Research

The origin of compact binary systems is encoded in a small set of observable parameters that can be detected through gravitational waves. Among these, spin inclinations and orbital eccentricity are particularly promising for unraveling the still unresolved question of how compact binary systems form. However, in the relativistic two-body problem, these parameters are not constant. As a result, the values we measure do not directly reflect the initial conditions of the binary system at formation—we must reconstruct their evolutionary history.

Over the past two years of my PhD research, I have focused on understanding the dynamics of eccentric and/or precessing compact binaries, particularly those composed of black holes. Together with my supervisor, Davide Gerosa, we developed and implemented the first formalism capable of evolving precessing and eccentric black hole binaries from merger to formation and vice versa. Through this framework, we have discovered that eccentricity and spin orientation are intimately connected!

This work has opened the door to many new questions. From fundamental theoretical inquiries—such as how to consistently evolve eccentric binaries (hint: Peters' equations aren't the answer! Stay tuned)—to practical considerations regarding the implications of this interplay at the population level (check out our initial findings; in summary: we're in the clear for now, but let's revisit when the O4 data is published).

This research also provided the opportunity to collaborate with a number of exceptional people, including Nicholas Loutrel, Isobel Romero-Shaw, Matteo Boschini, Aleksandra Olejak, and Konstantinos Kritos. Science is never done alone. 

For the APS April Meeting 2024, I've been asked to create some infographics of my work  for potential promotion to journalists. Here is my attempt.