E-Print Archive

There are 3746 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
Observations of Reconnection Flows in a Flare on the Solar Disk View all abstracts by submitter

Juntao Wang   Submitted: 2017-08-30 04:26

Magnetic reconnection is a well-accepted part of the theory of solar eruptive events, though the evidence is still circumstantial. Intrinsic to the reconnection picture of a solar eruptive event, particularly in the standard model for two-ribbon flares ("CSHKP" model), are an advective flow of magnetized plasma into the reconnection region, expansion of field above the reconnection region as a flux rope erupts, retraction of heated post-reconnection loops, and downflows of cooling plasma along those loops. We report on a unique set of SDO/AIA imaging and Hinode/EIS spectroscopic observations of the disk flare SOL2016-03-23T03:54 in which all four flows are present simultaneously. This includes spectroscopic evidence for a plasma upflow in association with large-scale expanding closed inflow field. The reconnection inflows are symmetric, and consistent with fast reconnection, and the post-reconnection loops show a clear cooling and deceleration as they retract. Observations of coronal reconnection flows are still rare, and most events are observed at the solar limb, obscured by complex foregrounds, making their relationship to the flare ribbons, cusp field and arcades formed in the lower atmosphere difficult to interpret. The disk location and favorable perspective of this event have removed these ambiguities giving a clear picture of the reconnection dynamics.

Authors: Juntao Wang, P. J. A. Simões, N. L. S. Jeffrey, L. Fletcher, P. J. Wright, and I. G. Hannah
Projects: None

Publication Status: Accepted for publication in ApJL
Last Modified: 2017-08-30 12:29
Go to main E-Print page   A Database of Flare Ribbon Properties from the Solar Dynamics Observatory. I. Reconnection Flux  Spectroscopic Observations of Magnetic Reconnection and Chromospheric Evaporation in an X-shaped Solar Flare  Edit Entry  Download Preprint  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
Energy release in the solar atmosphere from a stream of infalling prominence debris
Estimation of a Coronal Mass Ejection Magnetic Field Strength using Radio Observations of Gyrosynchrotron Radiation
QUASI-PERIODIC OSCILLATIONS IN FLARES AND CORONAL MASS EJECTIONS ASSOCIATED WITH MAGNETIC RECONNECTION
The 17 February 2013 sunquake in the context of the active region's magnetic field configuration
Optimal Energy Growth in Current Sheets
Long- and Mid-Term Variations of the Soft X-ray Flare Type in Solar Cycles
The Abundance of Helium in the Source Plasma of Solar Energetic Particles
Flare Ribbons Approach Observed by the IRIS and the SDO
Slippage of Jets Explained by the Magnetic Topology of NOAA Active Region 12035
Development and Parameters of a Non-Self-Similar CME Caused by Eruption of a Quiescent Prominence
Spectroscopy of Very Hot Plasma in Non-flaring Parts of a Solar Limb Active Region: Spatial and Temporal Properties
Time variations of observed Hα line profiles and precipitation depths of non-thermal electrons in a solar flare
A Solar cycle correlation of coronal element abundances in Sun-as-a-star observations
A Database of Flare Ribbon Properties from the Solar Dynamics Observatory. I. Reconnection Flux
Observations of Reconnection Flows in a Flare on the Solar Disk
Spectroscopic Observations of Magnetic Reconnection and Chromospheric Evaporation in an X-shaped Solar Flare
Earth-Affecting Coronal Mass Ejections Without Obvious Low Coronal Signatures
Solar Open Flux Migration from Pole to Pole: Magnetic Field Reversal
A statistical study of the inferred transverse density profile of coronal loop threads observed with SDO/AIA
Seismology of contracting and expanding coronal loops using damping of kink oscillations by mode coupling

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