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27th Capra Meeting on Radiation Reaction in General Relativity, June 17-21 2024, Singapore

The 27th Capra Meeting will be hosted at the National University of Singapore from the 17th-21st of June 2024, more details to follow.

The Capra meeting is an annual workshop on the topic of radiation reaction in general relativity. The primary focus of these workshops is the development of the gravitational self-force approach to model extreme mass ratio inspirals and further our understanding of the two-body problem in general relativity. This is done in synergy with other well known modeling techniques such as post-Newtonian theory and numerical relativity. The canonical example of an extreme mass-ratio Inspiral (EMRI) is the inspiral of a stellar-mass compact object into a supermassive black hole. Gravitational waves from these systems are a promising target for the future space-based detector LISA, which is currently scheduled to launch in the mid-2030’s by the European Space Agency with support from NASA. The study of radiation reaction and  self-force is not limited to EMRIs, and a range of topics and applications to other areas of gravitational physics have been discussed at past Capra meetings; an example is the scattering of massive particles, which is currently an active area of research. The format of the meeting is an amalgamation of a daily invited review talk, short contributed talks and organized discussion sessions. The tradition of the Capra meetings is that there is no registration fee for participating.

At the Capra meetings we provide equal opportunities regardless of gender, age, race, disability, ethnic origin, religion, sexual orientation, socio-economic status, civil status, or family status.  We encourage all those with an interest in research on self-force and extreme mass-ratio inspirals to register for this meeting and apply to contribute a talk by submitting an abstract. Past and current attendees should encourage a broad spectrum of their colleagues to apply.

Meeting Website

10th International Conference on Gravitation and Cosmology: New Horizons and Singularities in Gravity, Dec 6-9 2023 in India

The 10th International Conference on Gravitation and Cosmology (ICGC) will be hosted by the Indian Institute of Technology (IIT) Guwahati, India during December 6 - 9, 2023. Since its inception in 1987, ICGC meetings are held once in four years and are organised by the Indian Association for General Relativity and Gravitation (IAGRG). The tenth edition of this conference at IIT Guwahati aims to bring together experts working in the area of Gravitation and Cosmology to discuss the recent developments, present status and exchange ideas while providing young researchers from India an opportunity for interaction with experts. The programme will have a series of plenary lectures, with parallel and poster sessions.

Topics to be covered during the meeting:

  • Classical & Quantum Gravity
  • Gravitational Waves
  • Astrophysical Relativity
  • Cosmology


Starts 06.12.2023, 09:00
Ends 09.12.2023, 18:00
at IIT Guwahati, Asia/Kolkata

Conference Website

Astrophysics with the Laser Interferometer Space Antenna

The Laser Interferometer Space Antenna (LISA) will be a transformative experiment for gravitational wave astronomy, and, as such, it will offer unique opportunities to address many key astrophysical questions in a completely novel way. The synergy with ground-based and space-born instruments in the electromagnetic domain, by enabling multi-messenger observations, will add further to the discovery potential of LISA. The next decade is crucial to prepare the astrophysical community for LISA’s first observations. This review outlines the extensive landscape of astrophysical theory, numerical simulations, and astronomical observations that are instrumental for modeling and interpreting the upcoming LISA datastream. To this aim, the current knowledge in three main source classes for LISA is reviewed; ultra-compact stellar-mass binaries, massive black hole binaries, and extreme or interme-diate mass ratio inspirals. The relevant astrophysical processes and the established modeling techniques are summarized. Likewise, open issues and gaps in our understanding of these sources are highlighted, along with an indication of how LISA could help making progress in the different areas. New research avenues that LISA itself, or its joint exploitation with upcoming studies in the electromagnetic domain, will enable, are also illustrated. Improvements in modeling and analysis approaches, such as the combination of numerical simulations and modern data science techniques, are discussed. This review is intended to be a starting point for using LISA as a new discovery tool for understanding our Universe.

Link on Springer.com

Gravitational Waves meet Amplitudes in the Southern Hemisphere, August 14 – September 1, 2023, ICTP-SAIFR, São Paulo

The central theme of the program will be the application of particle physics methods to the calculation of processes relevant to gravitational-wave phenomenology.

We intend to bring together both experts and younger theorists from three distinct communities:

  • Classical General Relativity, including both analytic and numerical approaches;
  • Effective Field Theories; and
  • Scattering Amplitudes.

We also want to bring theorists into contact with observers and analysis specialists from LIGO-Virgo-KAGRA.

We intend to have one talk a day, with lots of time available for informal discussions and collaboration. The building hosting the program is brand new with comfortable discussion areas, right next to the intended hotel in the tourist center of São Paulo. We hope to have fifteen to twenty people in residence each week.

This activity will be preceded by the School on Modern Amplitude Methods for Gauge and Gravity Theories. Selected students attending the school have the option of remaining as observers.

There is no registration fee.

Organizers:
Fernando Febres Cordero (Florida State University, USA)
David Kosower (Université Paris–Saclay, France)
Patricia Schmidt (University of Birmingham, UK)
Riccardo Sturani (ICTP-SAIFR/IFT-UNESP, Brazil)

Conference Website