The present and the future of modeling eclipsing binary systems

Abstract

In September 2024, eclipsing binary star practitioners gathered in Litomysl, Czech Republic, the birth town of Zdenek Kopal, one of the most celebrated pioneers of our field, to discuss the latest developments and state-of-the-art. I was invited to present my own biased view of the present and the future of modeling eclipsing binary stars. In this contribution I attempt to make a clear distinction between approaches that are suited to individual objects and approaches that aim to deliver bulk results for large datasets. I stress that our motivation should be different: individual system analysis is warranted whenever there is potential to propose or improve our understanding of the underlying physics, while bulk analysis should be used to probe stellar formation and evolution channels. I briefly discuss two examples of tools to achieve the goals: PHOEBE for individual system analysis, and PHOEBAI for bulk analysis.