Were the First Stars Fast Rotators?

Details Were the First Stars Fast Rotators? Were the First Stars Fast Rotators?

Mar 2008

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2008aipc..990..325c&link_type=abstract

FIRST STARS III: First Stars II Conference. AIP Conference Proceedings, Volume 990, pp. 325-329 (2008).

Computer Science

1

Supergiant Stars, Abundances, Chemical Composition, Stellar Rotation, Population Iii Stars, Stellar Structure, Interiors, Evolution, Nucleosynthesis, Ages

Scientific paper

Rapidly rotating massive stars are currently one of the most promising ways of explaining the high N/O abundances measured in normal metal poor stars. Here we show the predicted impact of fast rotators on the 12C/13C ratio at very low metallicities. We show that upon the inclusion of fast rotating massive stars, low 12C/13C ratios are expected in extremely metal poor halo stars. Observations of 12C/13C ratios in metal poor dwarf and turnoff stars would offer a crucial test to the idea that fast rotating stars were a common phenomenona in the primordial Universe.

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