SBS 0335-052W - a new, extremely low metallicity dwarf galaxy

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dc.creatorLipovetsky, V. A.
dc.creatorChaffee, F.
dc.creatorFoltz, C.
dc.creatorIzotov, Yu. I.
dc.creatorKniazev, A. Yu.
dc.creatorHopp, Ulrich
dc.date1996-07-30
dc.date.accessioned2026-07-07T02:21:41Z
dc.date.available2026-07-07T02:21:41Z
dc.descriptionWe 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.
dc.description18 pages and 2 Postscript figures, uses aasms4.sty. Submitted to Astrophysical Journal Letters
dc.identifierhttps://arxiv.org/abs/astro-ph/9607164
dc.identifierhttp://arxiv.org/abs/astro-ph/9607164
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/10595
dc.subjectAstrophysics
dc.titleSBS 0335-052W - a new, extremely low metallicity dwarf galaxy
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