Project description
Probing cosmic acceleration across scales
The accelerated expansion of the Universe, possibly driven by an unknown dark energy dominating the energy density of our space, remains one of nature’s great puzzles. The modified gravity approach assumes that this cosmic acceleration is not attributed to dark energy but occurs owing to a weakening of gravity on very large scales. Gravitational wave observations have offered the opportunity to study modified theories of gravity on short scales, specifically around compact objects. Funded by the Marie Skłodowska-Curie Actions programme, the MGCODE project will seek to significantly improve the constraints on cosmological modifications of gravity. Merging expertise from high-energy physics, cosmology and gravitational wave astrophysics, researchers will investigate modified gravity dynamics on different scales in a model-independent way.
Objective
The origin of the accelerated expansion of the Universe remains elusive. The so-called Dark Energy might be a manifestation of modified gravity at very large scales. While near-future observatories will improve the current bounds on such a possibility, they will not likely be conclusive as to its nature. An opportunity arises from the study of modifications of gravity at shorter scales, specifically around compact objects like black holes and neutron stars, recently made possible through gravitational-wave observations.
This project aims to dramatically improve the constraints on cosmological modifications of gravity by means of an interdisciplinary approach involving tools from High Energy Physics, and both astrophysical gravitational-wave and cosmological observations. Modified gravity dynamics at different scales can be described in a model-independent way as Effective Field Theories according to symmetry principles. Strong constraints will come from a combined theoretical and phenomenological study within this framework. Both analytical and numerical tools will be developed and employed to qualitatively and quantitatively compute the expected signatures on gravitational-wave astrophysics, allowing to hold these models against observations. The constraints will then be translated to the cosmological modifications of gravity, drawing novel conclusions as to which theories can consistently explain Dark Energy while satisfying bounds across a large range of scales.
Ultimately, this project will foster the collaboration among the High Energy Physics, Cosmology and Gravitational-Wave Astrophysics communities, enabling a much faster and efficient progress in the field of modified gravity in general. This includes a more focused use of the available computational resources for time-consuming resource-intensive tasks.
The multifaceted training and support received during the action and the competences acquired are aimed at the career development of the fellow.
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 astrophysics
- natural sciences physical sciences astronomy physical cosmology
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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-2021-PF-01
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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.
182 21 Praha 8
Czechia
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.