Zobrazeno 1 - 10
of 72
pro vyhledávání: '"Daniel Lecoanet"'
Publikováno v:
The Astrophysical Journal Letters, Vol 966, Iss 1, p L14 (2024)
Recent work suggests that inwardly propagating internal gravity waves (IGWs) within a star can be fully converted to outward magnetic waves if they encounter a sufficiently strong magnetic field. The resulting magnetic waves dissipate as they propaga
Externí odkaz:
https://doaj.org/article/31e16849cd1b43cb838892b747caefa7
Publikováno v:
Galaxies, Vol 11, Iss 4, p 89 (2023)
The cores of main sequence intermediate- and high-mass stars are convective. Mixing at the radiative–convective boundary, waves excited by the convection, and magnetic fields generated by convective dynamos all influence the main sequence and post-
Externí odkaz:
https://doaj.org/article/74151f480cb242be8991dd2b8b230997
Publikováno v:
Physical Review Research, Vol 2, Iss 2, p 023143 (2020)
Planetary rotation organizes fluid motions into coherent, long-lived swirls, known as large-scale vortices (LSVs), which play an important role in the dynamics and long-term evolution of geophysical and astrophysical fluids. Here, using direct numeri
Externí odkaz:
https://doaj.org/article/e2de4f059a974418b13005d4c996b913
Publikováno v:
Physical Review Research, Vol 2, Iss 2, p 023068 (2020)
Numerical solutions of partial differential equations enable a broad range of scientific research. The Dedalus project is a flexible, open-source, parallelized computational framework for solving general partial differential equations using spectral
Externí odkaz:
https://doaj.org/article/bf3c2a3c3c5c4ca8929407ffc0085349
Autor:
José Rafael Fuentes, Adrian Fraser, Adam Jermyn, Evan Anders, Meridith Joyce, Imogen Cresswell, Daniel Lecoanet
Stellar evolution models calculate convective boundaries using either the Schwarzschild or Ledoux criterion, but confusion remains regarding which criterion to use. Here we present a 3D hydrodynamical simulation of a convection zone and adjacent radi
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::ba08de22940e475d070895822596aa9a
http://arxiv.org/abs/2203.06186
http://arxiv.org/abs/2203.06186
Autor:
Louis-Alexandre Couston, Daniel Lecoanet, Michael Le Bars, Pierre Léard, Benjamin Favier, Patrice Le Gal
Publikováno v:
Comptes Rendus. Physique
Comptes Rendus. Physique, Académie des sciences (Paris), 2020, 21 (2), pp.151-164. ⟨10.5802/crphys.17⟩
Comptes Rendus. Physique, 2020, 21 (2), pp.151-164. ⟨10.5802/crphys.17⟩
Comptes Rendus. Physique, Académie des sciences (Paris), 2020, 21 (2), pp.151-164. ⟨10.5802/crphys.17⟩
Comptes Rendus. Physique, 2020, 21 (2), pp.151-164. ⟨10.5802/crphys.17⟩
International audience
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::31e2d4a6bc7f5003d3ebe9f56ce5350e
https://doi.org/10.5802/crphys.17
https://doi.org/10.5802/crphys.17
Publikováno v:
Geophysical Journal International
Geophysical Journal International, Oxford University Press (OUP), 2022, 228 (1), pp.337-354. ⟨10.1093/gji/ggab343⟩
Geophysical Journal International, 2022, 228 (1), pp.337-354. ⟨10.1093/gji/ggab343⟩
Geophysical Journal International, Oxford University Press (OUP), 2022, 228 (1), pp.337-354. ⟨10.1093/gji/ggab343⟩
Geophysical Journal International, 2022, 228 (1), pp.337-354. ⟨10.1093/gji/ggab343⟩
SUMMARY Seismic and magnetic observations have suggested the presence of a stably stratified layer atop Earth’s core. Such a layer could affect the morphology of the geomagnetic field and the evolution of the core, but the precise impact of this la
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::8f70d302922b5402753093dbb2d700ab
https://hal.archives-ouvertes.fr/hal-03380548
https://hal.archives-ouvertes.fr/hal-03380548
Autor:
Emma Kaufman, Daniel Lecoanet, Evan H Anders, Benjamin P Brown, Geoffrey M Vasil, Jeffrey S Oishi, Keaton J Burns
Convection in massive main sequence stars generates large scale magnetic fields in their cores which persists as they evolve up the red giant branch. The remnants of these fields may take the form of the Prendergast magnetic field, a combination of p
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::2f8d610639b19150d0f6e6d2363bed11
The Tayler instability is an important but poorly studied magnetohydrodynamic instability that likely operates in stellar interiors. The nonlinear saturation of the Tayler instability is poorly understood and has crucial consequences for dynamo actio
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::7edc621c54791dae5ffb13494876ff38
About 10 per cent of intermediate- and high-mass dwarf stars are observed to host a strong large-scale magnetic field at their surface, which is thought to be of fossil field origin. However, there are few inferences as to the magnetic field strength
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::b0e663ad8f15f07dcd52c6d81f855d93