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The Baryon Picture of the Cosmos

Objective

The cosmological paradigm of structure formation is both extremely successful and plagued by many enigmas. Not only the nature of the main matter component, dark matter, shaping the structure skeleton in the form of a cosmic web, is mysterious; but also half of the ordinary matter (i.e. baryons) at late times of the cosmic history, remains unobserved, or hidden! ByoPiC focuses on this key and currently unresolved issue in astrophysics and cosmology: Where and how are half of the baryons hidden at late times? ByoPiC will answer that central question by detecting, mapping, and assessing the physical properties of hot ionised baryons at large cosmic scales and at late times. This will give a completely new picture of the cosmic web, added to its standard tracers, i.e. galaxies made of cold and dense baryons. To this end, ByoPiC will perform the first statistically consistent, joint analysis of complementary multiwavelength data: Planck observations tracing hot, ionised baryons via the Sunyaev-Zeldovich effect, optimally combined with optical and near infrared galaxy surveys as tracers of cold baryons. This joint analysis will rely on innovative statistical tools to recover all the (cross)information contained in these data in order to detect most of the hidden baryons in cosmic web elements such as (super)clusters and filaments. These newly detected elements will then be assembled to reconstruct the cosmic web as traced by both hot ionised baryons and galaxies. Thanks to that, ByoPiC will perform the most complete and detailed assessment of the census and contribution of hot ionised baryons to the total baryon budget, and identify the main physical processes driving their evolution in the cosmic web. Catalogues of new (super)clusters and filaments, and innovative tools, will be key deliverable products, allowing for an optimal preparation of future surveys.

Fields of science (EuroSciVoc)

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Programme(s)

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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.

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.

ERC-ADG - Advanced Grant

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Call for proposal

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

(opens in new window) ERC-2015-AdG

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Host institution

CENTRE NATIONAL DE LA RECHERCHE SCIENTIFIQUE CNRS
Net EU contribution

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.

€ 2 488 350,00
Address
RUE MICHEL ANGE 3
75794 PARIS
France

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Region
Ile-de-France Ile-de-France Hauts-de-Seine
Activity type
Research Organisations
Links
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.

€ 2 488 350,00

Beneficiaries (1)

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