Gravitational waves (GWs) from compact binaries have been detected in the kHz regime, and Pulsar Timing Arrays are revealing a GW background in the nHz band. Experimental ideas spanning from nHz to MHz are being explored to cover the gravitational spectrum. This is an exciting time to explore what GWs can uncover about fundamental physics and cosmology by detecting astrophysical and primordial GW sources, as well as exploring effects that could be induced by various Dark Matter candidates.
This workshop will unite astrophysicists, cosmologists, and particle physicists to discuss open questions and define theoretical targets, guiding the field in experimental strategies across the gravitational spectrum to learn about our Universe.
All of this is to be set against the backdrop of the medieval town of Pollica, in Southwestern Italy (Cilento region). The workshop will take place from the 9th to the 20th of September 2024.
Location: the workshop will take place in the Castello dei Principi Capano, in Pollica (SA).
This workshop brings together researchers at the forefront of both forward astrophysical modeling of compact object binary formation and gravitational-wave data analysis in preparation for the upcoming O4 data release of the LIGO, Virgo, and KAGRA interferometers.
Gravitational waves represent an incredibly exciting new frontier in observational astronomy. The rapidly growing data set of mergers of black holes and neutron stars contains information on the compact-object masses, spins, and merger redshifts. The population of these sources has the potential to inform our understanding of fields as broad as stellar and binary evolution, mass-transfer physics, dynamics in dense stellar environments, supernova modeling, nucleosynthesis, chemical evolution, the cosmological history of the Universe, as well as the fundamental theory of gravity. Yet, these discoveries rely on inference using data with limited precision and significant selection effects, using potentially imperfect models that may lead to incorrect conclusions.
The workshop is organized by Davide Gerosa, Ilya Mandel, and Salvatore Vitale at the Sexten Center for Astrophysics, which is located in the beautiful Dolomites, in the Italian Alps. Sexten overlooks the Tre Cime di Lavaredo (Three Peaks of Lavaredo) which are among the most iconic peaks in alpinism history. Scientific sessions are hosted at the Bad Moos hotel, which is right next to the ski slopes. Please don’t throw too many snowballs at other conference attendees.
Fifth edition of the Gravi-Gamma-Nu workshop to be held in the historic city center of Bari in the Puglia region of Italy from October 9-11, 2024.
This year’s workshop will be dedicated to covering the latest multi-messenger observational results on AGN and black holes combined with highlights on novel simulation techniques and analysis methods.
The format of the workshop consists of invited and contributed talks. Information regarding the workshop, including the list of confirmed invited speakers can be found on the webpage.
Registration and abstract submission opened on May 1st. We strongly encourage the participation of PhD and early career researchers.
Announcement of the International GEMMA2 (G ravitational-waves, E lectro M agnetic and dark MA tter) Physics Workshop to be held in Rome (Italy) from September 16th to September 19th, 2024.
The aim of the GEMMA2 workshop is to discuss on gravitational waves, multimessenger astrophysics and dark matter physics at these especially exciting times, bringing together mainly the theoretical and data-analysis aspects of such apparently heterogeneous fields. Registration is now open and Abstract Submission on these topics is welcome.
GEMMA2 is organised into days focused on key topics introduced by invited speakers (who will be announced soon) and followed by contributed talks.
There will also be a poster session, along with two Young Scientist GEMMA2 Awards for the best poster contributions by skilled young researchers.
The deadline for abstract submission is June 16th, 2024, and the deadline for early registration is June 28th, 2024. The LOC and the SOC are looking forward to welcoming you to Rome.
Announcement of the first TEONGRAV international workshop on the theory of gravitational waves, to be held at Sapienza University of Rome on Sep, 16-20 2024.
TEONGRAV is a large INFN (National Institute for Nuclear Physics) initiative comprising 10 research units across Italy, with the aim to explore different aspects of the theory of gravitational-wave sources.
Topics of the workshop will include GW modeling, tests of gravity, neutron-star equations of state, astrophysical black-hole formation channels, and EM counterparts to GW events.
List of invited speakers:
Floor Broekgaarden (USA)*
Gregorio Carullo (DK/UK)
Pau Figueras (UK)*
Rossella Gamba (USA)
Michaela Ortel (FR)*
Geraint Pratten (UK)*
Raffaella Schneider (IT)
Daniel Siegel (DE)
Eleonora Troja (IT)
Chris Van Der Broek (NL)
Niels Warburton (IRE) (* to be confirmed)
We will have slots for contributed talks, round tables, and discussion.
Scientific Secretariat: Alessandra Curto TEONGRAV Organizing Committee: Enrico Barausse, Mariafelicia De Laurentis, Luca Del Zanna, Bruno Giacomazzo, Leonardo Gualtieri, Giuliano Iorio, Andrea Maselli, Alessandro Nagar, Paolo Pani, Albino Perego
With the recent adoption of the LISA mission by the European Space Agency, we have entered a new exciting phase. Now, more than ever, there is a need to prepare the theoretical and data-analysis tools that will allow us to fully exploit LISA’s capabilities, and probe strong gravity and fundamental physics in unprecedented ways.
With that in mind, we are pleased to announce an in-person meeting of the Fundamental Physics and Waveform Working Groups of the LISA Consortium. The workshop is hosted by the “Astrophysical and Cosmological Relativity” division at the Max Planck Institute for Gravitational Physics (Albert Einstein Institute) in Potsdam, Germany.
The first two days of the meeting, September 2-3, will be dedicated to talks and discussions on ongoing and possible future projects carried out within the Fundamental Physics Working Group. The focus will be on identifying the theoretical developments and the data-analysis tools needed to perform strong-field tests of General Relativity with LISA.
The third day of the meeting, September 4, is organized jointly by the Fundamental Physics and Waveform Working Groups and aims at brainstorming on common needs and goals since waveforms are the “bread and butter” for extracting information about the nature of black holes, their environment, and gravity.
The final two days of the meeting, September 5-6, will be dedicated solely to the Waveform Working Group. The objective is to identify significant waveform developments for various gravitational-wave sources, necessary for LISA data validation and science exploitation.
The workshop is limited to 70 participants on any given day, except Wednesday, where we aim at 140 participants. Register now!
The 11th KAGRA international workshop (KIW-11) will be held on 16-17 April 2024 in Taichung City, Taiwan. KIW focuses not only on the KAGRA project, but also encompasses all related fields such as other gravitational wave experiments, gravitational wave sciences, and multi-messenger astronomy.
On behalf of the KAGRA under the GWOSC of the LVK collaboration, we also host open data workshop (ODW) in Taiwan on Apr 18-20 of 2024.
Join us to explore the uncharted milli-Hertz regime of the gravitational wave spectrum, a domain soon to be unlocked by space missions. With a special emphasis on the Laser Interferometer Space Antenna (LISA) mission, our workshop also broadens its scope to include other milli-Hertz missions and aims to explore synergies with the next generation of ground-based gravitational wave detectors.
Valeriya Korol, Natalia Korsakova, Lucio Mayer, Martina Toscani, Niels Warburton
The milli-Hertz regime is unique due to the variety of gravitational wave sources emitting at these frequencies, including binaries of stellar remnants such as white dwarfs, neutron stars, and black holes within our own Galaxy, as well as inspiraling compact objects onto massive black holes (aka Extreme/Intermediate Mass Ratio Inspirals, E/IMRI) and mergers between nascent massive black holes (MBH) at cosmic dawn. This regime is also unique in terms of waveform modelling, data analysis and data interpretation, presenting challenges that call for a community-driven approach.
Our workshop will bring together leading experts and early career scientists in the field of theoretical modelling (from astrophysics to numerical relativity), electromagnetic observations, and gravitational wave data analysis, aiming to prepare the community for the new kind of gravitational wave data and to enable groundbreaking astrophysics in the milli-Hertz regime. The format will balance scientific talks, interactive tutorials, and open discussions, creating an ideal environment for initiating new collaborations and consolidating ongoing projects. More broadly, we strive to foster a community where interdisciplinary and creative collaborations can flourish.
Week 1 (30th June – 4th July): Astrophysical Modelling and Uncertainties
Review and assess state-of-the-art astrophysical models.
Identify gaps and uncertainties in mHz GW source modelling.
Key topics to be discussed include:
Robustness of stellar binary modelling against assumptions on stability of mass transfer, accretion onto compact objects, common envelopes, and tides.
Predicting MBH binaries/EMRI/IMRI event rates and their key waveform properties.
Existence and distribution of intermediate-mass black holes.
Outline a road-map for addressing challenges in waveform modelling before 2030s.
Access the required waveform accuracy for the mHz data analysis.
Key questions to be discussed include:
Integrating post-Newtonian and numerical relativity simulations to provide predictions for waveforms under realistic orbital configuration of the mHz GW sources.
Explore the possibility of extending black hole perturbation theory for IMRIs.
Including environmental effects in GW waveforms.
Advances and applicability of emerging methods based on effective field theory and amplitude scattering techniques.
Week 3 (14th – 18th July): Data Analysis and Parameter Estimation
Discuss data analysis complexities; in particular challenges of the “global fit” approach.
Focus on precise source parameter estimation and accurate source subtraction to facilitate the analysis of stochastic backgrounds.
Key questions to be discussed include:
Utilising electromagnetic observations of Galactic binaries for instrument noise estimation.
Identify waveforms that effectively capture the diversity and complexity of astrophysical populations for each source type while optimising computational efficiency.
Formulate astrophysically motivated priors for the global fit analysis.
Discuss strategies for extracting astrophysical sources from GW data to analyse stochastic signals.
Week 4 (21st – 25th July): Data Interpretation via Astrophysical Models
Build upon insights from previous weeks’ discussions to explore the scientific interpretation of mHz GW data using astrophysical models.
Develop astrophysics-focused mock data challenges to prepare the community for future data interpretation.
Key questions to be discussed include:
Re-discovering our Galaxy using mHz GW detections.
Understanding MBH formation through GW detections.
Leveraging GW event rates to study physical processes in galactic nuclei.
Identifying promising electromagnetic counterparts for mHz GW sources
