par Pols, Onno;Izzard, Robert 
;Lugaro, Maria;De Mink, Selma
Référence Proceedings of the International Astronomical Union, 4, S252, page (383-389)
Publication Publié, 2008
;Lugaro, Maria;De Mink, SelmaRéférence Proceedings of the International Astronomical Union, 4, S252, page (383-389)
Publication Publié, 2008
Article révisé par les pairs
| Résumé : | We present the results of binary population simulations of carbon-enhanced metal-poor (CEMP) stars. We show that nitrogen and fluorine are useful tracers of the origin of CEMP stars, and conclude that the observed paucity of very nitrogen-rich stars puts strong constraints on possible modifications of the initial mass function at low metallicity. The large number fraction of CEMP stars may instead require much more efficient dredge-up from low-metallicity asymptotic giant branch stars. © 2008 Copyright International Astronomical Union. |
