Speaker
Description
We introduce a user-friendly detailed and modular GALactic Chemical Evolution Model, GalCEM, that tracks isotope masses as a function of time in a given galaxy. The list of tracked isotopes automatically adapts to the complete set provided by the input yields. The present iteration tracks 89 elements broken down into 456 isotopes. We include the following enrichment channels: massive stars (SNII), low-to-intermediate mass stars (LIMs), Type Ia supernovae, dynamic and jet components of neutron star mergers, collapsars, and magneto-rotational supernovae.
We have developed a pre-processing tool that extracts multi-dimensional interpolation curves from the input yield tables. In this work, we have applied this pre-processing tool to SNII and LIMs yields. The extrapolated interpolation curves improve the computation speeds of the full convolution integrals, which are computed for each isotope and for each enrichment channel. We map the integrand quantities onto consistent array grids in order to perform the numerical integration at each time step.
We will present two sets of results: the evolution of all the light and intermediate elements from carbon to zinc, with lithium, and the evolution of heavy elements. Our results are consistent up to the extremely metal-poor regime with Galactic abundances. We will conclude with a discussion on our assumptions and on the landscape of a selection of open problems in the field of Galactic Chemical Evolution.
| Please select a main topic related to your abstract | First Generation Stars and Galactic Chemical Evolution |
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