Understanding the Physical Nature of Coronal “EIT Waves”

• DOI: 10.1007/s11207-016-1030-y
• Publication Date: 2016-12-12T09:23:50Z
• Authors: D. M. Long; D. S. Bloomfield; P. F. Chen; C. Downs; P. T. Gallagher; R.-Y. Kwon; K. Vanninathan; A. M. Veronig; A. Vourlidas; B. Vršnak; A. Warmuth; T. Žic
• Keywords: Helioseismology; Corona (planetary geology); Coronal hole

For almost 20 years the physical nature of globally propagating waves in solar corona (commonly called "EIT waves") has been controversial and subject to debate. Additional theories have proposed over explain observations that did not agree with originally fast-mode wave interpretation. However, incompatibility made using Extreme-ultraviolet Imaging Telescope (EIT) onboard Solar Heliospheric Observatory interpretation was challenged by differing viewpoints from twin Terrestrial Relations spacecraft data higher spatial temporal resolution Dynamics Observatory. In this article, we reexamine EIT identify measurable properties behaviours can be compared current future observations. Most us conclude so-called are best described as large-amplitude or shocks initially driven impulsive expansion an erupting coronal mass ejection low corona.