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Statistical Characteristics on SEPs, Radio-Loud CMEs, Low Frequency Type II and Type III Radio Bursts Associated with Impulsive and Gradual Flares
Prakash, O.; Shanmugaraju, A.; Kim, R. -S. +1 more
We have statistically analyzed a set of 115 low frequency (Deca-Hectometer wavelengths range) type II and type III bursts associated with major Solar Energetic Particle (SEP: Ep > 10 MeV) events and their solar causes such as solar flares and coronal mass ejections (CMEs) observed from 1997 to 2014. We classified them into two sets o…
Study of Coronal Mass Ejections Succeeding the Associated X-Ray and γ-Ray Burst Solar Flares
Abdel-Sattar, Walid; Mawad, Ramy
This study is dedicated to the investigation of the characteristics of CMEs following the associated X-ray and γ-ray burst solar flares. Investigated 14786 CME events and 5092 Gamma Burst Monitor (GBM) solar flare events recorded during the solar period 2008–2017, found 503 (about 10%) CME events associated with GBM post-flare events (hereafter, G…
Influence of coronal mass ejection on geomagnetic activity during 1988–1993
Shrivastava, Pankaj Kumar; Singh, G. N.
The most rapid and dramatic evolution in the solar corona occurs in events now known as Coronal Mass Ejections (CMEs). There have considerable importance for our understanding of the evolution of the mass and energy injected into the interplanetary medium. In this work, we have studied the relation of CMEs with geomagnetic activity for the period …
The Shadow of Comet Hale-Bopp in Lyman-Alpha
Bertaux, Jean-Loup; Lallement, Rosine; Szegö, Karöly +1 more
For a few months around perihelion, the central part of the Hale-Bopp hydrogen cloud has been optically thick to the solar Lyα radiation, and has significantly reduced the solar flux available for the resonance glow of interstellar hydrogen beyond the comet. This shadowing effect on the interstellar gas is the first ever observed comet shadow. It …