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Chromospheric Heating by Magnetohydrodynamic Waves and Instabilities

Srivastava, A. K.; Murawski, K.; Cally, P. S. +7 more

The importance of the chromosphere in the mass and energy transport within the solar atmosphere is now widely recognized. This review discusses the physics of magnetohydrodynamic waves and instabilities in large-scale chromospheric structures as well as in magnetic flux tubes. We highlight a number of key observational aspects that have helped our…

Multiband Study of a Bidirectional Jet Occurred in the Upper Chromosphere

Reeves, Katharine K.; Ni, Lei; Lin, Jun +3 more

We present a study of a jet observed by the Solar Dynamics Observatory (SDO) and the Interface Region Imaging Spectrograph (IRIS), which provide high spatial-temporal resolution observational data of (extreme) ultraviolet images, spectra, and magnetograms. The jet was observed in multiple bands of AIA and manifested clear bidirectional flows in IR…

Scientific considerations for future spectroscopic measurements from space of activity on the Sun

Holman, Gordon D.

High-resolution UV and X-ray spectroscopy are important to understanding the origin and evolution of magnetic energy release in the solar atmosphere, as well as the subsequent evolution of heated plasma and accelerated particles. Electromagnetic radiation is observed from plasma heated to temperatures ranging from about 10 kK to above 10 MK, from …