The quiet chromosphere. Old wisdom, new insights, future needs
Robert J. Rutten

TL;DR
This review discusses the historical development, recent breakthroughs, and future directions in chromosphere observation and modeling, emphasizing the shift from eclipse-based studies to advanced NLTE line formation theories.
Contribution
It provides a comprehensive overview of the evolution of chromosphere research, highlighting recent advances and proposing future research directions.
Findings
Critique of 1D modeling approaches.
Recent breakthroughs in chromosphere observation.
Discussion of future research needs.
Abstract
The introduction to this review summarizes chromosphere observation in two figures. The first part showcases the historical emphasis on the eclipse chromosphere in the development of NLTE line formation theory and criticizes 1D modeling. The second part advertises recent breakthroughs after many decades of standstill. The third part discusses what may or should come next.
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Taxonomy
TopicsScientific Research and Discoveries · Geomagnetism and Paleomagnetism Studies · Geophysics and Gravity Measurements
