Astrophysics

While upcoming cosmological surveys promise to map the universe with unprecedented precision, the challenge remains on how to optimally extract information from this wealth of data. We introduce Neural Quantile Estimation (NQE), a novel Simulation...

Gravitational wave observations of strongly gravitating systems allow us not only to probe black holes and neutron stars, but also have the potential to uncover new fundamental physics. Boson stars, a particular representative of a larger class of...

Simulation-based inference (SBI) is a promising approach to leverage cosmological simulations and extract information from the non-Gaussian, non-linear scales that cannot be modeled analytically. However, scaling SBI to the volumes and resolutions...

Abstract: In four-dimensional asymptotically flat spacetimes, the infinite tower of soft graviton modes is known to generate a w(1+infinity) symmetry algebra at tree-level.  In this talk, I will review this symmetry and demonstrate that it acts non...

Each week, we hold a relatively informal seminar/discussion series with an emphasis on extra-galactic and large-scale structure astrophysics.

During Galread a leader/visitor presents a recent paper to the discussion group. The PDF of the paper is...

Detections of neutron stars in binaries through gravitational waves offer a novel way to probe the properties of extremely dense matter. In this talk I will describe the properties of the signals we have observed, what they have already taught us...