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DhostHunt

Financiado

A new avenue in the hunt for dark energy

Currently, General Relativity (GR) and the standard model of particles physics are severely challenged by their inability to explain the late-time accelerated expansion of the Universe, known as the dark energy problem. The most p... ver más

31/01/2023

207K€

Presupuesto del proyecto: 207K€

Líder del proyecto

AARHUS UNIVERSITET No se ha especificado una descripción o un objeto social para esta compañía.

TRL 4-5

Ver 2 Participantes

Financiación concedida El organismo H2020 notifico la concesión del proyecto el día 2023-01-31

Línea de financiación objetivo El proyecto se financió a través de la siguiente ayuda:

MSCA-IF-2019: Individual Fellowships

I+D

Cerrada hace 5 años

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2 Participantes

207.31K€ | Lider

SAPA PROFILES NAVARRA, S.L.

187.83K€ | Participante

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Últimas noticias

29-11-2024: IDAE En las últimas 48 horas el Organismo IDAE ha otorgado 4 concesiones

29-11-2024: ECE En las últimas 48 horas el Organismo ECE ha otorgado 2 concesiones

29-11-2024: CMVAMADRID En las últimas 48 horas el Organismo CMVAMADRID ha otorgado 37 concesiones

Duración del proyecto: 34 meses Fecha Inicio: 2020-03-11
Fecha Fin: 2023-01-31

Líder del proyecto

AARHUS UNIVERSITET

TRL 4-5

Presupuesto del proyecto 207K€

Descripción del proyecto Currently, General Relativity (GR) and the standard model of particles physics are severely challenged by their inability to explain the late-time accelerated expansion of the Universe, known as the dark energy problem. The most promising scenarios aiming to explain it are the so--called scalar-tensor theories, corresponding to extensions of GR where gravity is enhanced through a new gravitational force mediated by a scalar field. The quest for phenomenological imprints of new scalar gravitational forces has been a central effort in cosmology and astrophysics over the last decade. My goal is to introduce helioseismology as a test of unprecedented accuracy in the search for new gravitational forces in Nature. The focus will be on the most general scalar-field extensions of GR, known as DHOST scalar-tensor theories. The unique ability of solar pulsations to probe the finest details of gravity in the solar interior, combined with the extreme accuracy of helioseismic observations, promises an orders-of-magnitude improvement of previous constraints. I will formulate the theoretical framework for adiabatic stellar pulsations in this context, and with sophisticated numerical techniques, I will model the associated solar pulsation eigenspectrum. A systematic statistical analysis will be devised to confront the predictions against observations making use of powerful helioseismic inversions, and derive the tightest constraints on the most general scalar-tensor theories up to date. The cosmological implications will be predicted, in accordance with ESA’s upcoming Euclid satellite mission. The project will introduce a genuinely novel, interdisciplinary line of research that will strongly impact a broad spectrum of cosmology and astrophysics. The new constraints will be pivotal for our understanding of scalar-gravity interactions in Nature, and are expected to guide the future modelling of dark energy, and scalar field theories in general.

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