The fine-scale structure of chromospheric jets and their formation process

But their contribution to heating the corona is still under debate. In this thesis, we present the evidence of heating associated with Type II spicule in the transition region and corona. When observed in transition region lines, Type II spicules show intensity enhancement and broadening.

In the corona, we found intensity enhancement associated with a collection of Type II spicules. Another important candidate for coronal heating is nanoflares. Our study on the energetics of nanoflare-like brightening in the transition region shows that they don’t produce enough energy to sustain the million-kelvin corona.<br><br>