Project description
Leveraging individual gravitational wave signals to work out the nature of black hole binaries
Astrophysical information from individual gravitational wave (GW) signals can be derived from analysis of environmental effects (EEs) by modelling perturbations to the vacuum emission of binary sources. However, retrieving this information requires new EE models that can distinguish unique GW signatures from various physical mechanisms and astrophysical environments. Supported by the Marie Skłodowska-Curie Actions programme, the AstroWaveforms project aims to create a novel EE model based on Fourier decomposition of astrophysical perturbative forces, together with a modular Python package to apply the model in advanced waveform templates. The latter will be used to conduct parameter inference analysis, demonstrating how EEs can be leveraged to uncover the nature of black holes and differentiate between binary evolution pathways.
Objective
The study of “environmental effects” (EEs) offers the unique prospect to extract astrophysical information from individual gravitational wave (GW) signals, by modelling perturbations to the vacuum emission of binary sources. Cutting-edge numerical simulations indicate that a range of complex and previously un-modelled EEs should arise in binary systems subject to perturbative forces, due to e.g. Roemer delays, tidal fields, migration in gas, stochastic accretion, resonances in neutron star interiors. Accessing this rich astrophysical information encoded in GW signals requires entirely new models of EEs, able to characterise unique GW signatures from a range of physical mechanisms and astrophysical environments. As a Marie Curie Fellow at the NBIA, I will resolve this issue by developing a novel model for EEs based on a Fourier decomposition of astrophysical perturbative forces, and create a modular Python package to implement the model in state-of-the-art waveform templates. I will use the latter to perform first-of-their-kind parameter inference studies, demonstrating how EEs can be harnessed to reveal the physics of BH environments and distinguish between binary formation pathways. The completion of the AstroWaveforms project will result in a new state-of-the-art in the modelling of EEs, as well as a novel tool to perform parameter inference studies on both simulated and real GW data. Developments in this aspect of GW modelling are highly timely, considering the imminent release of the LVK fourth observation run catalogue, the upcoming upgrades to the LVK facilities and the recent adoption of the LISA mission.
Fields of science (EuroSciVoc)
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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.
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Project’s keywords as indicated by the project coordinator. Not to be confused with the EuroSciVoc taxonomy (Fields of science)
Programme(s)
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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)
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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.
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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
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(opens in new window) HORIZON-MSCA-2024-PF-01
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1165 KOBENHAVN
Denmark
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