Belgian-Dutch Gravitational Wave Meeting

Session

Talks data analysis and theory

7 Oct 2026, 17:00

Aula Magna

9. Scalable and sequential inference of the neutron star equation of state with the Einstein Telescope

Thibeau Wouters (Utrecht University/Nikhef)

07/10/2026, 17:00

Future gravitational wave observatories, such as the Einstein Telescope, will detect thousands of mergers between compact objects annually. By detecting the effects of tidal deformation in binary neutron star mergers, these detectors will be the dominant way to study the equation of state of ultradense nuclear matter in the coming decades. However, this requires a scalable Bayesian...

8. Scalable early warning for BNS mergers in next-generation ground-based detectors using SBI

Martin Gerini

07/10/2026, 17:20

Third-Generation (3G) observatories will observe Binary Neutron Star coalescences for hours before merger. Over these extended windows, Earth's motion induces signal modulations that render standard approaches computationally prohibitive for low-latency searches. To overcome this, we propose a 2D Convolutional Neural Network (CNN) processing multi-detector, complex Short Fourier Transform...

20. Probing Binary Black Hole Mergers in AGN Accretion Disks with Gravitational Waves and Neutrinos

Leonardo Ricca (CP3)

07/10/2026, 17:40

We present a method to search for coincident gravitational-wave and high-energy neutrino emissions from binary black holes (BBHs) embedded in the accretion disks of active galactic nuclei (AGNs). Such environments are promising sites for multimessenger emission from BBHs, as the surrounding matter and radiation fields can enable electromagnetic and neutrino emission in addition to GWs....

3. Rapid Classification of Eccentric Binaries with the Wavelet Scattering Transform

Seppe Staelens (University of Cambridge)

09/10/2026, 11:30

The gravitational-wave detections reported by the LVK collaboration have so far been consistent with quasi-circular compact binary coalescences. Nevertheless, a small fraction of binaries may retain measurable orbital eccentricity in the LVK frequency band. Confident measurement of eccentricity would provide strong evidence for dynamically driven mergers; however, eccentric...

15. New hardware-accelerated and accurate gravitational waveform approximants for fast parameter estimation

Robin Chan (UGent | Royal Observatory of Belgium)

09/10/2026, 11:50

Gravitational wave parameter estimation demands millions of waveform evaluations per event, a bottleneck set to worsen as next-generation detectors like the Einstein Telescope and Cosmic Explorer increase detection rates and signal duration. We present a major expansion of ripple, a JAX-based waveform package offering GPU acceleration and exact autodifferentiation, which now covers...

37. Thibeau Wouters: Scalable and sequential inference of the neutron star equation of state with the Einstein Telescope

Future gravitational wave observatories, such as the Einstein Telescope, will detect thousands of mergers between compact objects annually. By detecting the effects of tidal deformation in binary neutron star mergers, these detectors will be the dominant way to study the equation of state of ultradense nuclear matter in the coming decades. However, this requires a scalable Bayesian...