Chemical abundances in starburst galaxies: M82 and NGC 253

Astronomy and Astrophysics – Astrophysics

Scientific paper

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Scientific paper

Detailed abundances and abundance patterns of key metals like Fe, C, O and other α elements in starburst galaxies, as obtained from high-resolution infrared and X-ray nuclear spectra, are presented. The metals locked in stars give a picture of the galaxy metallicity prior to the last burst of star formation. The enrichment of the new generation of stars born in the last burst can be traced by measuring the hot gas in X-rays. Comparison of stellar and gaseous abundances provides important clues on the galaxy history of star formation and chemical enrichment.

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