Radio-rich solar eruptive events

Solar eruptive events

X-ray and radio manifestations of a solar eruptive event

We report on a study of the changes in the vicinity of a disappearing solar filament (DSF) that occurred on 1993 April 30. The DSF was associated with a long duration X-ray event (LDE) observed by the GOES and Yohkoh spacecraft. A detailed analysis of the X-ray images obtained by the Yohkoh Soft Xray Telescope revealed that X-ray manifestations of the eruption were wide-spread: (i) X-ray enhanc...

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...

Magnetic reconnection in solar eruptive events of varying magnetic configurations

We study the relationship between magnetic reconnection and acceleration of filaments and coronal mass ejections (CMEs) in different magnetic configurations. They occur in either quiet-Sun or active regions of either bipolar or multipolar magnetic fields, and are either or not accompanied by filament eruptions. The preliminary results of the case studies confirm the temporal correlation and mag...

Exploring the Role of Magnetic Reconnection in Solar Eruptive Events

We summarize our recent progress in investigating the role of magnetic reconnection in solar eruptive events consisting of flares, Coronal Mass Ejections (CMEs), and/or Magnetic Clouds (MCs). The rate and total flux of magnetic reconnection in low-corona are inferred from flare observations and compared with kinematic properties and magnetic flux budget of erupting flux ropes. The results and t...