Refine your search�ソスF     
Report No.
 - 

Neutron-capture nucleosynthesis in the He-flash convective zone in extremely metal-poor stars

Nishimura, Takanori*; Iwamoto, Nobuyuki  ; Suda, Takuma*; Aikawa, Masayuki*; Fujimoto, Masayuki*; Iben, I. Jr.*

We investigated the progress of nucleosynthesis in the helium flash driven convective zone which triggers the mixing of hydrogen into this convective zone in the extremely metal-poor, asymptotic giant branch stars with low and intermediate masses. The amounts of $$^{13}$$C created by proton captures on abundant $$^{12}$$C in He layer strongly depend on the resultant abundances of nuclei. We showed that under circumstances initially devoid of metals, the heavy $$s$$-process elements such as Sr, Ba and even Pb can be formed with light elements as seeds which are produced via two neutron-recycling reactions ($$^{12}$$C(n,$$gamma$$)$$^{13}$$C($$alpha$$,n)$$^{16}$$O and $$^{16}$$O(n,$$gamma$$)$$^{17}$$O($$alpha$$,n)$$^{20}$$Ne).

Accesses

:

- Accesses

InCites™

:

Altmetrics

:

[CLARIVATE ANALYTICS], [WEB OF SCIENCE], [HIGHLY CITED PAPER & CUP LOGO] and [HOT PAPER & FIRE LOGO] are trademarks of Clarivate Analytics, and/or its affiliated company or companies, and used herein by permission and/or license.