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| Query : 2006A&A...454..119P |
2006A&A...454..119P - Astronomy and Astrophysics, volume 454119-123 (2006/7-4)
Oxygen abundance variations in the system of the two blue compact dwarf galaxies SBS 0335-052E and SBS 0335-052W.
PAPADEROS P., IZOTOV Y.I., GUSEVA N.G., THUAN T.X. and FRICKE K.J.
Abstract (from CDS):
We present 3.6m ESO telescope spectroscopic observations of the system of the two blue compact dwarf galaxies SBS 0335-052W and SBS 0335-052E. The oxygen abundance in SBS 0335-052W is 12+logO/H=7.13±0.08, confirming that this galaxy is the most metal-deficient emission-line galaxy known. We find that the oxygen abundance in SBS 0335-052E varies from region to region in the range from 7.20 to 7.31, suggesting the presence of an abundance gradient over a spatial scale of ≲1kpc. Signatures of early carbon-type Wolf-Rayet stars are detected in cluster #3 of SBS 0335-052E, corresponding to the emission of 20 to 130 WC4 stars, depending on the adopted luminosity of a single WC4 star in the C IV λ4658 emission line.
Abstract Copyright: ∼
Journal keyword(s): galaxies: fundamental parameters - galaxies: starburst - galaxies: abundances
Simbad objects: 11
| Number of rows : 11 |
| N | Identifier | Otype |
ICRS (J2000) RA |
ICRS (J2000) DEC |
Mag U | Mag B | Mag V | Mag R | Mag I | Sp type |
#ref
1850 - 2026 |
#notes |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1 | [PBT2001] SBSG 0335-052 W | G | 03 37 38.40 | -05 02 37.5 | 19.14 | 18.85 | ~ | 110 | 1 | |||
| 2 | [TIL97] 2 | Cl* | 03 37 44.0 | -05 02 38 | ~ | 23 | 0 | |||||
| 3 | [TIL97] 3 | Cl* | 03 37 44.0 | -05 02 38 | ~ | 15 | 0 | |||||
| 4 | [TIL97] 4 | Cl* | 03 37 44.0 | -05 02 38 | ~ | 18 | 0 | |||||
| 5 | [TIL97] 5 | Cl* | 03 37 44.0 | -05 02 38 | ~ | 19 | 0 | |||||
| 6 | [TIL97] 6 | Cl* | 03 37 44.0 | -05 02 38 | ~ | 16 | 0 | |||||
| 7 | [TIL97] 7 | Cl* | 03 37 44.0 | -05 02 38 | ~ | 10 | 0 | |||||
| 8 | [TIL97] 1 | Cl* | 03 37 44.0 | -05 02 38 | ~ | 23 | 0 | |||||
| 9 | SBSG 0335-052B | G | 03 37 44.04 | -05 02 40.2 | 16.77 | 16.65 | 16.79 | ~ | 220 | 1 | ||
| 10 | SBSG 0335-052 | AGN | 03 37 44.06 | -05 02 40.2 | 16.65 | ~ | 500 | 1 | ||||
| 11 | Mrk 116 | AGN | 09 34 02.1 | +55 14 25 | ~ | 1179 | 1 |
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