Star Formation Regulation, Gas Cycles and the chemical evolution of dwarf irregular galaxies
نویسندگان
چکیده
منابع مشابه
Star Formation Regulation, Gas Cycles and the Chemical Evolution of Dwarf Irregular Galaxies
Due to their low gravitational energies, dwarf galaxies are greatly exposed to energetical influences from internal and external sources. By means of chemodynamical models we show that their star formation is inherently self-regulated, that peculiar abundance ratios can only be achieved assuming different star-formation episodes and that evaporation of interstellar clouds embedded in a hot phas...
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15 صفحه اولThe Chemical Evolution of Gas-rich Dwarf Galaxies
In an effort to understand the evolution of N, O, and He abundances in gas-rich dwarf galaxies, we investigate the dispersion and mixing of supernova ejecta in relation to H ii region evolution and develop a numerical model of chemical evolution based on a double-bursting mode of star formation (with an interval of the order of 3×10 7 years between bursts of a pair) which has been designed to a...
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ژورنال
عنوان ژورنال: EAS Publications Series
سال: 2007
ISSN: 1633-4760,1638-1963
DOI: 10.1051/eas:2007016