24th Eastern Gravity Meeting, May 22 & 23, 2025 at University of New Hampshire, Durham

February 6, 2025February 6, 2025

24th Eastern Gravity Meeting, May 22 & 23, 2025 at University of New Hampshire, Durham

The Department of Physics and Astronomy at the University of New Hampshire is pleased to announce the 24th Eastern Gravity Meeting.  The meeting will be held on the campus, located in Durham, NH, on the New Hampshire seacoast about one hour north of Boston by car or train.  Researchers and students from all areas of gravitational physics, including computational gravity, observational gravity, theoretical classical and quantum gravity, cosmology and gravitational astrophysics are welcome to attend.  We especially encourage students and younger researchers to attend and present.  (As has been traditional, there will be a prize for the best student talk.)

There is no registration fee. However, we ask that everyone attending register using the form below by May 1st, as this will help us arrange sessions, organize talks, purchase food, etc. Unfortunately, since this is a free meeting there is no ability of the organizers to assist with travel expenses. There are numerous local accommodations available, and campus is accessible by car, plane, and Amtrak (Getting to campus).

Meeting Website

February 6, 2025February 6, 2025

Black Holes, Neutron Stars, and Gravitational Waves @ Black Sea, June 16-20 2025, Varna

The direct detection of gravitational waves heralded a new era in gravity and astrophysics, allowing us to probe the universe in ways previously thought impossible. Electromagnetic observations have also made remarkable progress over the last decade. Thus, we live now in times where the strong-field regime of gravity and the behavior of matter at ultra-high densities can be tested with unprecedented precision, offering new insights into fundamental physics.

Black Holes, Neutron Stars, and Gravitational Waves @ Black Sea aims to highlight the significance of these discoveries, discuss the latest theoretical and observational advancements, and explore future directions in the field. For this purpose, we will bring together gravity researchers from different backgrounds. We are delighted to be hosting a broad range of invited speakers and we aim for a constructive and interactive meeting. Apart from the invited speakers, we will be able to accommodate a limited number of contributed talks. A poster session will also be organized.

The main topics of the conference are:

Gravitational waves from the coalescence of black holes, neutron stars, and other compact object
Detection and analysis of gravitational waves
Strong field tests of General Relativity and alternative theories of gravity
Accretion discs and shadows of compact objects
Pulsar timing
Fundamental physics with gravitational waves
Modified theories of gravity
Long-range gravity, dark matter, dark energy

Invited speakers

Eugeny Babichev (University of Paris-Saclay)
Miguel Bezares (University of Nottingham)
Jose Luis Blázquez Salcedo (Complutense University of Madrid)
Christos Charmousis (University of Paris-Saclay)
Pablo Cerdá-Durán (University of Valencia)
Isabel Cordero-Carrión (University of Valencia)
José Antonio Font (University of Valencia)
Leonardo Gualtieri (University of Pisa)
Carlos Herdeiro (University of Aveiro)
Tanja Hinderer (Utrecht University)
Sascha Husa (Universitat de les Illes Balears)
Laur Järv (University of Tartu)
José Beltrán Jiménez (University of Salamanca)
Hao-Jui Kuan (Albert Einstein Institute, Potsdam)
Adrien Kuntz (CENTRA, Lisbon)
Jutta Kunz (University of Oldenburg)
Felipe Llanes-Estrada (Universidad Complutense de Madrid)
Elisa Maggio (Albert Einstein Institute, Potsdam)
Andrea Maselli (Gran Sasso Science Institute)
Hector Olivares (University of Aveiro)
Carlos Palenzuela (Universitat de les Illes Balears)
Lefteris Papantonopoulos (University of Athens)
George Pappas (Aristotle University of Thessaloniki)
Milton Ruiz (Univesity of Valencia)
Fethi Ramazanoglu (Koc University)
Violetta Sagun (University of Southampton)
Mairi Sakellariadou (King’s College London)
Nicolas Sanchis-Gual (University of Valencia)
Llibert Aresté Saló (Leuven University)
Masaru Shibata (Albert Einstein Institute, Potsdam)
Sergey Solodukhin (University of Tours)
Hajime Sotani (Kochi University)
Thomas Sotiriou (University of Nottingham)
Alejandro Torres-Forné (University of Valencia)
and more (TBC)

Location and Venue
Varna, Bulgaria

Varna, located on the eastern coast of Bulgaria, is a vibrant city with a rich history, stunning beaches, and a thriving cultural scene. As one of Europe’s oldest cities, Varna boasts a history spanning over 7,000 years, influenced by civilizations such as the Thracians, Greeks, Romans, and Byzantines.

The city’s location along the Black Sea provides beautiful beaches, attracting visitors from across Europe. Varna also offers several must-see attractions, such as the Varna Archaeological Museum, which houses the famous Gold of Varna, the world’s oldest processed gold treasure, as well as the Roman Baths, Varna Cathedral, and the Sea Garden.

Conference venue

The Conference venue is Hotel Cherno More in Varna. The hotel is located near the beautiful sea park, and then the beach.

The venue is around 10 km far from the Varna International Airport. There is a direct bus 409 connection to the venue.

Conference Website

February 4, 2025

Cosmic Explorer Symposium and Physics and Astrophysics at the eXtreme workshop (PAX-X) at UIUC from 30 June – 3 July 2025

The 10th Physics and Astrophysics at the eXtreme workshop (PAX X) and the 3rd Cosmic Explorer Symposium will be held jointly at the University of Illinois Urbana-Champaign from 30 June – 3 July 2025.

The Cosmic Explorer Symposium will bring together the community to discuss important aspects of the design and operations of the Cosmic Explorer gravitational-wave observatories, covering both observational and instrument science.
The PAX-X workshop will explore how the ongoing and upcoming observations of gravitational and electromagnetic waves can help us understand physics at the extreme — strong gravitational fields, dark matter, nuclear physics, cosmology, and multimessenger astrophysics.

Panels will be organized around a small number of presentations to identify important areas for research and foster discussions and community feedback.

Registration will open shortly.

LOC: Hector O. Silva, Mateus Reinke Pelicer, Antonios Tsokaros, Helvi Witek,

SOC (confirmed members so far): Stefan Ballmer, Lisa Barsotti, Emanuele Berti, Alessandra Corsi, Paul Fulda, Anuradha Gupta, Jan Harms, Joey Key, Lionel London, David Ottaway, Bangalore Sathyaprakash, Hector O. Silva, Antonios Tsokaros, Helvi Witek

February 4, 2025

Gravitational-Wave Detector Workshop (GWADW) May 18-23, Cocoa Beach, Florida

The 2025 Gravitational-Wave Advanced Detector Workshop (GWADW) occurs on May 18 to 23 at the Hilton Cocoa Beach, Florida, Oceanfront hotel. May 18 (Sunday) is the arrivals day, with an evening reception. We plan to end Friday, May 23rd. The workshop will provide a forum for exchange of ideas, novel concepts and unpublished results in the interdisciplinary research on the detection of gravitational waves (GW).

The workshop scope is broad:

(1) The ultimate configuration and performance of existing detectors such as A#, Voyager, Virgo_nEXT, and the KAGRA upgrade.
(2) Cosmic Explorer and the Einstein Telescope.
(3) LISA, the first space-based detector.
(4) Follow-on space-based detectors.
(5) Exotic and out-of-the box ideas.

It is very timely to have a workshop bringing together leading experts in experimental approaches to gravitational-wave detection. A willingness to explore novel ideas is also crucial to realize improved detectors. We invite all scientists interested in instrument science of gravitational-wave detection to attend the workshop. The program will be organized to allow for a range of interactions and discussions, as well as opportunities for junior participants to share their work.

Workshop Website

January 29, 2025

5th Meeting on Gravitational Wave Science in Scandinavia, May 15-16, 2025

The gravitational physics landscape has been evolving rapidly, driven in good part by our ability to study strong-field regions, in particular black holes, with gravitational waves. Gravitational-wave astronomy will celebrate a decade of existence in 2025, and with it we celebrate a revolution in physics. The Scandinavian community has been producing exciting results in the field and will meet for the 5th Meeting on Gravitational Wave Science in Scandinavia.

This is a meeting in a series which started in 2019:

Aarhus University, Jan 30 (2019, organiser: Thomas Tauris)
NBI, Jan 31 (2020, organiser: Johan Samsing)
Aalborg University, Jan 18-19 (2023, organiser: Thomas Tauris)
University of Stavanger, May 23-24 (2024, organiser: Alex Nielsen)

The 2025 meeting will take place at the Niels Bohr Institute May 15-16, 2025.

The Niels Bohr Institute carries an important legacy in physics and is one of the leading institute in theoretical and experimental physics. Copenhagen is a very enjoyable and beautiful city, and as the capital of Denmark has plenty of wonderful things to do and is easy to reach. and we would be thrilled to organize a small historical tour of the institute. The entire Nordic region has plenty to offer and is a remarkable place for summer vacations.

Code of Conduct: This meeting aims to provide a safe and comfortable environment for scientific interactions. All participants are bound to the Niels Bohr Institute Code of Conduct.

Scientific organizing committee
Vitor Cardoso, Rico Lo, Johan Samsing, Thomas Tauris, Darach Watson.

Local organizing committee
Vitor Cardoso, Julie de Molade, Rico Lo.
For questions concerning this event, please contact Coordinator Julie de Molade (julie.demolade(at)nbi.ku.dk)

Meeting Website

January 28, 2025January 28, 2025

Moriond Gravitation 2025, March 30 – April 6 in La Thuile

The next Rencontres de Moriond and GRAM Colloquium on Gravitation will take place from March 30 to April 06, 2025 in La Thuile (Italy). It will be an "in person" meeting. The conference will review the subject two years after the last edition. The conference will include both review and contributed talks and will be organized only in plenary sessions.

The main topics of the conference are:

Gravitational waves detection from the coalescence of black holes and neutron star mergers
Detection and analysis of gravitational waves in the era of multimessenger astronomy
Strong field tests of General Relativity (Pulsars, Black holes,…)
Quantum sensors
Pulsar timing
Fundamental physics with gravitational waves
Tests of the equivalence principle
Astrometry, solar system ephemerides and observational gravity tests
Space geodesy, Earth and Planetary Gravity, Navigation
Clocks, lasers and fundamental constants
Tests of GR and alternative theories (CPT and Lorentz violation,…)
Modified gravity theories
Short range gravity and Casimir effect: classical, atom and neutron tests
Long range gravity, dark matter, dark energy
Cosmology, primordial black holes and gravitational Waves

Committee

Barry Barish – Caltech, Pasadena, USA
Lisa Barsotti MIT, Boston, USA
Marie Anne Bizouard – Observatoire de Nice, France
Luc Blanchet – IAP, Paris, France
Philippe Brax, IPhT Saclay
Benjamin Canuel, LP2N Bordeaux
Jacques Dumarchez – LPNHE, Paris, France
Benoît Famaey – Observatoire de Strasbourg, France
Aurélien Hees, Observatoire de Paris-PS, France
Antoine Petiteau – Irfu-SPP, Saclay, France
Serge Reynaud – LKB, Paris, France
Fulvio Ricci – Università La Sapienza, Rome Italy
Keith Riles – Univ Michigan, Ann Arbor, USA
Tim Sumner – Imperial College London, UK/Florida University, USA
Peter Wolf – Observatoire de Paris-PSL, France

Let us remind you that the deadline for abstract submission is: January 31st, 2025.

Conference Website

January 24, 2025June 12, 2025

Ten Years to LISA: New Challenges and Opportunities in Multimessenger/Multiband Science, April 1-3, 2025, hybrid

The conference website for Ten Years to LISA: New Challenges and Opportunities in Multimessenger/Multiband Science is now online.
This is a hybrid meeting, meaning participation can be virtual or in-Person. Dates: April 1-3, 2025. In-Person Location: von Karman Auditorium, Jet Propulsion Laboratory, Pasadena, CA

Conference Overview: Motivation and Format

For the purpose of this Overview, “multimessenger astronomy” stands for “multimessenger including gravitational waves”, and “multiband” means “multiple gravitational-wave bands”. Multimessenger astronomy, in this sense, began with a bang with the LIGO-Virgo detection of GWs from the merger of two neutron stars, GW170817, an event that was soon observed in most EM bands. While there was an expectation in the field that NS mergers powered some short gamma-ray bursts (sGRBs) and models of their subsequent radioactive decay (kilonova) existed, confirmation of these theories occurred only from GW170817. Details of these events, like the delay between the GW and GRB signals and the GRB strength, however, led to new insights into their pre-merger environments and the dependence on viewing angle of the jet’s appearance.

Astrophysicists’ predictions of the EM signals that will accompany LISA (Laser Interferometer Space Antenna) events may be even less advanced than sGRB models prior to GW170817 and share a lack of confirming evidence. This conference is premised on the viewpoint that this relative ignorance represents an opportunity, or, really, several opportunities. There is important work to be done i) using past and upcoming observations (both EM and GW) to constrain event rates and search for the signatures of LISA-type events before LISA turns on; and ii) using astrophysical models to predict the multimessenger and multiband signals that will accompany LISA signals.

We have about ten years to work on this before LISA and Nature start to give us some of the answers. It is our belief that such work done before LISA starts taking data will almost surely help us maximize the science we extract. (And we expect that will be true even if most of our predictions are not ultimately borne out by observations.)

With the above as motivation, this Conference will give overviews of the sorts of EM & GW observations that we expect to be made over the next 10+ years and how they relate to LISA. And it will suggest LISA multimessenger/multiband science investigations that could be started now. Our main goal is to help stimulate new, important work in these areas.

The format for the conference is as follows. We have divided our subject into eight topics. Over the course of the three-day conference, there will be eight sessions: one devoted to each topic. For each session, we have found a topical expert who has agreed to chair that session. The Session Chairs will build their sessions using some combination of invited talks and talks contributed via this website. It will be up to each Session Chair to construct their session as they think best.

This a hybrid conference, meaning participation can be either in-person or online. There is zero registration fee for either in-person or remote attendance. However, we recommend that you attend in person, if you can, to benefit from the side discussions that are important part of any conference. We plan to limit talks to about six hours per day, to leave plenty of time for such side discussions.

Important Dates:

Monday, December 23, 2025 – Registration open
Tuesday, February 4, 2025 – Deadline for abstract submission for presentations and posters
Monday, February 24, 2025 – Registration closes for attendees from these Designated Countries who are attending in person
Monday, March 10, 2025 – Registration closes
Friday, March 28, 2025 – Deadline for submission of talks

Please register here.

Co-Organizers:

Katerina Chatziioannou, California Institute of Technology
Curt Cutler, Jet Propulsion Laboratory, California Institute of Technology
Michele Vallisneri, Jet Propulsion Laboratory, California Institute of Technology

For any questions please contact multilisa_oc(at)jpl.nasa.gov.

Workshop Sessions

EM Telescopes and Observations – From now to 2040
Gravitational-Wave Telescopes and Observations – From now to 2040
Galactic Binaries
Joint LISA + Ground-Based Observations of Stellar-Mass Binaries
EM Counterparts to GW Signals from MBHBs
The Population of LISA MBHBs: What we have learned from simulations
The Population of LISA MBHBs: Inference from Current & Future Observations
EMRIs

Conference Website

Workshop Agenda

Workshop Presentations

Prospects in Theoretical Physics 2025: Gravitational Waves from Theory to Observation, July 14-25, 2025, Princeton

PiTP is an intensive two-week summer program designed for advanced graduate students and postdoctoral scholars. The program will be held from July 14-25, 2025 at the Institute for Advanced Study, Princeton, NJ. The school will explore the field of gravitational wave physics and astrophysics, bridging the gap between theory and observation. Gravitational waves offer a unique window into the Universe, allowing us to probe extreme astrophysical environments and primordial cosmological epochs. Gravitational waves also allow for powerful tests of general relativity in the strong field regime.

Over the last decade, the direct detection of gravitational waves has opened up new avenues of research, driving rapid advancements in theoretical modeling, observational techniques, and data analysis. The school will provide a comprehensive overview of the field’s current state, covering key theoretical tools, the latest developments in modeling gravitational wave sources, and state-of-the-art methods in data analysis. These tools are essential for extracting physical insights from current observations and will be a critical foundation for interpreting data from more sensitive upcoming detectors.
PiTP Program Details

The APPLICATION deadline is Sunday, March 1, 2025 at 11:59 pm (Eastern Standard Time). If you have not received your PhD, one letter of recommendation from your thesis advisor is required and should be uploaded with the application or with this reference form.

For housing, travel, and other administrative PiTP information please see the FAQ page.

Topics will include:

Waveform models, Numerical Relativity, Gravitational Wave Searches, Parameter Estimation, Pulsar Timing Arrays, Astrophysics of Gravitational Wave Sources and interpretation of current observational data.

Preliminary Program Lecturers

Bruce Allen (Max Planck Institute for Gravitational Physics)
Emanuele Berti (Johns Hopkins University)
Neil Cornish (Montana State University)
Maya Fishbach (University of Toronto)
Luis Lehner (Perimeter Institute)
Chiara Mingarelli (Yale University)
Patricia Schmidt (University of Birmingham)
Tejaswi Venumadhav Nerella (University of California, Santa Barbara)
Barak Zackay (Weizmann Institute)
Matias Zaldarriaga (Institute for Advanced Study)

Organizing Committee

Maya Fishbach (Toronto); Tejaswi Venumadhav Nerella (UCSB); Frans Pretorius (Princeton); Barak Zackay (Weizmann); Matias Zaldarriaga (IAS)

If you have questions regarding the PiTP program, please send an email to: pitp(at)ias.edu.

School Website

January 15, 2025January 15, 2025

2nd Annual Workshop on Self-Force and Amplitudes, September 9-12, 2025, Southampton

The 2nd Annual Workshop on Self-Force and Amplitudes will be hosted by the Gravitational Waves Group at the University of Southampton from 9th - 12th September 2025.

Recent developments in perturbative quantum field theory have offered new insights into the classical two-body dynamics in the post-Minkowskian expansion (i.e., expansion in Newton’s constant), leveraging efficient computational techniques traditionally used for collider physics. At the same time, the gravitational self-force expansion has allowed the gravitational-wave community to develop a description of the two-body dynamics which is fully non-perturbative in the coupling, while being accurate only in the limit of small mass ratios.

There are exciting prospects in uniting these two complementary approaches, possibly yielding powerful new modeling methods for gravitational-wave astronomy and new insights into the connections between gravity and quantum field theory. There have recently been notable steps toward this goal, but much more remains to be done to fully benefit from synergies between the two methods. This workshop is a sequel to the event held at the Higgs Centre in Edinburgh in 2024, which brought together experts from both communities to establish new collaborations.

Topics will include

using data from scattering scenarios to inform models of gravitationally bound systems
using the self-force expansion to determine unknown high-order terms in the post-Minkowskian series, and vice versa
using self-force results to inform resummations of post-Minkowskian calculations, and vice versa
validating and informing resummation techniques using numerical relativity simulations of scattering orbits
describing Kerr black holes with amplitudes and point particles
investigating double copy structures in classical gravity and black hole perturbation theory

Due to limited space, registration will be moderated.

Invited speakers

Leor Barack
Poul Daamgard
Thibault Damour
Gustav Jakobsen
Dimitrios Kosmopoulos
Oliver Long
Julio Parra-Martinez
Nabha Shah
Canxin Shi
Davide Usseglio
Maarten van de Meent
Pierre Vanhove
Chris Whittall
Mao Zeng
more to come…

Workshop Website

January 15, 2025January 15, 2025

APCTP Workshop on Gravitational Waves 2025, April 20-25, Taipei

The workshop APCTP-GW2025 aims to bring together researchers from the Asia Pacific region who are working on various aspects of the rapidly advancing field of GW astronomy. Set in the beautiful backdrop of Taipei in the spring, participants will not only engage in discussions but also enjoy the excellent weather, vibrant culture, and authentic traditional cuisine.

Gravitational waves (GWs) are transforming our understanding of the Universe, offering a revolutionary window into cosmic phenomena that were previously inaccessible through traditional astronomical observations. The LIGO-Virgo-KAGRA consortium’s observations of hundreds of transient GW events from merging stellar mass black holes and neutron stars during the last decade have inaugurated the era of GW Astronomy by deepening our knowledge of these extreme stars of Einstein’s General Relativity. Rapidly maturing Pulsar Timing Array efforts have provided glimpses of nanohertz GWs, offering new insights into high-energy phenomena in the early Universe and supermassive black hole binaries. The upcoming/proposed GW observatories like SKA, LIGO-India, LISA, Taiji/TianQin, ET, CE, and LILA are expected to address some of the most pressing challenges in modern cosmology, such as the Hubble tension and the nature of inflation in the early Universe while providing ultra-sensitive tests for Einstein’s universe.

Invited Speakers

Alvin Chua (NUS)
Anna Heffernan (UIB)*
Che-Yu Chen (RIKEN)
Feng-Li Lin (NTNU)
George Hobbs (CSIRO)
Jai-chan Hwang (IBS)
Otto Hannuksela (CUHK)
Ryan Shannon (Swinburne)
Sarah Vigeland (UWM)
Takahiro Tanaka (Kyoto U.)
Tjonnie Li (KU Leuven)
Vicharit Yingcharoenrat (Chulalongkorn U.)
Xiao Xue (IFAE)
Xingjiang Zhu (BNU)
Yuki Inoue (NCU)
More To Be Confirmed*

Dates and Venue

20 – 25 April, 2025
Institute of Physics, Academia Sinica, Taipei, Taiwan
Registration deadline: 1st March 2025
No registration fee, but slots are limited
Contributed talks and posters are welcome

Code of Conduct

The organizers are committed to ensuring that this workshop is a positive, inclusive, and enriching experience for all participants. We aim to foster an environment free from harassment and discrimination, welcoming individuals of all genders, sexual orientations, disabilities, physical appearances, body sizes, ethnicities, nationalities, religions, and ages. Harassment of any kind will not be tolerated. Thank you for helping us create a supportive and collaborative community.

Scientific Organising Committee

Achamveedu Gopakumar (Tata Institute of Fundamental Research)
Ian Vega (National Institute of Physics, University of the Philippines Diliman)
Kin-Wang Ng (Academia Sinica)
Reginald Christian Bernardo (APCTP)
Stephen Appleby (APCTP)

Workshop Website

Workshop Agenda

Workshop Presentations

Day 1 Presentations

Day 2 Presentations

Day 3 Presentations