SAGA_UMaII_000014
Original Names
20 in L.C.Vargas+,ApJ, 767, 134, 2013UMaII-S1 in A.Frebel+,ApJ, 708, 560, 2010
taken from 2 paper(s):
/A.Frebel et al.(2010)/
/L.C.Vargas et al.(2013)/
High-Resolution Spectroscopy of Extremely Metal-Poor Stars in the Least Evolved Galaxies: Ursa Major II and Coma Berenices
Stellar Parameters
| Teff : 4850 | log g : 1.4 | vturb : 2.0 |
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 | 2 | -2.33+-0.20 | 0.77+-0.20 | 6.06+-0.20 | -2.37+-0.20 | 0.78+-0.20 | 6.06+-0.20 | C |
| O I | 1 | <-1.36 | <1.74 | <7.30 | <-1.39 | <1.76 | <7.30 | O I |
| Na I | 2 | -3.11+-0.30 | -0.01+-0.30 | 3.06+-0.30 | -3.18+-0.30 | -0.03+-0.30 | 3.06+-0.30 | Na I |
| Mg I | 5 | -2.66+-0.11 | 0.44+-0.11 | 4.87+-0.11 | -2.73+-0.11 | 0.42+-0.11 | 4.87+-0.11 | Mg I |
| Al I | 1 | <-1.14 | <1.96 | <5.23 | <-1.22 | <1.93 | <5.23 | Al I |
| Si I | 1 | <-1.74 | <1.36 | <5.77 | <-1.74 | <1.41 | <5.77 | Si I |
| Ca I | 9 | -2.90+-0.30 | 0.20+-0.30 | 3.41+-0.30 | -2.93+-0.30 | 0.22+-0.30 | 3.41+-0.30 | Ca I |
| Sc II | 3 | -2.85+-0.18 | 0.25+-0.18 | 0.20+-0.18 | -2.95+-0.18 | 0.20+-0.18 | 0.20+-0.18 | Sc II |
| Ti I | 6 | -2.83+-0.24 | 0.27+-0.24 | 2.07+-0.24 | -2.88+-0.24 | 0.27+-0.24 | 2.07+-0.24 | Ti I |
| Ti II | 15 | -2.88+-0.18 | 0.22+-0.18 | 2.02+-0.18 | -2.93+-0.18 | 0.22+-0.18 | 2.02+-0.18 | Ti II |
| V I | 1 | <-2.42 | <0.68 | <1.58 | <-2.35 | <0.80 | <1.58 | V I |
| Cr I | 4 | -3.36+-0.09 | -0.26+-0.09 | 2.28+-0.09 | -3.36+-0.09 | -0.21+-0.09 | 2.28+-0.09 | Cr I |
| Mn I | 2 | -3.12+-0.10 | -0.02+-0.10 | 2.27+-0.10 | -3.16+-0.10 | -0.01+-0.10 | 2.27+-0.10 | Mn I |
| Fe I | 74 | -3.10+-0.16 | ... | 4.35+-0.16 | -3.15+-0.16 | ... | 4.35+-0.16 | Fe I |
| Fe II | 7 | -3.10+-0.13 | 0.00+-0.13 | 4.35+-0.13 | -3.15+-0.13 | 0.00+-0.13 | 4.35+-0.13 | Fe II |
| Co I | 1 | <-2.15 | <0.95 | <2.77 | <-2.22 | <0.93 | <2.77 | Co I |
| Ni I | 3 | -2.79+-0.40 | 0.31+-0.40 | 3.44+-0.40 | -2.78+-0.40 | 0.37+-0.40 | 3.44+-0.40 | Ni I |
| Cu I | 1 | <-2.37 | <0.73 | <1.84 | <-2.35 | <0.80 | <1.84 | Cu I |
| Zn I | 1 | -2.25+-0.20 | 0.85+-0.20 | 2.35a+-0.20 | -2.21+-0.20 | 0.94+-0.20 | 2.35a+-0.20 | Zn I |
| Sr II | 1 | -3.82+-0.30 | -0.72+-0.30 | -0.90+-0.30 | -3.77+-0.30 | -0.62+-0.30 | -0.90+-0.30 | Sr II |
| Y II | 1 | <-3.36 | <-0.26 | <-1.15 | <-3.36 | <-0.21 | <-1.15 | Y II |
| Zr II | 1 | <2.78 | <0.32 | <-0.19 | <-2.77 | <0.38 | <-0.19 | Zr II |
| Ba II | 1 | -4.44+-0.30 | -1.34+-0.30 | -2.27+-0.30 | -4.45+-0.30 | -1.30+-0.30 | -2.27+-0.30 | Ba II |
| La II | 1 | <-2.67 | <0.43 | <-1.54 | <-2.64 | <0.51 | <-1.54 | La II |
| Ce II | 1 | <-2.71 | <0.39 | <-1.13 | <-2.71 | <0.44 | <-1.13 | Ce II |
| Nd II | 1 | <-2.40 | <0.70 | <-0.95 | <-2.37 | <0.78 | <-0.95 | Nd II |
| Sm II | 1 | <-1.83 | <1.27 | <-0.82 | <-1.78 | <1.37 | <-0.82 | Sm II |
| Eu II | 1 | <-2.52 | <0.58 | <-2.00 | <-2.52 | <0.63 | <-2.00 | Eu II |
Binary Parameters
Position
| Right Ascension : 08 49 53.46 | Declination : +63 08 21.94 | Galactic Longitude (l) : N/A | Galactic Latitude (b) : N/A |
Observing Log
| Date of Observation | JD | Facility | Resolution | S/N | Exposure Time | Vrad |
|---|
| 2454520.8 | KECKHIRES | 37000 | 30 | 18000 | -124.5+-0.3 |
The Distribution of Alpha Elements in Ultra-faint Dwarf Galaxies
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 |
|---|
| Si | N/A | ... | +0.98+0.24-0.39 | ... | -2.06+0.24-0.39 | 0.98+0.24-0.39 | 5.45+0.24-0.39 | Si |
| Fe | N/A | -3.04+-0.19 | ... | ... | -3.04+-0.19 | ... | 4.46+-0.19 | Fe |
Position
| Right Ascension : 08 49 53.46 | Declination : +63 08 21.9 | 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 | KECKIIDEIMOS | 6000 | N/A | N/A | N/A |