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Content archived on 2024-06-20

Construction of realistic initial data coalescing binary black holes in circular orbits

Objective

The beginning of the activities of ground-based interferometric gravitational observatories for detecting gravitational waves, urgently demands the existence of realistic and detailed theoretical predictions for the expected gravitational radiation.

This proves to be essential both for the analysis of the received signals (physical information plus noise) and for their interpretation. Black hole coalescence is the astrophysical source which stands as the most promising candidate for early detection. The detailed theoretical description of this phenomenon and its corresponding gravitational waves demand the use of numerical techniques.

The first step in such a numerical study is the determination of the so-called initial data. In the context of quasi-circular inspiraling binary black holes, the match of these numerical techniques with recently developed analytical methods can be crucial in order to identify the relevant initial data. This defines the fundamental objective of this project: constructing a set of astrophysically realistic initial data for highly detailed numerical evolutions.

In order to achieve this goal, the work is structured in two parts:
- setting of a well-posed system of elliptic partial differential equations which constrain the physical data; and
- numerically solving this system of equations by applying spectral methods in which the Meudon group represents a world-leading team.

The two parts will be carried out consecutively and will demand the use of very different strategies. For the first one, the employed methods will be basically analytical, while the second one will consist in the construction of a C++ code. The Meudon group represents a perfect environment to develop both stages.

The final outcome of the project will provide the necessary input for high quality predictions of gravitational waveforms, that could be performed by collaborating (European) teams.

Fields of science (EuroSciVoc)

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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)

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.

Call for proposal

Procedure for inviting applicants to submit project proposals, with the aim of receiving EU funding.

FP6-2002-MOBILITY-5
See other projects for this call

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.

EIF - Marie Curie actions-Intra-European Fellowships

Coordinator

OBSERVATOIRE DE PARIS
EU contribution
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Address
Avenue Denfert-Rochereau, 77
PARIS
France

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Total cost

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.

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