Taylor–Couette flow for astrophysical purposes

H Ji, J Goodman - … Transactions of the Royal Society A, 2023 - royalsocietypublishing.org
A concise review is given of astrophysically motivated experimental and theoretical research
on Taylor–Couette flow. The flows of interest rotate differentially with the inner cylinder faster …

Liquid-metal experiments on geophysical and astrophysical phenomena

F Stefani - Nature Reviews Physics, 2024 - nature.com
Recent decades have seen enormous progress in the experimental investigation of
fundamental processes that are relevant to geophysical and astrophysical fluid dynamics …

A model of a tidally synchronized solar dynamo

F Stefani, A Giesecke, T Weier - Solar Physics, 2019 - Springer
We discuss a solar dynamo model of Tayler–Spruit type whose Ω Ω-effect is conventionally
produced by a solar-like differential rotation but whose α α-effect is assumed to be …

Shaken and stirred: when Bond meets Suess–de Vries and Gnevyshev–Ohl

F Stefani, R Stepanov, T Weier - Solar Physics, 2021 - Springer
We argue that the most prominent temporal features of the solar dynamo, in particular the
Hale cycle, the Suess–de Vries cycle (associated with variations of the Gnevyshev–Ohl …

A Synchronized Two-Dimensional Model of the Solar Dynamo

M Klevs, F Stefani, L Jouve - Solar Physics, 2023 - Springer
We consider a conventional α–Ω-dynamo model with meridional circulation that exhibits
typical features of the solar dynamo, including a Hale-cycle period of around 20 years and a …

From helical to standard magnetorotational instability: Predictions for upcoming liquid sodium experiments

A Mishra, G Mamatsashvili, F Stefani - Physical Review Fluids, 2022 - APS
We conduct a linear analysis of axisymmetric magnetorotational instability (MRI) in a
magnetized cylindrical Taylor-Couette (TC) flow for its standard version (SMRI) with a purely …

Nonaxisymmetric modes of magnetorotational and possible hydrodynamical instabilities in the upcoming DRESDYN-MRI experiments: Linear and nonlinear dynamics

A Mishra, G Mamatsashvili, F Stefani - Physical Review Fluids, 2024 - APS
The quest for an unambiguous detection of magnetorotational instability (MRI) in
experiments is still ongoing despite recent promising results. To conclusively identify MRI in …

Rapid parameter estimation of a two-component neutron star model with spin wandering using a Kalman filter

PM Meyers, NJ O'Neill, A Melatos… - Monthly Notices of the …, 2021 - academic.oup.com
The classic, two-component, crust-superfluid model of a neutron star can be formulated as a
noise-driven, linear dynamical system, in which the angular velocities of the crust and …

Non-axisymmetric standard magnetorotational instability in the upcoming DRESDYN-MRI experiments--linear and nonlinear dynamics

A Mishra, G Mamatsashvili, F Stefani - arXiv preprint arXiv:2307.16295, 2023 - arxiv.org
Magnetorotational instability (MRI) is the most likely mechanism for angular momentum
transport in accretion disks. However, despite numerous efforts, the quest for an …

[HTML][HTML] A Synchronized Two-Dimensional [... formula...]–[... formula...] Model of the Solar Dynamo

M Klevs, F Stefani, L Jouve - Solar Physics, 2023 - ncbi.nlm.nih.gov
We consider a conventional α–Ω-dynamo model with meridional circulation that exhibits
typical features of the solar dynamo, including a Hale-cycle period of around 20 years and a …