Name: Neuvième Assemblée Générale du GdR Ondes Gravitationnelles
Start: 2025-10-13T10:00:00+02:00
End: 2025-10-14T17:30:00+02:00
Location: LPENS

Neuvième Assemblée Générale du GdR Ondes Gravitationnelles

from Monday, October 13, 2025 (10:00 AM) to Tuesday, October 14, 2025 (5:30 PM)

Monday, October 13, 2025

10:30 AM Coffee welcome
Coffee welcome
10:30 AM - 11:00 AM
Room: Amphi Jean Jaurès (entrée au 29 rue d'Ulm)

11:00 AM Invited talk: Reconciling Pulsar Timing Arrays Observations with Supermassive Black Hole Binary Predictions

11:00 AM - 11:30 AM
Room: Amphi Jean Jaurès (entrée au 29 rue d'Ulm)
11:30 AM FORMES D'ONDES
11:30 AM - 12:30 PM
Room: Amphi Jean Jaurès (entrée au 29 rue d'Ulm)
Contributions

11:30 AM Enjeux du group de travail [5]

11:35 AM Tom Colin: Dynamics of Spinning, Eccentric Binary Black Holes at Second Post-Newtonian Order [9+2] - Tom Colin (LUX)

11:46 AM David Trestini: Schott terms in the binding energy at fourth post-Newtonian order [9+2] - David Trestini (University of Southampton)

11:57 AM Eve Dones: Post-Newtonian Tidal Effects in the Gravitational Waveform from Binary Inspirals in Scalar-Tensor Theories [9+2] - Eve Dones (LUTH - Observatoire de Paris)

12:08 PM Etienne Ligout: Innermost stable circular orbit of arbitrary-mass compact binaries at 4PN [9+2] - Etienne Ligout (APC)

12:19 PM Emeric Seraille: Gravitational radiation reaction for compact binary systems at the fourth-and-a-half PN order in harmonic coordinates [9+2] - Emeric Seraille (LPENS)
12:30 PM Déjeuner

12:30 PM - 1:30 PM
1:30 PM ÉTOILES A NEUTRONS, SUPERNOVÆ ET SYNTHÈSES DES ÉLÉMENTS LOURDS
1:30 PM - 2:30 PM
Room: Amphi Jean Jaurès (entrée au 29 rue d'Ulm)
Contributions

1:30 PM Enjeux du groupe de travail [5] - Anthea FANTINA (GANIL ({CNRS}UPR3266))

1:35 PM Gabriele Montefusco: An ”almost-causal” Meta-Model for Neutron Star matter [10+3] - Gabriele MONTEFUSCO (CNRS - LPC Caen)

1:48 PM Lami Suleiman: Equation of state and nuclear parameter inference with gravitational wave detections of binary neutron star mergers - Lami Suleiman (Deutsches Elektronen Synchrotron)

2:01 PM Santiago Jaraba: Numerical simulations of oscillations in differentially rotating neutron stars - Santiago Jaraba (Observatoire astronomique de Strasbourg - CNRS)

2:14 PM Matteo Bugli: The impact of rotation and nuclear equations of state on the multi-messenger emission from core-collapse supernovae - Matteo Bugli (Institut d'astrophysique de Paris - CNRS)
2:30 PM Invited talk: On the internal constitution of neutron stars and their equation of state

2:30 PM - 3:00 PM
Room: Amphi Jean Jaurès (entrée au 29 rue d'Ulm)

3:00 PM Coffee break

3:00 PM - 3:30 PM
Room: Amphi Jean Jaurès (entrée au 29 rue d'Ulm)
3:30 PM PRÉDICTION ET SUIVI DES SIGNAUX MULTI-MESSAGER (1)
3:30 PM - 4:06 PM
Room: Amphi Jean Jaurès (entrée au 29 rue d'Ulm)
Contributions

3:30 PM Enjeux du groupe de travail [5]

3:35 PM A. Coleiro: SVOM [15+3] - Alexis Coleiro (APC / Université Paris Diderot)

3:53 PM Susanna Vergani: Multi-messenger observations in the ET era [10+3] - Susanna Diana VERGANI (CNRS-Observatoire de Paris)
4:06 PM COSMOLOGIE
4:06 PM - 5:20 PM
Room: Amphi Jean Jaurès (entrée au 29 rue d'Ulm)
Contributions

4:07 PM Enjeux du groupe de travail [5]

4:12 PM Benoit Revenu: Cosmological contraints obtained with the fourth gravitational wave transients catalog (GWTC-4.0) of the LVK collaboration [15+5] - Benoît Revenu (subatech)

4:32 PM Tom Bertheas: Towards a few % measurement of H0 with the current network of GW detectors without using EM information [10+2] - Tom Bertheas (L2IT, LPENS)

4:44 PM Alessandro Pedrotti: Cosmology with the Angular Cross-Correlation of Contenu Galaxies and GWs [10+2] - Alessandro Pedrotti (CPT)

4:56 PM Syksy Räsänen: The effect of matter discreteness on gravitational wave propagation [10+2] - Syksy Räsänen (University of Helsinki)

5:08 PM Arthur Poisson: A look through the dark ages of cosmological inflation via the scalar-induced Gravitational wave background [10+2] - Arthur Poisson (IAP)
6:00 PM Cocktail

6:00 PM - 8:00 PM
Tuesday, October 14, 2025
9:00 AM TESTS DE LA RELATIVITÉ GÉNÉRALE ET THÉORIES ALTERNATIVES
9:00 AM - 10:00 AM
Room: Amphi Jean Jaurès (entrée au 29 rue d'Ulm)
Contributions

9:00 AM enjeux du groupe de travail [5]

9:05 AM Felipe Barbosa: Forecasting general relativity constraints with 3G detectors [9+2] - Felipe Barbosa (Federal University of Espirito Santo)

9:16 AM Andrea Begnoni: Beyond GR tests with Einstein Telescope [9+2] - Andrea Begnoni (University of Padova, INFN Padova)

9:27 AM Charles Dalang: Multi-messenger lensing time delay as a probe of the graviton mass [9+2] - Charles Dalang (LPENS)

9:38 AM Aaron Held: Numerical relativity waveforms in effective field theories of gravity [9+2] - Aaron Held (École Normale Supérieure)

9:49 AM Iosif Bena: Positive spin-induced quadrupole moment [9+2] - Iosif Bena (IPhT, CEA-Saclay)
10:00 AM Invited talk: Updates from the fourth release of the Gravitational Wave Transient Catalog (GWTC-4) and latest results from the search for an Isotropic Gravitational-Wave Background from the first part of LIGO, Virgo, and KAGRA's fourth Observing Run (O4a).
Updates from the fourth release of the Gravitational Wave Transient Catalog (GWTC-4) and latest results from the search for an Isotropic Gravitational-Wave Background from the first part of LIGO, Virgo, and KAGRA's fourth Observing Run (O4a).
10:00 AM - 10:30 AM

10:30 AM Coffee break

10:30 AM - 11:00 AM
Room: Amphi Jean Jaurès (entrée au 29 rue d'Ulm)
11:00 AM DEVELOPPEMENT DES DETECTEURS
11:00 AM - 12:10 PM
Room: Amphi Jean Jaurès (entrée au 29 rue d'Ulm)
Contributions

11:00 AM enjeux du groupe de travail [5]

11:05 AM Stephanie Grabielle: Parametric Instability Mitigation in Contenu gravitational-wave detectors [8+2] - Stéphanie Grabielle (Laboratoire ARTEMIS)

11:15 AM Yiming Meng: MIGA II: Gravitational Wave Testbed [8+2] - Yiming MENG (Institut d'Optique Graduate School)

11:25 AM Clement Jacquet: Simulation des méthodes de caractérisation du détecteur d’ondes gravitationnelles Virgo [8+2] - Clément JACQUET (L2I Toulouse, Université de Toulouse, CNRS/IN2P3)

11:35 AM Patrice Verdier: The project Einstein Telescope [20+15] - Patrice Verdier (IP2I Lyon - IN2P3)
12:10 PM DISCUSSION et table ronde sur Einstein Telescope

12:10 PM - 12:45 PM
Room: Amphi Jean Jaurès (entrée au 29 rue d'Ulm)

12:45 PM Déjeuner

12:45 PM - 1:45 PM
Room:
1:45 PM PRÉDICTION ET SUIVI DES SIGNAUX MULTI-MESSAGER (2)
1:45 PM - 2:11 PM
Room: Amphi Jean Jaurès (entrée au 29 rue d'Ulm)
Contributions

1:45 PM Pierre-Alexandre Duverne : Sub-threshold searches for coincidences between gravitational waves and neutrino detected with neutrino telescopes in the depths of the Mediterranean Sea [10+3] - Pierre-Alexandre Duverne (Astroparticules et Cosmologie)

1:58 PM Ines Bentara: Prospective Study of Virgo’s Impact in Sky Localisation of Gravitational Wave Events within the LVK Network for O5 [10+3] - Inès Bentara
2:11 PM POPULATION DES SOURCES
2:11 PM - 2:45 PM
Room: Amphi Jean Jaurès (entrée au 29 rue d'Ulm)
Contributions

2:11 PM enjeux du groupe de travail [5]

2:16 PM Viola de Renzis: Which is which? Identification of the two compact objects in gravitational-wave binaries [10+3] - Viola De Renzis (University of Milano-Bicocca)

2:29 PM Alexandre Toubiana : Methods for population studies on LVK data [10+3] - Alexandre Toubiana (Max Planck Institute for Gravitational Physics)
2:45 PM Invited talk: LISA : A spaceborne observatory for detecting gravitational waves
LISA : A spaceborne observatory for detecting gravitational waves
2:45 PM - 3:15 PM
Room: Amphi Jean Jaurès (entrée au 29 rue d'Ulm)

3:15 PM Coffee break

3:15 PM - 3:45 PM
Room: Amphi Jean Jaurès (entrée au 29 rue d'Ulm)
3:45 PM MÉTHODES D’ANALYSE DES DONNÉES
3:45 PM - 4:20 PM
Room: Amphi Jean Jaurès (entrée au 29 rue d'Ulm)
Contributions

3:45 PM enjeux du groupe de travail [5]

3:50 PM Hugo Einsle : Gravitational-wave background detection using machine learning [12+3] - Hugo Einsle (Université Côte d'Azur)

4:05 PM Alexis Boudon: Contraintes sur l’EOS à partir d’un vaste ensemble de fusions BNS simulées et accélérées par ROQ avec le réseau LVK [12+3] - Alexis Boudon (IP2I - IN2P3, CNRS)

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