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The statistical relationship between global EUV waves and other solar phenomena by D. Long et al.*

23 Jan 2018, 10:01 UTC
The statistical relationship between global EUV waves and other solar phenomena  by D. Long et al.*
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Solar eruptions are associated with a variety of different phenomena, including solar flares, coronal mass ejections, Type II radio bursts, solar energetic particles and global coronal EUV waves (commonly known as “EIT waves”, e.g., Warmuth, 2015). However, the relationship between global waves and these other phenomena is not well defined. Although global waves have traditionally been studied using single event case studies, several statistical studies have been performed, with Thompson & Myers (2009), Muhr et al. (2014) and Nitta et al. (2013) collating observations from SOHO, STEREO and SDO respectively.
We used the automated Coronal Pulse Identification and Tracking Algorithm (CorPITA; Long et al., 2014) in this work. This code identifies the global wave in a series of 360 arc sectors, using a quality rating system to quantify the detection and allowing its temporal evolution to be studied; this is shown in panels a and b of Figure 1. CorPITA was applied to a list of 410 global waves previously identified by Nitta et al. (2013) to investigate their statistical relationship with other solar phenomena. We found that of the 362 wave events that could be processed by CorPITA (due to the requirements of the algorithm), 164 were classed as ...

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