SAGA_Seg1_000007
Original Names
Segue1-7 in J.E.Norris+,ApJ, 722, L104, 2010Seg-7 in J.E.Norris+,ApJ, 723, 1632, 2010
taken from 2 paper(s):
/J.E.Norris et al.(2010)/
/J.E.Norris et al.(2010)/
Chemical Enrichment in the Faintest Galaxies: The Carbon and Iron Abundance Spreads in the Boötes I Dwarf Spheroidal Galaxy and the Segue 1 System
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 | -1.2 | +2.3 | ... | -1.08 | 2.42 | 7.35 | C |
| Fe | N/A | -3.5 | ... | ... | -3.50 | ... | 4.00 | Fe |
Position
| Right Ascension : 10 08 14.45 | Declination : +16 05 01.2 | Galactic Longitude (l) : N/A | Galactic Latitude (b) : N/A |
Observing Log
| Date of Observation | JD | Facility | Resolution | S/N | Exposure Time | Vrad |
|---|
| 2007-04-18 | N/A | N/A | 5000 | N/A | N/A | 194 |
An Extremely Carbon-rich, Extremely Metal-poor Star in the Segue 1 System
Stellar Parameters
| Teff : 4960+-140 | log g : 1.9+-0.4 | vturb : 1.3+-0.3 |
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 | N/A | ... | 2.30+-0.30 | 7.17+-0.20 | -1.26+-0.20 | 2.31+-0.30 | 7.17+-0.20 | CH |
| NH | N/A | ... | 0.75+-0.42 | 5.01+-0.30 | -2.82+-0.30 | 0.75+-0.42 | 5.01+-0.30 | NH |
| O I | 1 | ... | <2.21 | <7.35 | <-1.34 | <2.23 | <7.35 | O I |
| Na I | 2 | ... | 0.53+-0.13 | 3.18+-0.04 | -3.06+-0.04 | 0.51+-0.13 | 3.18+-0.04 | Na I |
| Mg I | 5 | ... | 0.94+-0.11 | 4.95+-0.07 | -2.65+-0.07 | 0.92+-0.11 | 4.95+-0.07 | Mg I |
| Al I | 1 | ... | 0.23+-0.19 | 3.08 | -3.37 | 0.20+-0.19 | 3.08 | Al I |
| Si I | N/A | ... | 0.80+-0.26 | 4.79+-0.20 | -2.72+-0.20 | 0.85+-0.26 | 4.79+-0.20 | Si I |
| Ca I | 9 | ... | 0.84+-0.09 | 3.63+-0.04 | -2.71+-0.04 | 0.86+-0.09 | 3.63+-0.04 | Ca I |
| Ti I | 1 | ... | 0.53+-0.18 | 1.91 | -3.04 | 0.53+-0.18 | 1.91 | Ti I |
| Ti II | 11 | ... | 0.65+-0.19 | 2.03+-0.08 | -2.92+-0.08 | 0.65+-0.19 | 2.03+-0.08 | Ti II |
| Cr I | 3 | ... | -0.26+-0.10 | 1.86+-0.05 | -3.78+-0.05 | -0.21+-0.10 | 1.86+-0.05 | Cr I |
| Mn I | 1 | ... | -0.56+-0.19 | 1.31 | -4.12 | -0.55+-0.19 | 1.31 | Mn I |
| Fe I | 37 | <-3.52+-0.09 | ... | 3.93+-0.03 | <-3.57+-0.09 | ... | 3.93+-0.03 | Fe I |
| Fe II | 2 | ... | -0.01+-0.25 | 3.92+-0.16 | -3.58+-0.16 | -0.01+-0.25 | 3.92+-0.16 | Fe II |
| Co I | 4 | ... | 0.37+-0.16 | 1.77+-0.15 | -3.22+-0.15 | 0.35+-0.16 | 1.77+-0.15 | Co I |
| Ni I | 1 | ... | -0.55+-0.18 | 2.16 | -4.06 | -0.49+-0.18 | 2.16 | Ni I |
| Sr II | 2 | ... | -1.39+-0.27 | -1.99+-0.23 | -4.86+-0.23 | -1.29+-0.27 | -1.99+-0.23 | Sr II |
| Ba II | 1 | ... | <-0.96 | <-2.31 | <-4.49 | <-0.92 | <-2.31 | Ba II |
| Eu II | 1 | ... | <0.80 | <-2.20 | <-2.72 | <0.85 | <-2.20 | Eu II |
Isotopic Ratio
Binary Parameters
Position
| Right Ascension : 10 08 14.4 | Declination : +16 05 01 | Galactic Longitude (l) : N/A | Galactic Latitude (b) : N/A |
Observing Log
| Date of Observation | JD | Facility | Resolution | S/N | Exposure Time | Vrad |
|---|
| 2010-01-27 | N/A | VLT | 40000 | 25-100 | 68760 | 204.3+-0.1 |