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Similarities and Differences of SARs in Solar Cycle 24
Li, Ting; Wang, Jingxiu; Chen, Anqin
Solar Cycle 24 is a particularly weak cycle and there are only six super active regions (SARs). Except for NOAA active region (AR) 12192, all other SARs are coronal mass ejection rich (CME-rich) and produced CMEs faster than 1000 kms−1. By studying the similarities and differences between CME-poor SARs and CME-rich SARs in Solar Cycle 2…
Coronal Density Measurements Using Giant Radio Pulses of the Crab Pulsar at the Cycle 24/25 Minimum
Tokumaru, Munetoshi; Terasawa, Toshio; Takefuji, Kazuhiro +2 more
Accurate measurements of the coronal plasma density profile, which varies with the solar cycle (SC), are necessary to elucidate the solar wind acceleration. In this study, the Crab pulsar is observed using the 327 MHz radio telescope at the Toyokawa Observatory of the Institute for Space-Earth Environmental Research of Nagoya University to investi…
Formation and Immediate Deformation of a Small Filament Through Intermittent Magnetic Interactions
Zhang, Liang; Chen, Yao; Zheng, Ruisheng +4 more
It is generally believed that filament formation involves a process of the accumulation of magnetic energy. However, in this article, we discuss the idea that filaments will not erupt and will only deform when the stored magnetic energy is released gradually. Combining high-quality observations from SolarDynamicsObservatory and other instruments, …
Correction to: Observation of a Flare and Filament Eruption in Lyman-α on 8 September 2011 by the PRoject for OnBoard Autonomy/Large Yield Radiometer (PROBA2/LYRA)
Kretzschmar, M.; Dammasch, I. E.; Dominique, M. +3 more