Bibcode
Vilchez, J. M.; Esteban, C.
Bibliographical reference
"Star Formation, Galaxies and the Interstellar Medium, Procedings of the 4th EIPC Astrophysical Workshop. Edited by J. Franco, F. Ferrini, and G.
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1993
Citations
0
Refereed citations
0
Description
Massive stars have significant effects on the ambient interstellar
medium (ISM) via either strong UV radiation or powerful stellar winds.
These winds also produce an important chemical pollution. Since WRs are
the chemically evolved descendants of very massive stars, their winds
are expected to be helium-rich and to show the effects of the CNO cycle.
Here the authors examine the available theoretical predictions for the
evaluation of the chemical enrichment due to massive stars in the light
of the most recent abundance determinations for a sample of galactic WR
nebulae and for a group of galactic OB stars. The importance of the
chemical enrichment by massive stars in low metallicity starbursts, H II
galaxies, is also discussed.