Astronomy and Astrophysics – Astrophysics
Scientific paper
1996-06-04
Astronomy and Astrophysics
Astrophysics
6 pages with 2 Postscript figures inside
Scientific paper
The Blue Compact Dwarf (BCD) galaxy SBS 0335--052 is one of the most metal--deficient galaxies known and one of the best candidates for a young dwarf galaxy in the process of formation. A VLA HI map reveals an unusual structure: the neutral gas is distributed in a very extended disk, about 15 times larger than the Holmberg optical diameter of the BCG. There are two peaks of high density. The eastern peak is close to the position of SBS 0335--052 whereas the western HI peak is associated with a faint compact optical galaxy. A 6--m telescope spectrum of this object shows Halpha, Hbeta, and [OIII] 5007 emission with a redshift close to that of SBS 0335--052. We suggest that it may be a young and chemically unevolved dwarf galaxy.
Brinks Elias
Izotov Yu. I.
Kniazev Alexei Y.
Lipovetsky Valentin A.
Neizvestny S. I.
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