Detection of photospheric impacts from chromospheric impulsive events

Multiwavelength solar observations were carried out at the THEMIS telescope in order to investigate the
propagation of the plasma jets during and after a flare occurrence. The data obtained in the Ha, Na i D2, and
Fe i 557.6 nm lines show that the perturbations detected in the higher layers due to a B-class flare do penetrate
down to the photosphere. The observational evidence of such perturbations is crucial for the identification of the
source of the solar oscillations.