202 citations · 353 across the 5 of their papers we have counts for
7 papers
Characterization of magneto-convection in sunspots -- The Gough & Tayler stability criterion in MURaM sunspot simulations
M. Schmassmann, M. Rempel, N. Bello González +2
We analyse a sunspot simulation in an effort to understand the origin of the convective instabilities giving rise to the penumbral and umbral distinct regimes. We applied the crite…
On the (in)stability of sunspots
Hanna Strecker, Wolfgang Schmidt, Rolf Schlichenmaier +1
The stability of sunspots is one of the long-standing unsolved puzzles in the field of solar magnetism. We study the effects that destabilise and stabilise the flux tube of a simul…
Superstrong photospheric magnetic fields in sunspot penumbrae
A. Siu-Tapia, A. Lagg, M. van Noort +2
Recently, there have been some reports of unusually strong photospheric magnetic fields (which can reach values of over 7 kG) inferred from Hinode SOT/SP sunspot observations withi…
Small-scale dynamo simulations: Magnetic field amplification in exploding granules and the role of deep and shallow recirculation
Matthias Rempel
We analyze recent high resolution photospheric small-scale dynamo simulations that were computed with the MURaM radiative MHD code. We focus the analysis on newly forming downflow…
Efficient small-scale dynamo in solar convection zone
H. Hotta, M. Rempel, T. Yokoyama
We investigate small-scale dynamo action in the solar convection zone through a series of high resolution MHD simulations in a local Cartesian domain with 1 (solar radius)…
Penumbral structure and outflows in simulated sunspots
M. Rempel, M. Schüssler, R. H. Cameron +1
Sunspots are concentrations of magnetic field on the visible solar surface that strongly affect the convective energy transport in their interior and surroundings. The filamentary…