Gravitational Wave Orchestra in the Alps

Sep 17, 2024, 10:30 AM → Sep 19, 2024, 11:00 PM Europe/Paris

Auditorium (LAPP)

We are organizing the second edition of the "Gravitational Wave Orchestra" in Annecy, following a first event in Louvain-la-Neuve in September 2022.

The idea of this series of workshops is to bring together international experts on the stochastic gravitational background. This background is the gravitational signal created by the ensemble of all sources, from the earliest instants of the Universe, that are too distant or too faint to be detected individually. We can think of an orchestra in which each instrument plays its own melody, and together  form a symphony.

This conference aims to highlight the most recent advances and discoveries in this rather specialized field, with an emphasis on theory and data analysis. The format, which leaves plenty of time for discussion, encourages exchange. We are also planning tutorial sessions on the data analysis methods used by the various gravitational wave collaborations, LIGO-Virgo-KAGRA, LISA,  Pulsar Timing Arrays and cosmic microwave background experiments.

The social events will be a conference by the artist Jan de Coninck on his project "the triangle", which remind the Einstein Telescope and LISA , the first evening, and a dinner cruise on the beautiful Annecy lake the last day.

We are organizing the cosmology working group meeting of the GdR Gravitational Waves a day before with a lecture by Joseph Romano. Participants are encouraged to attend the two events.

Invited speakers/Panel members/Tutors

• Anirban Ain (University of Antwerp)
• Quentin Baghi (APC, Paris)
• Simon Biquard (APC, Paris)
• Chiara Caprini (University of Geneva)
• Giulia Cusin (IAP, Paris)
• Irina Dvorkin (IAP, Paris)
• Martina Muratore (AEI, Postdam)
• Mauro Pieroni (CERN)
• Arianna Renzini (Milan University)
• Joseph Romano (University of Texas Rio Grande Valley)
• Alba Romero (Vrije Universiteit Brussel)
• Golam Shaifullah (University of Milano-Bicocca)
• Jishnu Suresh (Université Catholique de Louvain)

 

Tue, September 17

2:00 PM → 5:30 PM Terrestrial laser interferometers LIGO-Virgo-Kagra

2:00 PM Introduction

Speaker: Dr Tania Regimbau ({CNRS}UMR5814)

2:15 PM Review talk

Speaker: Arianna Renzini

3:00 PM Detecting a non isotropic background

Speaker: Anirban Ain

Anirban_Ain_Detecting_a_non_isotropic_background_GWO.pdf

3:30 PM Coffee break

4:00 PM Effect of correlated magnetic noise on directional stochastic gravitational wave background searches

Speaker: Stavros Venikoudis

Stavros_Venikoudis_Presentation_GWO_ANNECY.pdf

4:30 PM Detection methods for a non-Gaussian gravitational wave background

Speaker: Sachiko Kouroyanagi

5:00 PM Stochastic GW background from binary neutron stars, inspiral to postmerger

Speaker: Leonard Lehoucq

GWO_Annecy_LLehoucq.pdf

6:00 PM → 7:00 PM Art project seminar: The Triangle by Jan de Coninck

7:00 PM → 9:00 PM Tartiflette at LAPP

Wed, September 18

9:00 AM → 12:30 PM Next generation terrestrial detectors

9:00 AM Anisotropies and polarization of the Stochastic GW background with 3G detectors

Speaker: Giorgio Mentasti

9:30 AM XG global GW detector network: Impact of detector orientation on compact binary coalescence and stochastic GW background searches

Speaker: Michael Ebersold

Presentation_GWO_Michael.pdf

10:00 AM The astrophysical gravitational-wave background as a cosmological probe

Speaker: Guilia Capurri

gwo24_capurri.pdf

10:30 AM Coffee break

11:00 AM Investigating cosmic histories with a stiff era through Gravitational Waves

Speaker: Hannah Duval

11:30 AM Gravitational Waves to unveil primordial non-Gaussianity

Speaker: Gabriele Perna

GWO_Perna.pdf

12:30 PM → 2:00 PM Lunch break

2:00 PM → 6:30 PM Data analysis tutorials

2:00 PM Isotropic searches with terrestrial detectors LIGO-Virgo-Kagra

Speaker: Alba Romero

3:00 PM Directional searches with terrestrial detectors LIGO, Virgo, Kagra

Speaker: Arniban Ain

4:00 PM Coffee break

4:30 PM Simulating and analysing LISA measurements of gravitational wave backgrounds

Speaker: Quentin Baghi

5:30 PM Searches with PTA

Speaker: Golam Shaifullah

Thu, September 19

9:00 AM → 10:15 AM Space detector LISA

Mauro.pdf

9:00 AM Review talk

Speaker: Martina Muratore

GWO_Martina_Muratore.pdf

9:45 AM Measuring Gravitational Wave Backgrounds (GWBs) with LISA

Speaker: Mauro Pieroni

Mauro.pdf

10:15 AM → 2:45 PM Pulsar Timing Arrays

10:15 AM Review talk

Speaker: Stas Babak

PTA_2024_GWO.pdf

11:00 AM Coffee break

11:30 AM Optimal reconstruction of the Hellings and Downs correlation

Speaker: Bruce Allen

GwOrchestra_Bruce.pdf

12:00 PM Cosmic variance of the Hellings and Downs correlation for ensembles of universes having non-zero angular power spectra

Speaker: Deepali Agarwal

12:30 PM Lunch break

1:45 PM Measuring kinematic anisotropies with Pulsar Timing Arrays

Speaker: Ameek Malhotra

GWO_2024_AmeekMalhotra.pdf

2:15 PM Pulsar Timing Arrays as probes of the early universe

Speaker: Delphine Perrodin

2:45 PM → 4:00 PM Other Experiments

2:45 PM CMB experiments

Speaker: Simon Biquard

GWO_Biquard_2024.pdf

3:30 PM Stochastic gravitational wave background constraints from Gaia DR3 astrometry

Speaker: Santiago Jaraba

GW Orchestra presentation Jaraba.pdf

4:00 PM → 4:30 PM Coffee break

4:30 PM → 6:00 PM Panels

4:30 PM Theory and modeling

Speaker: Chiara Caprini

5:15 PM Data analysis

Speaker: Joseph Romano

7:30 PM → 10:00 PM Social dinner