Gravitational Wave Orchestra

8 Sept 2022, 07:00 → 9 Sept 2022, 19:30 Europe/Brussels

Place croix du Sud, SUD-19 (Université catholique de Louvain)

A stochastic gravitational-wave background is the persistent signal that comes from overlapping, unresolved independent sources. These signals are individually undetectable, but detectable as a collectivity via their common influence on multiple detectors - the musical companion to the binary black hole or binary neutron star soloist. This hum will provide insights into our universe’s early history, allowing us to listen to the first-ever song of the universe in multiple frequency bands. The Gravitational Wave Orchestra 2022 will act as the ideal backdrop to listen to the various aspects of the gravitational-wave symphony.

During this two-day workshop (in-person), we will hear from:

• Joseph Romano (TTU, Lubbock)

• Irina Dvorkin (IAP, Paris)

• Vuk Mandic (UMN, Minnesota)

• Chiara Caprini (U. Geneva & CERN)

• Stephen Taylor (Vanderbilt U., Nashville)

• Giulia Cusin (U. Geneva & IAP, Paris)

• Sanjit Mitra (IUCAA, Pune)

• Tania Regimbau (LAPP, Annecy)

• Carlo Contaldi (Imperial College, London)

• Sébastien Clesse (ULB, Brussels)

• Josquin Errard (APC, Paris)

• Boris Goncharov (GSSI, L’Aquila) 

• Guillaume Boileau (U. Antwerpen)

• Aditya Parthasarathy (MPIfR, Bonn)

• Alex Jenkins (UCL, London)

• Kamiel Janssens (U. Antwerpen & ARTEMIS, Nice)

on a broad range of topics including:

• Review on stochastic gravitational-wave backgrounds.
• Theoretical development in stochastic gravitational-wave background modelling.
• Most updated results from the LIGO-Virgo-KAGRA collaboration and Pulsar Timing Arrays.
• Future probes and strategies using: Einstein Telescope, Cosmic Explorer, and LISA.

Along with this, we will have a poster session and lightning talks. You are strongly encouraged to submit a poster abstract on stochastic gravitational-wave background-related research. Details can be found on the abstract submission page.

Registration and abstract submission deadline: August 05, 2022
Registration and abstract submission deadline (extended): August 12, 2022

Registration and abstract submission: Closed. 
Contact the organizers for any additional queries!

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Organizing Committee: 

• Jishnu Suresh, Federico De Lillo
  Antoine Depasse, Giacomo Bruno

Organizing Secretary:

• Carinne Mertens
   

This program is supported by:

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Thursday, 8 September

08:30 → 09:15 Welcome and registration

09:15 → 10:45 Day 1 - Morning session: 1

09:15 Intro & Welcome

09:25 Joseph Romano - Searching for Stochastic Gravitational-Wave Backgrounds across the gravitational-wave spectrum

Joe_Overview.pdf

10:15 Lighting Talks

Sparkler_ALL.pdf

10:45 → 11:15 Coffee Break

11:15 → 12:45 Day 1 - Morning session: 2

11:15 Irina Dvorkin - Stochastic gravitational-wave background from astrophysical sources

12:00 Chiara Caprini -Theory of SGWB from Cosmology perspective

Chiara_SGWB_orchestra.pdf

12:45 → 14:30 Lunch Break + Poster

14:30 → 16:00 Day 1 - Afternoon session: 1

14:30 Vuk Mandic - Searching for the Stochastic Gravitational-Wave Background with Terrestrial Detectors

15:15 Stephen Taylor - NANOGrav Searches for the Stochastic Gravitational Wave Background: Near-future Prospects & Milestones

16:00 → 16:30 Coffee Break + Group Photo

16:30 → 17:45 Day 1 - Afternoon session: 2

16:30 Aditya Parthasarathy - A gamma-ray pulsar timing array constrains the nanohertz gravitational wave background

16:55 Boris Goncharov - Common-spectrum process in the search for nanohertz gravitational-wave background with the PPTA

goncharov-20220908.pdf

17:20 Kamiel Janssens - Correlated noise and how it can disturb us listening to the symphony of the universe

Kamiel_CorrelatedNoise.pdf

17:45 → 18:45 Discussion

19:00 → 22:00 Social Dinner

Friday, 9 September

09:15 → 10:45 Day 2 - Morning session: 1

09:15 Giulia Cusin - Anisotropies of the Stochastic gravitational-wave background: theoretical modeling and detection prospects

10:00 Sanjit Mitra - Mapping the anisotropic Stochastic Gravitational-Wave Background

10:45 → 11:15 Coffee Break

11:15 → 12:45 Day 2 - Morning session: 2

11:15 Tania Regimbau - Is it still interesting to look at the gravitational-wave background with NG detectors

GW_Orchestra_regimbau.pdf

12:00 Carlo Contaldi - Stochastic gravitational-wave backgrounds with LISA and beyond: Challenges and future prospects

12:45 → 14:30 Lunch Break + Poster

14:30 → 15:45 Day 2 - Afternoon session: 1

14:30 Guillaume Boileau - Spectral separation of the cosmological SGWB for LISA in context of galactic and astrophysical background

Guillaume_LISA.pdf

14:55 Alexander Jenkins - Bridging the μHz gap in the gravitational-wave landscape with binary resonance

jenkins-microhz-gw.pdf

15:20 Sebastien Clesse - Popcorn in the sky: how to distinguish the gravitational-wave background from primordial black holes?

CLESSE_GWorchestra_UCLouvain.pdf

15:45 → 16:15 Coffee Break

16:15 → 17:15 Day 2 - Afternoon session: 2

16:15 Josquin Errard - Upcoming observations of the primordial, polarized Cosmic Microwave Background with the Simons Observatory: expected science and challenges

17:00 Poster award(s)

17:15 → 18:15 Discussion

18:15 → 18:30 Conclusions and remarks