Astrophysics Seminars

I will motivate current work in weak gravitational lensing with cosmic and astrophysical puzzles. The evolution of dark energy, the growth of structure and feedback from supermassive black holes are some of the debated questions. I will describe how...

Tidal disruption events — where an unfortunate star is destroyed by a previously quiescent supermassive black hole — offer a unique probe of the low mass end of the supermassive black hole population. Recent observational advances have lead to the...

This study evaluates the performance and applicability of the high-order Spectral-Difference (SD) method in astrophysical contexts. We begin by analyzing the advantages and disadvantages of SD relative to the widely used Finite-Volume (FV) methods...

After ten years of gravitational-wave observations with the LIGO–Virgo–KAGRA interferometers, over 200 signals from merging black hole binaries have been detected, bringing us closer to understanding how these systems form. Addressing this question...

Cold Neptunes appear to be among the most abundant planets in the Galaxy, yet their role in shaping planetary systems remains poorly understood. We study the dynamical evolution of cold Neptune systems born in resonant chains through disk-driven...

Discs of stars around super-massive black holes, like the one at the Galactic centre, evolve primarily via resonant relaxation, which is the process governing the evolution of the angular-momentum vectors of stellar orbits about the super-massive...

The evolution of planets and planetary systems depends on the environments created by their host stars in a number of ways.  In this talk, I will discuss several observable impacts of stellar winds, radiation pressure, and non-thermal ionizing...

Massive black holes (MBHs) exist at the centers of many dense star systems, particularly in galactic nuclei.  Steady accretion onto MBHs powers active galactic nuclei, but dynamical processes near MBHs can generate various forms of transient...

In the era of high-dimensional data and simulation-based science, machine learning is transforming the different stages of the scientific method in astrophysics. I will present a summary of my research connected to generative models in two main...

In the past decade, we have detected hundreds of gravitational waves, advancing our understanding of the Universe and its governing laws. In this talk, I will present the theoretical models and data analysis tools I have developed for interfacing...