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Content archived on 2024-06-18

Mastering the dusty and magnetized Interstellar Screen to Test Inflation Cosmology

Objective

How did the Universe begin? The prevailing idea is that the Bang of the Big Bang was an early burst of exponential expansion, dubbed inflation. A key prediction of inflation is that it generated gravitational waves. The corresponding ripples in the space-time geometry left an imprint in the polarisation of the Cosmic Microwave Background (CMB). A new generation of experiments are making a major step towards this signal by mapping the microwave sky polarisation with an unprecedented sensitivity and combination of sky coverage, angular resolution and wavelengths. These experiments may show whether the energy scale of inflation predicted by the simplest models is correct. However, unlike for temperature anisotropies, Galactic foregrounds have larger amplitude than any putative primordial B-mode signal. The signature of cosmic inflation will not be detected, unless contamination associated with the dusty and magnetized interstellar medium in the Galaxy is removed with the required accuracy and confidence. Within the competitive field of CMB studies, the MISTIC project proposes a unique contribution to the search for its B-mode polarisation. The MISTIC team has the unmatched ambition and capability to tie the analysis of polarisation data and component separation to state-of-the-art understanding and modelling of the dusty magnetized interstellar medium. Our project goal is to achieve the breakthroughs in the fields of Galactic astrophysics, microwave sky modelling, and component separation, required to achieve the best sensitivity on the B-mode CMB polarisation. Our work plan bridges data analysis, physical modelling, sky modelling and component separation into an iterative process that will take full advantage of the uniqueness and complementarities of expertise and data gathered in the MISTIC project.

Fields of science (EuroSciVoc)

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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.

Call for proposal

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ERC-2010-AdG_20100224
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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-AG - ERC Advanced Grant

Host institution

CENTRE NATIONAL DE LA RECHERCHE SCIENTIFIQUE CNRS
EU contribution
€ 1 755 000,00
Address
RUE MICHEL ANGE 3
75794 PARIS
France

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Region
Ile-de-France Ile-de-France Paris
Activity type
Research Organisations
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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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Beneficiaries (1)

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