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- W2113226323 abstract "A chemical evolution model following the evolution of the abundances of H, He, C, N, O and Fe for dwarf irregular and blue compact galaxies is presented. This model takes into account detailed nucleosynthesis and computes in detail the rates of supernovae of type II and I. The star formation is assumed to have proceeded in short but intense bursts. The novelty relative to previous models is that the development of a galactic wind is studied in detail by taking into account the energy injected into the interstellar medium (ISM) from both supernovae and stellar winds from massive stars as well as the presence of dark matter halos. Both metal enriched and normal winds have been considered. Our main conclusions are: i) a substantial amount of dark matter (from 1 to 50 times larger than the luminous matter) is required in order to avoid the complete destruction of such galaxies during strong starbursts, and ii) the energy injected by stellar winds and type Ia supernovae into the ISM is negligible relative to the total thermal energy, and in particular to the type II supernovae, which in fact, dominate the energetics during starbursts." @default.
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- W2113226323 date "1998-01-14" @default.
- W2113226323 modified "2023-09-27" @default.
- W2113226323 title "The Influence of Stellar Energetics and Dark Matter on the Chemical Evolution of Dwarf Irregulars" @default.
- W2113226323 hasPublicationYear "1998" @default.
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