SOLARNET Conference: The Many Scales of the Magnetic Sun

Co-existence of self-similarity and anomalous scaling in photospheric turbulent small-scale magnetic fields.

Not scheduled

20m

Haus H, Telegrafenberg

Poster presentation 2) Small and large-scale magnetic features – from bright points to sunspots (Observations and Theory) Small and large-scale magnetic features – from bright points to sunspots (Observations and Theory)

Speaker

Dr Andrei Gorobets (Leibniz-KIS)

Description

Solar photosphere is seen as a turbulent magnetized medium at small scales. Earlier, we have developed a novel frame-work to characterize small-scale magnetic fields in the photosphere using concepts of stochastic thermodynamics and discovered applicability of the so-called fluctuation relations for evolution of these fields (Gorobets et al. 2016, 2017; Gorobets & Berdyugina 2019).
Here, we employ these concepts in our studies of the self-similarity of small-scale magnetic field fluctuations, determine the structure function exponents and investigate their anomalous scaling.