Title of article
Theoretical stellar ΔY/ΔO in the early Universe
Author/Authors
Sylvia Ekstrom، نويسنده , , Georges Meynet، نويسنده , , Andre Maeder، نويسنده , , Cristina Chiappini، نويسنده , , Cyril Georgy، نويسنده , , Raphael Hirschi، نويسنده ,
Issue Information
روزنامه با شماره پیاپی سال 2009
Pages
6
From page
447
To page
452
Abstract
Population III stars initiated the chemical enrichment of the Universe. Chemical evolution models seem to favour fast rotators among the very low-metallicity population. When a star rotates fast, it ejects significant quantities of He and its nucleosynthesic products are modified compared to the case without rotation. The value of ΔY/ΔO is explored from a theoretical point of view through stellar models of zero- or very low-metallicity.
Keywords
nucleosynthesis , early universe , stars: rotation
Journal title
Proceedings of the International Astronomical Union
Serial Year
2009
Journal title
Proceedings of the International Astronomical Union
Record number
675163
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