19 research outputs found
Kinematic Properties of Slow ICMEs and an Interpretation of a Modified Drag Equation for Fast and Moderate ICMEs
No full textWe report kinematic properties of slow interplanetary coronal mass ejections (ICMEs) identified by SOHO/LASCO, interplanetary scintillation, and in situ observations and propose a modified equation for the ICME motion. We identified seven ICMEs between 2010 and 2011 and compared them with 39 events reported in our previous work. We examined 15 fast (V SOHO−V bg>500 km s−1), 25 moderate (0 km s−1≤V SOHO−V bg≤500 km s−1), and 6 slow (V SOHO−V bg2300 km s−1.Epub 2014 Jan 23
Daniel Mogling's Sunspot Observations in 1626-1629: A Manuscript Reference for the Solar Activity before the Maunder Minimum
No full textKarl von Lindener’s sunspot observations during 1800–1827: Another long-term dataset for the Dalton Minimum
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Reanalyses of the sunspot observations of Fogelius and Siverus: two ‘long-term’ observers during the Maunder minimum
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Johann Christoph Müller’s Sunspot Observations in 1719 – 1720: Snapshots of the Immediate Aftermath of the Maunder Minimum
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