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Belgian-Dutch Gravitational Wave Meeting

7–9 Oct 2026
Aula Magna
Europe/Brussels timezone

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Session

Highlights in Einstein Telescope landscape

9 Oct 2026, 13:40
Aula Magna

Aula Magna

Place Lemaitre, 1 B-1348 Louvain-la-Neuve

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  1. 42. When can Fisher forecasts be compared? Pre-sampling validity checks for gravitational-wave detector networks
    Chun-Fung Wong (KU Leuven)
    09/10/2026, 13:40

    Fisher-matrix forecasts are the standard tool for comparing proposed gravitational-wave detector networks, such as the triangular and double-L designs of the Einstein Telescope. When the likelihood is nearly flat in some direction and only the prior constrains it, the Fisher interval overstates the uncertainty — and because the size of this bias depends on detector geometry, it need not cancel...

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  2. 43. A fish out of water: How the Fisher Information Matrix can bias comparisons between gravitational waves detectors
    Luca Negri (Utrecht University & Nikhef)
    09/10/2026, 14:00

    The Fisher Information Matrix is the most widely used tool to forecast and compare the parameter estimation capabilities of future gravitational waves detectors. This method relies on a linear approximation of the detectors' response which speeds up computation of confidence intervals by millions of times with respect to stochastic sampling methods. However, neglecting higher orders terms,...

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  3. 44. Einstein Telescope: the triangle in a network and the impact of the relative orientation of detectors
    Antonin Oswald (UCLouvain)
    09/10/2026, 14:20

    The geometrical configuration of the Einstein Telescope (ET) gravitational-wave observatory is one the most important design choices to be made for this future scientific facility. Two baseline configurations are currently being considered, a single triangle or 2 distant L-shaped detectors tilted by about 45◦. In this document we present a study of the scientific performance of the ET baseline...

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  4. 45. Updates on Einstein Telescope in the EMR Region
    Jo van den Brand
    09/10/2026, 14:40
  5. 46. Updates on EMR site for ET
    Frederic Nguyen (ULiège)
    09/10/2026, 15:10
  6. 47. ET computing and data analysis initiatives in EMR
    Tjonnie Li (KU Leuven)
    09/10/2026, 15:40
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