | 2.81+-0.1 | Ti II |
| V II | 1 | ... | 0.34 | ... | -2.27 | 0.46 | 1.66 | V II |
| Cr I | 4 | ... | 0.08+-0.03 | ... | -2.57+-0.03 | 0.16+-0.03 | 3.07+-0.03 | Cr I |
| Mn I | 2 | ... | -0.01+-0.03 | ... | -2.73+-0.03 | 0.00+-0.03 | 2.70+-0.03 | Mn I |
| Mn II | 2 | ... | 0.46+-0.33 | ... | -2.26+-0.33 | 0.47+-0.33 | 3.17+-0.33 | Mn II |
| Fe I | 53 | -2.68+-0.13 | ... | ... | -2.73+-0.13 | ... | 4.77+-0.13 | Fe I |
| Fe II | 10 | -2.67+-0.13 | 0.01+-0.13 | ... | -2.72+-0.13 | 0.01+-0.13 | 4.78+-0.13 | Fe II |
| Co I | 3 | ... | 0.3+-0.19 | ... | -2.45+-0.19 | 0.28+-0.19 | 2.54+-0.19 | Co I |
| Ni I | 2 | ... | 0.31+-0.06 | ... | -2.34+-0.06 | 0.39+-0.06 | 3.88+-0.06 | Ni I |
| Cu I | 1 | ... | -0.66 | ... | -3.32 | -0.59 | 0.87 | Cu I |
| Zn I | 2 | ... | 0.9+-0.12 | ... | -1.74+-0.12 | 0.99+-0.12 | 2.82+-0.12 | Zn I |
| Sr II | 2 | ... | -0.38+-0.1 | ... | -3.03+-0.1 | -0.30+-0.1 | -0.16+-0.1 | Sr II |
| Ba II | 2 | ... | -0.42+-0.12 | ... | -3.15+-0.12 | -0.42+-0.12 | -0.97+-0.12 | Ba II |
Binary Parameters
Position
| Right Ascension : 23 46 44.36 | Declination : -27 44 10.7 | Galactic Longitude (l) : N/A | Galactic Latitude (b) : N/A |
Observing Log
| Date of Observation | JD | Facility | Resolution | S/N | Exposure Time | Vrad |
|---|
| 2002-09 | N/A | KECKHIRES | 36000 | 70 | 9600 | -135.8 |
| 2004-10 | N/A | KECKHIRES | 36000 | 140 | 7200 | -139.7 |