Reinhold Willcox, PhD

Theoretical and Computational Astrophysicist


About

I am currently a postdoc at KU Leuven in Belgium, with expertise in binary stellar evolution modelling. My interests include black holes and neutron stars, the evolution of their massive star progenitors, and the population of these that will go on to merge as gravitational wave sources, as observed by the LIGO-Virgo-KAGRA gravitational wave detectors.

I am also especially fond of pulsars, the observational (and theoretical) diversity of supernovae, natal kicks and mass loss in neutron star and black holes formation, and the boundary between stable and unstable binary mass transfer. For further detail, and for a list of recent publications, see Research.

I completed my PhD in 2023 at Monash University, in Melbourne, AU, in binary stellar astrophysics. My thesis, "Refining Mass Transfer and Supernova Models in Binary Stellar Populations", focused on interacting, massive binary stars modelled using the rapid population synthesis code COMPAS, for which I am an active developer.

If you would like to discuss opportunities to present talks or colloquia, or have a general research question, please reach out!

CV


You can download my CV here.

Future Plans


My current contract at KU Leuven runs until September 2026. I am currently (late 2025) applying for new fellowship and postdoc positions, so please reach out if you know of an opportunity.