Primary nitrogen production at low Z
Author: Meynet, Georges
Source: Astrophysics and Space Science, Volume 281, Numbers 1-2, July 2002 , pp. 183-186(4)
Abstract:Stellar models with axial rotation and very low metallicity Z, typical of the early star generations have been computed. These models account for the effects of rotation in the same way as previous grids which successfully reproduce the He- and N-enrichments observed at the surface of massive stars, and also the high numbers of red supergiants observed in low Z galaxies (Meynet and Maeder, 2000; Maeder and Meynet, 2001). At very low metallicity (Z = 0.00001, i.e. one two thousandth of the solar metallicity),these models naturally lead to the production of primary nitrogen.
Document Type: Research Article
Publication date: July 1, 2002