E-Print Archive

There are 4451 abstracts currently viewable.


Search:

Advanced Search
Options
Main Page Add New E-Print Submitter
Information
Feedback
News Help/FAQ About Preferences
Manage Key Phrase
Notification
Asymmetry in the CME-CME interaction process for the events from 2011 February 14-15 View all abstracts by submitter

Manuela Temmer   Submitted: 2014-02-28 01:23

We present a detailed study of the interaction process of two coronalmass ejections (CMEs) successively launched on 2011 February 14 (CME1)and 2011 February 15 (CME2). Reconstructing the 3D shape and evolutionof the flux ropes we verify that the two CMEs interact. The frontalstructure of both CMEs measured along different position angles (PA)over the entire latitudinal extent, reveals differences in thekinematics for the interacting flanks and the apexes. The interactionprocess is strongly PA-dependent in terms of timing as well askinematical evolution. The central interaction occurs along PA-100°,which shows the strongest changes in kinematics. During interaction,CME1 accelerates from ~400 km s-1 to ~700 km s-1 and CME2 decelerates from~1300 km s-1 to ~600 km s-1. Our results indicate that a simplifiedscenario like inelastic collision may not be sufficient to describethe CME-CME interaction. Magnetic field structures of the intertwiningflux ropes as well as momentum transfer due to shocks play animportant role in the interaction process.

Authors: M. Temmer, A. M. Veronig, V. Peinhart, B. Vrsnak
Projects: PROBA2/SWAP,SoHO-LASCO,STEREO

Publication Status: ApJ (accepted)
Last Modified: 2014-03-04 16:08
Go to main E-Print page  New Vacuum Solar Telescope observations of a flux rope tracked by a filament activation  Rayleigh-Taylor instabilities with sheared magnetic fields  Edit Entry  Download Preprint  Submitter's Homepage Delete Entry 

Key
Go to main E-Print pageGo to main E-Print page.
Previous AbstractPrevious Abstract.
Next AbstractNext Abstract.
Download PreprintDownload Preprint.
Submitter's HomepageSubmitters Homepage.
Edit EntryEdit Entry.
View All Abstracts By SubmitterView all abstracts by submitter.
Delete AbstractDelete abstract.

Latest Entries
Structural evolution of a magnetic flux rope associated with a major flare in the solar active region 12205
Homologous Coronal Mass Ejections Caused by Recurring Formation and Disruption of Current Sheet within a Sheared Magnetic Arcade
Propagating Oscillations in the Lower Atmosphere Under Coronal Holes
Using Flare-Induced Modulation of Three- and Five-Minute Oscillations for Studying Wave Propagation in the Solar Atmosphere
Plasma dynamics in the flaring loop observed by RHESSI
Multi-instrument STIX microflare study
Disambiguation of Vector Magnetograms by Stereoscopic Observations from the Solar Orbiter/Polarimetric and Helioseismic Imager (PHI) and the Solar Dynamic Observatory (SDO)/Helioseismic and Magnetic Imager (HMI)
Enhanced Phase Mixing of Torsional Alfvén Waves in Stratified and Divergent Solar Coronal Structures, Paper II: Nonlinear Simulations
Multi-Passband Observations of A Solar Flare over the He I 10830 line
Multi-wavelength quasi-periodic pulsations in a stellar superflare
Probable detection of an eruptive filament from a superflare on a solar-type star
Global Energetics in Solar Flares. XIII. The Neupert Effect and Acceleration of Coronal Mass Ejections
Enhanced Phase Mixing of Torsional Alfvén Waves in Stratified and Divergent Solar Coronal Structures, Paper I: Linear Solutions
Variations of the Internal Asymmetries of Sunspot Groups During their Decay
Partial Eruption, Confinement, and Twist Buildup and Release of a Double-decker Filament
Overdense Threads in the Solar Corona Induced by Torsional Alfvén Waves
Implications of spicule activity on coronal loop heating and catastrophic cooling
The Magnetic Origin of Solar Campfires
On the evolution of a sub-C class flare: a showcase for the capabilities of the revamped Catania Solar Telescope
Direct evidence that twisted flux tube emergence creates solar active regions

Related Pages
MSU Solar Physics.
Max Millennium Science Mail Archive.
Max Millennium Message of the Day Mail Archive.
Max Millennium Flare Catalog

Archive Maintainer
Alisdair Davey



© 2000-2020 Solar Physics Group - Montana State University