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Striation and convection in penumbral filaments
H. C. Spruit, G. B. Scharmer, M. G. Löfdahl
Observations with the 1-m Swedish Solar Telescope of the flows seen in penumbral filaments are presented. Time sequences of bright filaments show overturning motions strikingly sim…
Small-scale convection signatures associated with strong plage solar magnetic field
G. Narayan, G. B. Scharmer
In this work, we study and quantify properties of strong-field small-scale convection and compare observed properties with those predicted by numerical simulations. We analyze spec…
High-order aberration compensation with Multi-frame Blind Deconvolution and Phase Diversity image restoration techniques
G. B. Scharmer, M. G. Löfdahl, T. I. M. van Werkhoven +1
Context. For accurately measuring intensities and determining magnetic field strengths of small-scale solar (magnetic) structure, knowledge of and compensation for the point spread…
S-DIMM+ height characterization of day-time seeing using solar granulation
G. B. Scharmer, T. I. M. van Werkhoven
To evaluate site quality and to develop multi-conjugative adaptive optics systems for future large solar telescopes, characterization of contributions to seeing from heights up to…