Observations on a series of merging magnetic flux ropes within an interplanetary coronal mass ejection
arXiv:1812.03495 · doi:10.1029/2018GL080063
Abstract
Coronal mass ejections (CMEs) are intense solar explosive eruptions. CMEs are highly important players in solar-terrestrial relationships, and they have important consequences for major geomagnetic storms and energetic particle events. It has been unclear how CMEs evolve when they propagate in the heliosphere. Here we report an interplanetary coronal mass ejection (ICME) consisting of multiple magnetic flux ropes measured by WIND on March 25-26, 1998. These magnetic flux ropes were merging with each other. The observations indicate that internal interactions (reconnections) within multi-flux-rope CME can coalesce into large-scale ropes, which may improve our understanding of the interplanetary evolution of CMEs. In addition, we speculated that the reported rope-rope interactions may also exist between successive rope-like CMEs and are important for the space weather forecasting.
arXiv comment10 pages, 5 figures, accepted fot publication in Geophysical Research Letters
References in corpus (10)
- Observation of An Evolving Magnetic Flux Rope Prior To and During A Solar Eruption
- Observations of an extreme storm in interplanetary space caused by successive coronal mass ejections
- The Deflection of the Two Interacting Coronal Mass Ejections of 2010 May 23-24 as Revealed by Combined In situ Measurements and Heliospheric Imaging
- History and Development of Coronal Mass Ejections as a Key Player in Solar Terrestrial Relationship
- Progressive transformation of a flux rope to an ICME
- Sigmoid-to-Flux-Rope Transition Leading to A Loop-Like Coronal Mass Ejection
- Characteristics of kinematics of a coronal mass ejection during the 2010 August 1 CME-CME interaction event
- Interactions between Coronal Mass Ejections Viewed in Coordinated Imaging and In Situ Observations
- Sun-to-Earth Characteristics of Two Coronal Mass Ejections Interacting near 1 AU: Formation of a Complex Ejecta and Generation of a Two-Step Geomagnetic Storm
- Pre-Eruptive Magnetic Reconnection within a Multi-Flux-Rope System in the Solar Corona