G77-61
taken from 2 paper(s):
/B.Plez and J. G. Cohen(2005)/
/T.C.Beers et al.(2007)/
B.Plez et al.,AAP, 434, 1117, 2005 (A0042,ADS)
Analysis of the carbon-rich very metal-poor dwarf G77-61
Stellar Parameters
| Teff : 4000+-200 | log g : 5.05 |
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 | 1 | <0 | <4 | ... | <0.05 | <4.13 | <3.31 | Li I |
| C | N/A | -1.4+-0.1 | +2.6+-0.1 | ... | -1.42+-0.1 | 2.66+-0.1 | 7.01+-0.1 | C |
| CN | N/A | -1.4+-0.1 | +2.6+-0.1 | ... | -1.31+-0.1 | 2.77+-0.1 | 6.52+-0.1 | CN |
| Na I | 1 | -3.4+-0.2 | +0.60+-0.2 | ... | -3.31+-0.2 | 0.77+-0.2 | 2.93+-0.2 | Na I |
| Mg I | 2 | -3.5+-0.2 | +0.49+-0.2 | ... | -3.52+-0.2 | 0.56+-0.2 | 4.08+-0.2 | Mg I |
| K I | 2 | -2.8+-0.3 | +1.21+-0.3 | ... | -2.71+-0.3 | 1.37+-0.3 | 2.32+-0.3 | K I |
| Ca I | 1 | -3.7+-0.2 | +0.37+-0.2 | ... | -3.68+-0.2 | 0.40+-0.2 | 2.66+-0.2 | Ca I |
| Ca II | 3 | -3.5+-0.2 | +0.57+-0.2 | ... | -3.48+-0.2 | 0.60+-0.2 | 2.86+-0.2 | Ca II |
| Cr I | 2 | -3.7+-0.2 | +0.36+-0.2 | ... | -3.67+-0.2 | 0.41+-0.2 | 1.97+-0.2 | Cr I |
| Mn I | 1 | -4.1+-0.3 | -0.06+-0.3 | ... | -4.14+-0.3 | -0.06+-0.3 | 1.29+-0.3 | Mn I |
| Fe I | 6 | -4.03+-0.15 | ... | ... | -4.08+-0.15 | ... | 3.42+-0.15 | Fe I |
| Zn I | 1 | ... | <2.7 | ... | <-1.29 | <2.79 | <3.27 | Zn I |
| Sr II | 1 | ... | <0 | ... | <-3.93 | <0.15 | <-1.06 | Sr II |
| Ba II | 2 | ... | <1 | ... | <-3.08 | <1.00 | <-0.90 | Ba II |
| Eu II | 2 | ... | <3 | ... | <-1.04 | <3.04 | <-0.52 | Eu II |
Isotopic Ratio
Binary Parameters
| Binarity | Positive |
| Vrad | -20 |
| Period | 245 |
Observing Log
| Date of Observation | JD | Facility | Resolution | S/N | Exposure Time | Vrad |
|---|
| 2002-09-29 | N/A | KECKHIRES | 34000 | N/A | N/A | -29 |
| 2003-08-19 | N/A | KECKHIRES | 34000 | N/A | N/A | -20 |
| Galactic Longitude (l) : N/A | Galactic Latitude (b) : N/A | Declination : N/A | Right Ascension : N/A |
T.C.Beers et al.,AJ, 133, 1193, 2007 (A0111,ADS)
NEAR-INFRARED SPECTROSCOPY OF CARBON-ENHANCED METAL-POOR STARS. I. A SOAR /OSIRIS PILOT STUDY
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 | ... | +3.2+-0.35 | ... | -0.84+-0.35 | 3.21+-0.35 | 7.59+-0.35 | C |
| N | N/A | ... | +2.2+-0.46 | ... | -1.85+-0.46 | 2.20+-0.46 | 5.98+-0.46 | N |
| O | N/A | ... | +1.8+-0.22 | ... | -2.23+-0.22 | 1.82+-0.22 | 6.46+-0.22 | O |
| Fe | N/A | -4.0 | ... | ... | -4.05 | ... | 3.45 | Fe |
| Ba | N/A | ... | <+0.5+-0.5 | ... | <-3.51+-0.5 | <0.54+-0.5 | <-1.33+-0.5 | Ba |
Isotopic Ratio
Observing Log
| Date of Observation | JD | Facility | Resolution | S/N | Exposure Time | Vrad |
|---|
| 2005-12-27 | N/A | SOAROSIRIS | 3000 | 55 | 4800 | N/A |
| Galactic Longitude (l) : N/A | Galactic Latitude (b) : N/A | Declination : +015757.9 | Right Ascension : 033238.3 |