Speaker
Bryce Remple
(Max-Planck-Institut fuer Astrophysik)
Description
The production of neutron-rich elements at neutron densities intermediate to those of the s- and r-processes, the so-called i-process, has been identified as possibly being responsible for the observed abundance pattern found in CEMP-r/s stars. The production site may be low-metallicity stars on the Asymptotic Giant Branch where the physical processes during the thermal pulses are not well known. In this talk I will present models of a 1.2 M⊙ , Z=5 × 10−5 star, exploring the impact of overshoot parameters on proton ingestion events (PIEs) and the neutron densities as a necessary precondition for the i-process. In addition, light element abundances in our models can be leveraged to favor certain sets of overshoot parameters.
Primary author
Bryce Remple
(Max-Planck-Institut fuer Astrophysik)
Co-authors
Achim Weiss
(Max-Planck-Institut fuer Astrophysik)
Tiara Battich
(Max-Planck-Institut fuer Astrophysik)
