Survey of R-process Models With Distinct Nuclear Inputs

Supernovae and neutron star mergers are considered the most significant sources of the rapid neutron capture (r-process) elements found in the universe. The r-process yields of such events are simulated through nuclear network calculations that employ astrophysical trajectories as well as a choice of nuclear models for the properties of the thousands of populated nuclear species. It is necessary to understand the impact of disparate nuclear models on nucleosynthesis simulations to accurately interpret stellar observations. Here we describe fresh calculations of the nucleosynthesis yields of unique astrophysical trajectories from a wide parameter space (entropy S/K_b, expansion timescale τ, and electron fraction Y_e) calculated with 12 sets of distinct nuclear models. We examine nucleosynthetic signatures and investigate how they are shaped by the input nuclear physics.