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
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, and a dinner cruise on the beautiful Annecy lake.
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) Vuk Mandic (University of Minnessota, Mineapolis) Sanjit Mitra (IUCAA, Pune) Martina Muratore (AEI, Postdam) Arianna Renzini (Milan University) Joseph Romano (University of Texas Rio Grande Valley) Alba Romero (Vrije Universiteit Brussel) Surabhi Sachdev (Georgia Tech University) Mairi Sakellariadou (King’s College London) Golam Shaifullah (University of Milano-Bicocca)
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.
The aim of the 12th Aegean Summer School is to discuss the recent developments in theory in Gravity and Cosmology and in observations discussing the LIGO, VIRGO, LISA and BINGO experiments.
The 12th Aegean Summer School will take place in the town of Apollonia in the island of Sifnos, in the Cultural Centre “Marianthi Simou” and it is organized and sponsored by the National Technical University of Athens, Greece, the University Paris-Sud, Orsay, France, the University of Tuebingen, Germany, the University Nottingham, England, the University Sapienza, Rome, Italy, the University Pontificia Universidad Católica de Valparaiso, Chile, the University Sao Paulo, Brazil and the European Cooperation in Science and Technology (COST).
One of the most successful theory describing cosmic objects, their interactions and their time evolution, is the Einstein’s theory of Gravity. One of the main prediction of the Gravity theory is the existence of Gravitational Waves (GW), the ripples of space-time. The latest GW detections by ground-based interferometers and the discovery of a binary pulsar whose orbital period changes in accordance with the predicted GW emission, verified the predictions of the Einstein’s theory and opened up an intensive activity of understanding all aspects of the GWs and the implications of this discovery to alternative theories of Gravities and their Cosmological implications.
The modified gravity theories can give us important information on the structure and properties of the compact objects predicted by these theories and also the observational signatures which they can introduce. It is expected that future ground and space-borne detectors will improve our perception of gravitational interactions in particular will shed light into the existence of exotic compact objects, like hairy black holes and wormholes. These compact objects provide a window into the microscopic structure of spacetime in Quantum Gravity and the hope is to understand the nature of their interior, potential applications to Quantum Cosmology, and the development of further connections to quantum information and laboratory quantum simulation. The formation of these compact objects may also trigger possible holographic phase transitions to other compact objects.
The spacetime conferences bring together physicists and philosophers and provide a forum where aspects and implications of the nature and ontology of spacetime are discussed. The Scientific Organizing Committee hopes that these meetings will become one of the preferred biennial forums for reporting research results and having fruitful discussions with colleagues.
To have an idea of the location and the hotel, see pictures taken during the Third Minkowski Meeting.
16-19 September 2024
Hotel Sandy Beach Albena 9620 (near) Varna, Bulgaria
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
Announcement: the IAU Symposium on Gravitational-Wave Astrophysics [IAU 389, see https://gw2024.saao.ac.za/] will be held August 6–8, 2024, in Cape Town, South Africa as part of the 32nd, and first African, IAU General Assembly 2024. Early registration and abstract submission are now open (through 1 March, 2024) at https://astronomy2024.org/.
