Zobrazeno 1 - 10
of 171
pro vyhledávání: '"Lorén, I."'
Recent observations of Rossby waves and other more exotic forms of inertial oscillations in the Sun's convection zone have kindled the hope that such waves might be used as a seismic probe of the Sun's interior. Here we present a 3D numerical simulat
Externí odkaz:
http://arxiv.org/abs/2312.14270
We recently presented the first 3D numerical simulation of the solar interior for which tachocline confinement was achieved by a dynamo-generated magnetic field. In this followup study, we analyze the degree of confinement as the magnetic field stren
Externí odkaz:
http://arxiv.org/abs/2311.10202
Autor:
Fuentes, J. R., Hindman, Bradley W., Zhao, Junwei, Blume, Catherine C., Camisassa, Maria E., Featherstone, Nicholas A., Hartlep, Thomas, Korre, Lydia, Matilsky, Loren I.
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 which th
Externí odkaz:
http://arxiv.org/abs/2308.07513
Autor:
Matilsky, Loren I.
In many rotating fluids, the lowest-order force balance is between gravity, pressure, and rotational acceleration ('GPR' balance). Terrestrial GPR balance takes the form of geostrophy and hydrostasy, which together yield the terrestrial thermal wind
Externí odkaz:
http://arxiv.org/abs/2307.09422
Autor:
Matilsky, Loren I., Hindman, Bradley W., Featherstone, Nicholas A., Blume, Catherine C., Toomre, Juri
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:
http://arxiv.org/abs/2206.12920
Autor:
Stejko, Andrey M., Kosovichev, Alexander G., Featherstone, Nicholas A., Guerrero, Gustavo, Hindman, Bradley W., Matilsky, Loren I., Warnecke, Jörn
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
Externí odkaz:
http://arxiv.org/abs/2204.05207
Autor:
Matilsky, Loren I., Toomre, Juri
For more than thirty years, the dynamical maintenance of the thin solar tachocline has remained one of the central outstanding problems of stellar astrophysics. Three main theories have been developed to explain the tachocline's thinness, but so far
Externí odkaz:
http://arxiv.org/abs/2105.05412
Current state-of-the-art models of the solar convection zone consist of solutions to the Navier-Stokes equations in rotating, 3D spherical shells. Such models are highly sensitive to the choice of boundary conditions. Here, we present two suites of s
Externí odkaz:
http://arxiv.org/abs/2004.00208
The advent of helioseismology has determined in detail the average rotation rate of the Sun as a function of radius and latitude. These data immediately reveal two striking boundary layers of shear in the solar convection zone (CZ): a tachocline at t
Externí odkaz:
http://arxiv.org/abs/1811.00665
The dynamical origins of the Sun's tachocline and near-surface shear layer (NSSL) are still not well understood. We have attempted to self-consistently reproduce a NSSL in numerical simulations of a solar-like convection zone by increasing the densit
Externí odkaz:
http://arxiv.org/abs/1810.00115