E-Print Archive

There are 4488 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
Homologous Coronal Mass Ejections Caused by Recurring Formation and Disruption of Current Sheet within a Sheared Magnetic Arcade View all abstracts by submitter

Chaowei Jiang   Submitted: 2022-01-12 01:14

The Sun often produces coronal mass ejections with similar structure repeatedly from the same source region, and how these homologous eruptions are initiated remains an open question. Here, by using a new magnetohydrodynamic simulation, we show that homologous solar eruptions can be efficiently produced by recurring formation and disruption of coronal current sheet as driven by continuously shearing of the same polarity inversion line within a single bipolar configuration. These eruptions are initiated by the same mechanism, in which an internal current sheet forms slowly in a gradually sheared bipolar field and reconnection of the current sheet triggers and drives the eruption. Each of the eruptions does not release all the free energy but with a large amount left in the post-flare arcade below the erupting flux rope. Thus, a new current sheet can be more easily formed by further shearing of the post-flare arcade than by shearing a potential field arcade, and this is favorable for producing the next eruption. Furthermore, it is found that the new eruption is stronger since the newly formed current sheet has a larger current density and a lower height. In addition, our results also indicate the existence of a magnetic energy threshold for a given flux distribution, and eruption occurs once this threshold is approached.

Authors: Xinkai Bian, Chaowei Jiang, Xueshang Feng, Pingbing Zuo, and Yi Wang
Projects: None

Publication Status: Accepted by ApJL
Last Modified: 2022-01-12 13:27
Go to main E-Print page  Structural evolution of a magnetic flux rope associated with a major flare in the solar active region 12205  Propagating Oscillations in the Lower Atmosphere Under Coronal Holes  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
The relativistic solar particle event on 28 October 2021: Evidence of particle acceleration within and escape from the solar corona
Statistical Analysis of Stellar Flares from the First Three Years of TESS Observations
Interface Region Imaging Spectrograph (IRIS) Observations of the Fractal Dimension in the Solar Atmosphere
Clusters of Solar Radio Spikes Modulated by Quasi-Periodic Pulsations in a Confined Flare
Dynamic Property and Magnetic Nonpotentiality of Two Types of Confined Solar Flares
Terrestrial volcanic eruptions and their possible links with solar activity
Transition to turbulence in nonuniform coronal loops driven by torsional Alfvén waves. II. Extended analysis and effect of magnetic twist
Bayesian approach for modeling solar active region global magnetic parameters
Where is the base of the Transition Region? Evidence from TRACE, SDO, IRIS and ALMA observations
The Spectrometer Telescope for Imaging X-rays (STIX) on Solar Orbiter
Detection of spicules termed Rapid Blue-shifted Excursions as seen in the chromosphere via Hα and the transition region via Si iv 1394 line emission
Grid-based imaging in X-rays and gamma-rays with high spatial resolution
It Takes a Village (Invited memoir)
Maximal growth rate of the ascending phase of a sunspot cycle for predicting its amplitude
Starspots Modelling and Flare Analysis on Selected MV Stars
Doubling of minute-long Quasi-Periodic Pulsations from super-flares on a low mass star
Geometric Assumptions in Hydrodynamic Modeling of Coronal and Flaring Loops
Sun-as-a-star Analysis of Hα Spectra of a Solar Flare Observed by SMART/SDDI: Time Evolution of Red Asymmetry and Line Broadening
Searching for quasi-periodic oscillations in astrophysical transients using Gaussian processes
Analysis of the Evolution of a Multi-Ribbon Flare and Failed Filament Eruption

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