TY  - JOUR
A1  - Vescovi, Diego
A1  - Reifarth, René
T1  - s-processing in asymptotic giant branch stars in the light of revised neutron-capture cross sections
T2  - Universe
N2  - Current AGB stellar models provide an adequate description of the s-process nucleosynthesis that occurs. Nonetheless, they still suffer from many uncertainties related to the modeling of the 13C pocket formation and the adopted nuclear reaction rates. For many important s-process isotopes, a best set of neutron-capture cross sections was recently re-evaluated. Using stellar models prescribing that the 13C pocket is a by-product of magnetic-buoyancy-induced mixing phenomena, s-process calculations were carried out with this database. Significant effects are found for a few s-only and branching point isotopes, pointing out the need for improved neutron-capture cross section measurements at low energy.
KW  - nucleosynthesis
KW  - s-process
KW  - asymptotic giant branch stars
KW  - stellar abundances
KW  - nuclear reaction cross sections
KW  - chemically peculiar stars
KW  - circumstellar dust
Y1  - 2021
UR  - http://publikationen.ub.uni-frankfurt.de/frontdoor/index/index/docId/62459
UR  - https://nbn-resolving.org/urn:nbn:de:hebis:30:3-624593
SN  - 2218-1997
N1  - This work was partially supported by the German-Israeli Foundation (GIF No. I-1500- 303.7/2019).
VL  - 7
IS  - 7, art. 239
SP  - 1
EP  - 10
PB  - MDPI
CY  - Basel
ER  -