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Coronal plasma diagnostics from ground‐based observations
Author(s) -
Landi E.,
Habbal S. R.,
Tomczyk S.
Publication year - 2016
Publication title -
journal of geophysical research: space physics
Language(s) - English
Resource type - Journals
eISSN - 2169-9402
pISSN - 2169-9380
DOI - 10.1002/2016ja022598
Subject(s) - solar atmosphere , extreme ultraviolet lithography , corona (planetary geology) , instrumentation (computer programming) , coronal hole , spectrometer , physics , atmosphere (unit) , solar physics , remote sensing , narrowband , astronomy , coronal mass ejection , plasma , solar wind , optics , computer science , astrobiology , meteorology , geology , quantum mechanics , magnetic field , venus , operating system
In this paper we discuss the potential of ground‐based visible observations of the solar corona to address the key open problems in the physics of the solar atmosphere and of solar activity. We first compare the diagnostic potential of visible observations with those of high‐resolution spectrometers and narrowband imagers working in the EUV and X‐ray wavelength ranges. We then review the main diagnostic techniques (and introduce a few new ones) that can be applied to line and continuum emission in the solar atmosphere, and the physical problems that they enable us to address. Finally, we briefly review the main features of ground‐based coronographic instrumentation currently being developed and planned.