Relations among eruptive prominence properties, flare evolution and CME kinematics in large solar energetic particle events

Analysis and interpretation of a fast limb CME with eruptive prominence, C-flare and EUV dimming

Aims. Coronal mass ejections or CMEs are large dynamical solar-corona events. The mass balance and kinematics of a fast limb CME, including its prominence progenitor and the associated flare, will be compared with computed magnetic structures to look for their origin and effect. Methods. Multi-wavelength ground-based and spaceborne observations are used to study a fast W-limb CME event of Decem...

Time Evolution of Elemental Ratios in Solar Energetic Particle Events

Heavy ion ratio abundances in Solar Energetic Particle (SEP) events, e.g. Fe/O, often exhibit decreases over time. Using particle instruments on the ACE, SOHO and STEREO spacecraft, we analysed heavy ion data from 4 SEP events taking place between December 2006 and December 2014. We constructed 36 different ionic pairs and studied their time evolution in each event. We quantified the temporal b...

Solar eruptive events

Evolution of Abundances and Spectra in the Large Solar Energetic Particle Events of 1998 Sep 30 and 2000 Apr 4

The 1998 Sep 30 and 2000 Apr 4 events are both large western solar energetic particle (SEP) events, in which 1 MeV proton intensities exceed 10 particles (cm s sr MeV) . Yet they exhibit quite different time variations of elemental abundance ratios and energy spectra. Using a model of SEP transport through self-amplified interplanetary Alfvén waves, we fit the simultaneous observations of proto...

Global Energetics of Thirty-eight Large Solar Eruptive Events

We have evaluated the energetics of 38 solar eruptive events observed by a variety of spacecraft instruments between 2002 February and 2006 December, as accurately as the observations allow. The measured energetic components include: (1) the radiated energy in the Geostationary Operational Environmental Satellite 1–8 Å band, (2) the total energy radiated from the soft X-ray (SXR) emitting plasm...