Current activities:


Recent observations from the Sunrise balloon-borne solar telescope have enabled us to reach an unprecedented high spatial resolution on the solar surface with the near-ultraviolet photospheric and chromospheric images as well as the magnetograms.
Within the Ground Based Solar Observations (GBSO) group at the Max Planck Institute for Solar System Research (MPS) in Katlenburg-Lindau, in Germany, I'm currently using these high resolution observations to investigate the dynamics and structure of the Ca II H bright features which correspond to the solar upper photosphere and lower chromosphere. In addition, I study the relation between the dynamics and structure of these Ca II 397 nm bright structures in images obtained by the Sunrise Filter Imager (SuFI) and their corresponding photospheric vector magnetic field computed from the Imaging Magnetogram eXperiment (IMaX) observations.

 

Figure: Grainy sun: the images show the so-called granulation in four different wavelengths in near ultraviolet light. The image section depicts 1/20,000 of the entire surface. The light structures are the foundational elements of the magnetic fields and four examples of those bright features under study are marked in the Ca II H core line image. (Images credit: MPS)

 

The targets under study are in a quiet Sun region and close to disc-centre.

Supervisors: Professor Sami Solanki, Dr. Alex Feller, Dr. Johann Hirzberger Dr. Andreas Lagg, and Dr. Anna Pietarila