E-Print Archive

There are 3855 abstracts currently viewable.


Advanced Search
Main Page Add New E-Print Submitter
News Help/FAQ About Preferences
Manage Key Phrase
Statistical Properties of Ribbon Evolution and Reconnection Electric Fields in Eruptive and Confined Flares View all abstracts by submitter

Juergen Hinterreiter   Submitted: 2018-02-16 03:38

A statistical study of the chromospheric ribbon evolution in Hα two-ribbon flares was performed. The data set consists of 50 confined (62%) and eruptive (38%) flares that occurred from June 2000 to June 2015. The flares were selected homogeneously over the Hα and Geostationary Operational Environmental Satellite (GOES) classes, with an emphasis on including powerful confined flares and weak eruptive flares. Hα filtergrams from the Kanzelhöhe Observatory in combination with Michelson Doppler Imager (MDI) and Helioseismic and Magnetic Imager (HMI) magnetograms were used to derive the ribbon separation, the ribbon-separation velocity, the magnetic-field strength, and the reconnection electric field. We find that eruptive flares reveal statistically larger ribbon separation and higher ribbon-separation velocities than confined flares. In addition, the ribbon separation of eruptive flares correlates with the GOES SXR flux, whereas no clear dependence was found for confined flares. The maximum ribbon-separation velocity is not correlated with the GOES flux, but eruptive flares reveal on average a higher ribbon-separation velocity (by ≈10 km s-1). The local reconnection electric field of confined (cc = 0.50 ± 0.02) and eruptive (cc = 0.77 ± 0.03) flares correlates with the GOES flux, indicating that more powerful flares involve stronger reconnection electric fields. In addition, eruptive flares with higher electric-field strengths tend to be accompanied by faster coronal mass ejections.

Authors: J. Hinterreiter, A.M. Veronig, J.K. Thalmann, J. Tschernitz, W. Pötzi
Projects: None

Publication Status: Accepted for publication in Solar Physics
Last Modified: 2018-02-16 10:28
Go to main E-Print page  Observationally quantified reconnection providing a viable mechanism for active region coronal heating  Unambiguous Evidence of Filament Splitting-Induced Partial Eruptions  Edit Entry  Download Preprint  Delete Entry 

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
Propagation of a global coronal wave and its interaction with large-scale coronal magnetic structures
A New Tool for CME Arrival Time Prediction Using Machine Learning Algorithms: CAT-PUMA
Solar Magnetoseismology with Magnetoacoustic Surface Waves in Asymmetric Magnetic Slab Waveguides
Blue wing enhancement of the chromospheric Mg II h and k lines in a solar flare
Finite amplitude transverse oscillations of a magnetic rope
Bridging the Gap: Capturing the Lyα Counterpart of a Type-II Spicule and its Heating Evolution with VAULT2.0 and IRIS Observations
Turbulent transport coefficients in spherical wedge dynamo simulations of solar-like stars
Implosive collapse about magnetic null points: A quantitative comparison between 2D and 3D nulls
Forward Modeling of Coronal Mass Ejection Flux Ropes in the Inner Heliosphere with 3DCORE
Strong non-radial propagation of energetic electrons in solar corona
Developments of Multi-wavelength Spectro-Polarimeter on the Domeless Solar Telescope at Hida Observatory
LOFAR observations of the quiet solar corona
Statistics of "Cold" Early Impulsive Solar Flares in X-ray and Microwave domains
Successive X-class flares and coronal mass ejections driven by shearing motion and sunspot rotation in active region NOAA 12673
An Observationally-Constrained Model of a Flux Rope that Formed in the Solar Corona
The Duration of Energy Deposition on Unresolved Flaring Loops in the Solar Corona
On the detection of coronal dimmings and the extraction of their characteristic properties
Plasma diagnostics of coronal dimming events
Multi-fluid approach to high-frequency waves in plasmas. III. Nonlinear regime and plasma heating
Observationally quantified reconnection providing a viable mechanism for active region coronal heating

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

© 2003 Solar Physics Group - Montana State University