SubsidieMeestersLifting stellar structure and evolution to higher dimensions in the era of space asteroseismology
4D-STAR aims to revolutionize stellar models by developing a 3+1D theory of rotating spheroids, enhancing age accuracy and understanding of stellar evolution using asteroseismic data.
Projectdetails
Introduction
Stars are the source of radiation, chemistry, and life in the Universe. Models of how stars live are key ingredients in planetary, astrophysical, and cosmological research. A star is a hot plasma rotating around an axis. Small stars like the Sun rotate slowly, but bigger ones with more mass rotate faster, shaping them as flattened spheroids.
Current Limitations
Yet, current stellar models simplify the flattening or treat stars as spheres during their lives, using 1 spatial and 1 time dimension (1+1D). Rotation and magnetism induce transport processes in 3 spatial dimensions, which change over time, requiring a 3+1D treatment. Current age-dating of stars is done from 1+1D models, with uncertainties up to 1000%.
Importance of Accurate Age-Dating
Accurate ages of stars are the dominant missing ingredient to understand stellar and planetary evolution, the emergence of life, and the chemistry in our Universe.
Project Overview
4D-STAR will answer the fundamental question of how rotating spheroids evolve in time and build up their chemistry during their lives. We will develop a new 3+1D theory of stellar rotation for flattened spheroids evolving over millions to billions of years, from birth to death.
Methodology
Lifting stellar models to 3+1D can only be done now, using asteroseismic data of thousands of stars in all life phases. Such data reveal nonradial oscillations, or starquakes, allowing us to infer internal stellar rotation, magnetism, chemistry, and the ages of stars with 10% accuracy.
Deliverables
4D-STAR will provide open-source modules to compute the evolution of rotating magnetic stars in 3+1D, calibrated to asteroseismic observables of single stars and stars in binaries and clusters.
Transdisciplinary Approach
4D-STAR brings a paradigm shift based on mathematical modeling, astrophysics, and computational science. Its breadth, challenges, and goals require a transdisciplinary integration of four teams led by:
- An asteroseismologist
- A theoretician specialized in transport
- A hydrodynamicist
- A stellar evolution software developer
Each team member has a proven track record.
Financiële details & Tijdlijn
Financiële details
| Subsidiebedrag | € 9.938.446 |
| Totale projectbegroting | € 9.938.446 |
Tijdlijn
| Startdatum | 1-9-2023 |
| Einddatum | 31-8-2029 |
| Subsidiejaar | 2023 |
Partners & Locaties
Projectpartners
- KATHOLIEKE UNIVERSITEIT LEUVENpenvoerder
- COMMISSARIAT A L ENERGIE ATOMIQUE ET AUX ENERGIES ALTERNATIVES
- UNIVERSITE DE TOULOUSE
- TRUSTEES OF DARTMOUTH COLLEGE
Land(en)
Vergelijkbare projecten binnen European Research Council
| Project | Regeling | Bedrag | Jaar | Actie |
|---|---|---|---|---|
MANUNKIND: Determinants and Dynamics of Collaborative ExploitationThis project aims to develop a game theoretic framework to analyze the psychological and strategic dynamics of collaborative exploitation, informing policies to combat modern slavery. | ERC STG | € 1.497.749 | 2022 | Details |
Elucidating the phenotypic convergence of proliferation reduction under growth-induced pressureThe UnderPressure project aims to investigate how mechanical constraints from 3D crowding affect cell proliferation and signaling in various organisms, with potential applications in reducing cancer chemoresistance. | ERC STG | € 1.498.280 | 2022 | Details |
Uncovering the mechanisms of action of an antiviral bacteriumThis project aims to uncover the mechanisms behind Wolbachia's antiviral protection in insects and develop tools for studying symbiont gene function. | ERC STG | € 1.500.000 | 2023 | Details |
The Ethics of Loneliness and SociabilityThis project aims to develop a normative theory of loneliness by analyzing ethical responsibilities of individuals and societies to prevent and alleviate loneliness, establishing a new philosophical sub-field. | ERC STG | € 1.025.860 | 2023 | Details |
MANUNKIND: Determinants and Dynamics of Collaborative Exploitation
This project aims to develop a game theoretic framework to analyze the psychological and strategic dynamics of collaborative exploitation, informing policies to combat modern slavery.
Elucidating the phenotypic convergence of proliferation reduction under growth-induced pressure
The UnderPressure project aims to investigate how mechanical constraints from 3D crowding affect cell proliferation and signaling in various organisms, with potential applications in reducing cancer chemoresistance.
Uncovering the mechanisms of action of an antiviral bacterium
This project aims to uncover the mechanisms behind Wolbachia's antiviral protection in insects and develop tools for studying symbiont gene function.
The Ethics of Loneliness and Sociability
This project aims to develop a normative theory of loneliness by analyzing ethical responsibilities of individuals and societies to prevent and alleviate loneliness, establishing a new philosophical sub-field.
Vergelijkbare projecten uit andere regelingen
| Project | Regeling | Bedrag | Jaar | Actie |
|---|---|---|---|---|
Exploring the impact of Stellar Multiplicity on planet formation Across Disc EvolutionThe Stellar-MADE project aims to enhance understanding of planet formation by studying disc dynamics and multiplicity effects in young stellar systems through advanced simulations. | ERC STG | € 1.246.258 | 2022 | Details |
Model Atmospheres of the Progenitor Stars to Supernovae and Black Holes: Finally in 3D!SUPERSTARS-3D aims to develop the first 3D model atmospheres for hot, massive stars to enhance understanding and interpretation of their radiation and evolution, benefiting various astronomical fields. | ERC COG | € 1.995.750 | 2022 | Details |
StarDance: the non-canonical evolution of stars in clustersThe StarDance project aims to explore how stellar rotation and binary interactions in star clusters create multiple and non-canonical stellar populations, challenging existing astrophysical theories. | ERC ADG | € 2.492.250 | 2023 | Details |
The Quest for MAGNetIc Fields in A and F TYpe StarsMAGNIFY aims to investigate internal and surface magnetic fields in A&F stars using asteroseismology and stellar spot analysis to understand their origins and evolution. | ERC COG | € 1.999.933 | 2024 | Details |
Exploring the impact of Stellar Multiplicity on planet formation Across Disc Evolution
The Stellar-MADE project aims to enhance understanding of planet formation by studying disc dynamics and multiplicity effects in young stellar systems through advanced simulations.
Model Atmospheres of the Progenitor Stars to Supernovae and Black Holes: Finally in 3D!
SUPERSTARS-3D aims to develop the first 3D model atmospheres for hot, massive stars to enhance understanding and interpretation of their radiation and evolution, benefiting various astronomical fields.
StarDance: the non-canonical evolution of stars in clusters
The StarDance project aims to explore how stellar rotation and binary interactions in star clusters create multiple and non-canonical stellar populations, challenging existing astrophysical theories.
The Quest for MAGNetIc Fields in A and F TYpe Stars
MAGNIFY aims to investigate internal and surface magnetic fields in A&F stars using asteroseismology and stellar spot analysis to understand their origins and evolution.