PICOGAL
Financiado
Mind the Gap from Plasma Kinetics to Cosmological Galaxy Formation
In the modern picture of galaxy formation, baryonic feedback is critical for shaping galaxies and regulating star formation. On small scales, feedback results from transporting momentum, radiation, thermal and relativistic particl...
In the modern picture of galaxy formation, baryonic feedback is critical for shaping galaxies and regulating star formation. On small scales, feedback results from transporting momentum, radiation, thermal and relativistic particles but current-day magneto-hydrodynamic simulations of galaxies and galaxy clusters often neglect or over-simplify these transport processes. Electrons transport heat and cosmic rays exchange momentum and energy with the thermal plasma but both species are erroneously assumed to diffuse along magnetic field lines. However, this is in conflict with the latest plasma simulations and observations in the solar wind and of the galactic center, which imply efficient wave-particle scatterings so that the electrons and cosmic rays are advected with whistler and Alfvén waves, respectively. We propose a coordinated multi-scale approach that combines plasma kinetic and global fluid models of particle acceleration and transport in galaxies and galaxy clusters with unprecedented accuracy. In particular, we will run novel plasma simulations of shocks at supernovae and galaxy clusters, and study the plasma-wave mediated transport of electrons and cosmic rays. We will employ information field theory to coarse grain these models to derive effective transport coefficients, which will be implemented in macroscopic fluid models of cosmic ray transport and thermal conduction. Simulating feedback by cosmic rays, radiation and supernovae in cosmologically forming galaxies on scales from dwarfs to our Milky Way provides transformative changes of the physics accuracy of these models. This is complemented by cosmological galaxy cluster simulations with improved physics to understand the origin of the cluster-core bimodality, giant radio relics and halos. Comparing mock multi-frequency observables from radio to gamma-rays to data enables falsification or validation of the underlying plasma models and represents a major step towards predictive galaxy formation.
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Duración del proyecto: 73 meses
Fecha Inicio: 2021-05-05
Fecha Fin: 2027-06-30
Fecha Fin: 2027-06-30
Línea de financiación: concedida
El organismo H2020 notifico la concesión del proyecto el día 2021-05-05
Línea de financiación objetivo
El proyecto se financió a través de la siguiente ayuda:
ERC-2020-ADG:
ERC ADVANCED GRANT
Cerrada
hace 4 años
Presupuesto
El presupuesto total del proyecto asciende a
3M€
Líder del proyecto
LEIBNIZINSTITUT FUR ASTROPHYSIK POTSDAM AIP
No se ha especificado una descripción o un objeto social para esta compañía.
Perfil tecnológico
TRL
4-5
Perfil tecnológico
TRL
4-5
369.14K€ |
Participante