Speaker
Tanmoy Samanta
(Indian Institute of Astrophysics)
Description
The solar chromosphere and transition region plays an important role in understanding
the interaction between the relatively cool photospheric plasma and the hot
multi-million degree corona. It is only beginning to be understood where and how the
required energy is generated, transported and dissipated. It appears that the
chromosphere and transition region plays a key role in the process. Dynamic jets as
observed with high resolution Interface Region Imaging Spectrograph (IRIS) are
currently being studied. We found that these jets are associated with coronal
dynamics. This association between jets seen in the chromosphere and material heated
to millions degree temperatures seen in the corona, suggests that they play an
important role in supplying and also heating the plasma to maintain the corona. Our
observations indicates that a common process which generates small-scale jets also
generates propagating intensity disturbances (PDs) in the corona. It is most likely
that the observed PDs are magneto-acoustic waves which propagate to higher heights
while the cool jet material falls back.
Primary author
Tanmoy Samanta
(Indian Institute of Astrophysics)
