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
Observationally quantified reconnection providing a viable mechanism for active region coronal heating View all abstracts by submitter

Kai Yang   Submitted: 2018-02-17 01:24

The heating of the Sun's corona has been explained by several different mechanisms including wave dissipation and magnetic reconnection. While both have been shown capable of supplying the requisite power, neither has been used in a quantitative model of observations fed by measured inputs. Here we show that impulsive reconnection is capable of producing an active region corona agreeing both qualitatively and quantitatively with extreme-ultraviolet observations. We calculate the heating power proportional to the velocity difference between magnetic footpoints and the photospheric plasma, called the non-ideal velocity. The length scale of flux elements reconnected in the corona is found to be around 160 km. The differential emission measure of the model corona agrees with that derived using multi-wavelength images. Synthesized extreme-ultraviolet images resemble observations both in their loop-dominated appearance and their intensity histograms. This work provides compelling evidence that impulsive reconnection events are a viable mechanism for heating the corona.

Authors: Kai E. Yang, Dana W. Longcope, M.D. Ding, and Yang Guo
Projects: None

Publication Status: Published, Nature Communications volume 9, Article number: 692
Last Modified: 2018-02-21 12:17
Go to main E-Print page  Multi-fluid approach to high-frequency waves in plasmas. III. Nonlinear regime and plasma heating  Statistical Properties of Ribbon Evolution and Reconnection Electric Fields in Eruptive and Confined Flares  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