Cyclical Variation of the Quiet Corona and Coronal Holes

Journal of astrophysics and astronomy

Takashi Sakurai1¹ 

[1] National Astronomical Observatory, Japan$$

关键词: Coronagraphs;    solar activity cycle;    solar corona;    total eclipses;    X-ray observations.;   

DOI  :  

学科分类：天文学(综合)

来源: Indian Academy of Sciences

【 摘 要 】

Recent advances in the understanding of the quiet corona and coronal holes are reviewed. The review is based on long-term accumulation of data from eclipse observations, coronagraph observations, helium 10830 Ã… spectroheliograms, and X-ray observations.

【 授权许可】

Unknown