236 citations · 457 across the 5 of their papers we have counts for
4 papers · 1 filter
Exploring the latitude and depth dependence of solar Rossby waves using ring-diagram analysis
B. Proxauf, L. Gizon, B. Löptien +3
Global-scale Rossby waves have recently been unambiguously identified on the Sun. Here we study the latitude and depth dependence of the Rossby wave eigenfunctions. By applying hel…
Measuring the Wilson depression of sunspots using the divergence-free condition of the magnetic field vector
B. Löptien, A. Lagg, M. van Noort +1
Context: The Wilson depression is the difference in geometric height of unit continuum optical depth between the sunspot umbra and the quiet Sun. Measuring the Wilson depression is…
Global-scale equatorial Rossby waves as an essential component of solar internal dynamics
Björn Löptien, Laurent Gizon, Aaron C. Birch +5
The Sun's complex dynamics is controlled by buoyancy and rotation in the convection zone and by magnetic forces in the atmosphere and corona. While small-scale solar convection is…
Measuring solar active region inflows with local correlation tracking of granulation
B. Löptien, A. C. Birch, T. L. Duvall +3
Context. Local helioseismology has detected spatially extended converging surface flows into solar active regions. These play an important role in flux-transport models of the sola…