Astronomy and Astrophysics – Astrophysics
Scientific paper
1996-07-30
Astronomy and Astrophysics
Astrophysics
18 pages and 2 Postscript figures, uses aasms4.sty. Submitted to Astrophysical Journal Letters
Scientific paper
We present Multiple Mirror Telescope (MMT) spectrophotometry and 3.5m Calar Alto telescope R, I photometry of the western component of the extremely low-metallicity blue compact galaxy SBS 0335-052. We argue that both components, separated by 24 kpc, are members of an unique, physically connected system. It is shown that SBS 0335-052W has the same redshift as SBS 0335-052 and has an extremely low oxygen abundance, 12 + log (O/H) = 7.45+-0.22, comparable to those in I Zw 18 and SBS 0335--052. The (R-I) color profiles are very blue in both galaxies due to the combined effect of ionized gas and a young stellar population. We argue that SBS 0335--052W is likely to be a nearby young dwarf galaxy with age not exceeding 10^8 yr. The implications of this conclusion to the question of galaxy formation and to the properties of primeval dwarf galaxies are discussed.
Chaffee Frederic
Foltz Craig
Hopp Ulrich
Izotov Yu. I.
Kniazev Alexei Y.
No associations
LandOfFree
SBS 0335-052W - a new, extremely low metallicity dwarf galaxy does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.
If you have personal experience with SBS 0335-052W - a new, extremely low metallicity dwarf galaxy, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and SBS 0335-052W - a new, extremely low metallicity dwarf galaxy will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-588332