The observed oxygen abundances in a number of irregular galaxies have been compared
with predictions of the closed-box model for chemical and photometric evolution of galaxies …

An analytical model of chemical evolution of irregular galaxies taking into account both non-
selective heavy-element loss via ordinary galactic winds and selective heavy-element loss …

We performed a compilation of more than 1000 published spectra of H ii regions in spiral
galaxies. The oxygen and nitrogen abundances in each H ii region were recomputed in a …

The low-luminosity dwarf irregular galaxies are considered. The oxygen abundances in H ii
regions of dwarf irregular galaxies were recalculated from published spectra through the …

The observed radial distributions of oxygen abundance in twelve spiral galaxies of various
Hubble types from Sab to Sd have been compared with predictions of the closed-box model …

Within the framework of the closed box model of chemical evolution of galaxies the evolution
of nitrogen and oxygen abundances in dwarf irregular galaxies is considered. We show that …

The nature of a possible correlation between metallicity and luminosity for dwarf irregular
galaxies, including those with the highest luminosities, has been explored using simple …

We discuss the chemical evolution of metal poor galaxies and conclude that their oxygen
deficiency is not due to: the production of black holes by massive stars or a varying slope of …

We present long-slit optical spectroscopy of 67 H II regions in 21 dwarf irregular galaxies to
investigate the enrichment of oxygen, nitrogen, neon, sulfur, and argon in low-mass …

Oxygen abundances are obtained by optical spectrophotometry of H II regions in seven
nearby dwarf irregular galaxies. All of these yield oxygen abundances of less than 1/10 of …