Objective
With the Laser Interferometer Space Antenna (LISA) due for launch in 2035, sources of gravitational waves in the millihertz frequency band are garnering significant attention. Of special interest are extreme-mass-ratio inspirals (EMRIs): the gradual radiative inspiral of compact objects into massive black holes in galactic centres. These binary systems exhibit highly relativistic and complex orbits, sending off hundreds of thousands of detectable gravitational-wave cycles in the LISA band. These properties make EMRIs the ultimate probe of strong gravity, and a key target for LISA. However, those same properties also make EMRIs extremely challenging to model, with computational approaches used for LIGO binaries — such as numerical relativity — being largely unworkable for such systems.
EMRI modeling efforts employ the machinery of black hole perturbation theory, under a dedicated subfield called gravitational self-force theory. The standard two-timescale framework, although successful, is computationally intensive, still greatly incomplete, and far from being ready for LISA data analysis. This project aims to dramatically improve and complement this framework through a hybrid approach that integrates rapid and efficient analytical methods from post-Newtonian theory into gravitational self-force calculations. Specifically, our approach is based on deriving highly accurate analytical approximants for the inspiral evolution through a double expansion in both orbital velocity and mass ratio, to very high order. For the first time, we will apply our method for completely generic, astrophysically realistic, eccentric EMRI configurations, with a spinning primary, orbital plane precession, and the full effect of the first-order self-force, including post-adiabatic conservative corrections. We will also apply our method in the study of black hole scattering with a spinning primary, informing ongoing synergies between self-force theory and effective field theory treatments.
Fields of science (EuroSciVoc)
CORDIS classifies projects with EuroSciVoc, a multilingual taxonomy of fields of science, through a semi-automatic process based on NLP techniques. See: The European Science Vocabulary.
CORDIS classifies projects with EuroSciVoc, a multilingual taxonomy of fields of science, through a semi-automatic process based on NLP techniques. See: The European Science Vocabulary.
- natural sciences physical sciences astronomy
- natural sciences physical sciences optics laser physics
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Keywords
Project’s keywords as indicated by the project coordinator. Not to be confused with the EuroSciVoc taxonomy (Fields of science)
Project’s keywords as indicated by the project coordinator. Not to be confused with the EuroSciVoc taxonomy (Fields of science)
Programme(s)
Multi-annual funding programmes that define the EU’s priorities for research and innovation.
Multi-annual funding programmes that define the EU’s priorities for research and innovation.
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HORIZON.1.2 - Marie Skłodowska-Curie Actions (MSCA)
MAIN PROGRAMME
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Topic(s)
Calls for proposals are divided into topics. A topic defines a specific subject or area for which applicants can submit proposals. The description of a topic comprises its specific scope and the expected impact of the funded project.
Calls for proposals are divided into topics. A topic defines a specific subject or area for which applicants can submit proposals. The description of a topic comprises its specific scope and the expected impact of the funded project.
Funding Scheme
Funding scheme (or “Type of Action”) inside a programme with common features. It specifies: the scope of what is funded; the reimbursement rate; specific evaluation criteria to qualify for funding; and the use of simplified forms of costs like lump sums.
Funding scheme (or “Type of Action”) inside a programme with common features. It specifies: the scope of what is funded; the reimbursement rate; specific evaluation criteria to qualify for funding; and the use of simplified forms of costs like lump sums.
HORIZON-TMA-MSCA-PF-EF - HORIZON TMA MSCA Postdoctoral Fellowships - European Fellowships
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Call for proposal
Procedure for inviting applicants to submit project proposals, with the aim of receiving EU funding.
Procedure for inviting applicants to submit project proposals, with the aim of receiving EU funding.
(opens in new window) HORIZON-MSCA-2025-PF
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Net EU financial contribution. The sum of money that the participant receives, deducted by the EU contribution to its linked third party. It considers the distribution of the EU financial contribution between direct beneficiaries of the project and other types of participants, like third-party participants.
SO17 1BJ SOUTHAMPTON
United Kingdom
The total costs incurred by this organisation to participate in the project, including direct and indirect costs. This amount is a subset of the overall project budget.