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The chemical composition of metal-poor emission-line galaxies in the Data Release 3 of the Sloan Digital Sky Survey
Y. I. Izotov, G. Stasinska, G. Meynet +2
We have re-evaluated empirical expressions for the abundance determination of N, O, Ne, S, Cl, Ar and Fe taking into account the latest atomic data and constructing an appropriate…
The Hamburg/SAO survey for emission-line galaxies. VI. The sixth list of 126 galaxies
S. A. Pustilnik, D. Engels, V. A. Lipovetsky +12
We present the sixth list with results of the Hamburg/SAO Survey for Emission-Line Galaxies. The final list resulted from follow-up spectroscopy conducted with the 4.5m MMT telesco…
SBS 0335-052W: The Lowest-Metallicity Star-Forming Galaxy Known
Y. I. Izotov, T. X. Thuan, N. G. Guseva
We present 4-meter Kitt Peak telescope and 6.5-meter MMT spectrophotometry of the extremely low-metallicity galaxy SBS 0335-052W, the western companion of the blue compact dwarf ga…