Zobrazeno 1 - 10
of 34
pro vyhledávání: '"Nicholas A. Featherstone"'
Autor:
Lydia Korre, Nicholas A. Featherstone
Publikováno v:
The Astrophysical Journal, Vol 964, Iss 2, p 162 (2024)
The propagation of meridional circulation below the base of the convection zone (CZ) of low-mass stars may play a crucial role in the transport of angular momentum and also significantly contribute to the transport of chemical species and magnetic fi
Externí odkaz:
https://doaj.org/article/2365f605d1714bd8a51673cf4f44d70d
Autor:
J. R. Fuentes, Bradley W. Hindman, Junwei Zhao, Catherine C. Blume, Maria E. Camisassa, Nicholas A. Featherstone, Thomas Hartlep, Lydia Korre, Loren I. Matilsky
Publikováno v:
The Astrophysical Journal, Vol 961, Iss 1, p 78 (2024)
Meridional circulation regulates the Sun’s interior dynamics and magnetism. While it is well accepted that meridional flows are poleward at the Sun’s surface, helioseismic observations have yet to provide a definitive answer for the depth at whic
Externí odkaz:
https://doaj.org/article/3ee0915fecb142819eb03faa7a12f9a0
Publikováno v:
Monthly Notices of the Royal Astronomical Society: Letters. 507:L67-L71
Numerical simulations are used to investigate large-scale (mean) magnetic field generation in rotating spherical dynamos. Beyond a certain threshold, we find that the magnitude of the mean magnetic field becomes nearly independent of the system rotat
Publikováno v:
Geophysical Journal International. 227:1228-1245
SUMMARY The large-scale dynamics of convection-driven dynamos in a spherical shell, as relevant to the geodynamo, is analysed with numerical simulation data and asymptotic theory. An attempt is made to determine the asymptotic size (with the small pa
Autor:
Loren I. Matilsky, Bradley W. Hindman, Nicholas A. Featherstone, Catherine C. Blume, Juri Toomre
A major outstanding problem in solar physics is the confinement of the solar tachocline, the thin shear layer that separates nearly solid-body rotation in the radiative interior from strong differential rotation in the convection zone. Here, we prese
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::fd0bb0bf921a8933a5c4a4fcd401cd4a
http://arxiv.org/abs/2206.12920
http://arxiv.org/abs/2206.12920
Autor:
Lydia Korre, Nicholas A. Featherstone
Publikováno v:
Astrophys J
Overshooting of turbulent motions from convective regions into adjacent stably stratified zones plays a significant role in stellar interior dynamics as this process may lead to mixing of chemical species, and contribute to the transport of angular m
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::0e7a26229e724cf38610f94e12d6acbf
https://europepmc.org/articles/PMC8886497/
https://europepmc.org/articles/PMC8886497/
Publikováno v:
The Astrophysical Journal. 938:65
The solar convection zone rotates differentially, with its equatorial region rotating more rapidly than the polar regions. This form of differential rotation, also observed in many other low-mass stars, is understood to arise when Coriolis effects ar
Autor:
Andrey M. Stejko, Alexander G. Kosovichev, Nicholas A. Featherstone, Gustavo Guerrero, Bradley W. Hindman, Loren I. Matilsky, Jörn Warnecke
Publikováno v:
The Astrophysical Journal
Global hydrodynamic simulations of internal solar dynamics have focused on replicating the conditions for solar-like differential rotation and meridional circulation using the results of helioseismic inversions as a constraint. Inferences of meridion
Publikováno v:
Proceedings of the National Academy of Sciences of the United States of America
Significance The entire Sun completes a full rotation in roughly 28 d. Within the outer 30% of the solar interior, turbulent thermal convection powers fluid outward. Rotation deflects the fluid and determines the morphology of eddies and large-scale
Publikováno v:
The Astrophysical Journal. 898:120