E-Print Archive

There are 3775 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
Solar Open Flux Migration from Pole to Pole: Magnetic Field Reversal View all abstracts by submitter

Chia-Hsien Lin   Submitted: 2017-08-27 01:58

Coronal holes are solar regions with low soft X-ray or low extreme ultraviolet intensities. The magnetic fields from coronal holes extend far away from the Sun, and thus they are identified as regions with open magnetic field lines. Coronal holes are concentrated in the polar regions during the sunspot minimum phase, and spread to lower latitude during the rising phase of solar activity. In this work, we identify coronal holes with outward and inward open magnetic fluxes being in the opposite poles during solar quiet period. We find that during the sunspot rising phase, the outward and inward open fluxes perform pole-to-pole trans-equatorial migrations in opposite directions. The migration of the open fluxes consists of three parts: open flux areas migrating across the equator, new open flux areas generated in the low latitude and migrating poleward, and new open flux areas locally generated in the polar region. All three components contribute to the reversal of magnetic polarity. The percentage of contribution from each component is different for different solar cycle. Our results also show that the sunspot number is positively correlated with the lower-latitude open magnetic flux area, but negatively correlated with the total open flux area.

Authors: Huang, G.-H., Lin, C.-H., and Lee, L.C.
Projects: SDO-AIA,SDO-HMI

Publication Status: Scientific Report (published)
Last Modified: 2017-08-28 12:24
Go to main E-Print page  Earth-Affecting Coronal Mass Ejections Without Obvious Low Coronal Signatures  A statistical study of the inferred transverse density profile of coronal loop threads observed with SDO/AIA  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
A Statistical Analysis of the Solar Phenomena Associated with Global EUV Waves
Imaging Spectroscopy of Solar Radio Burst Fine Structures
On a small-scale EUV wave: the driving mechanism and the associated oscillating filament
Type III Solar Radio Burst Source Region Splitting Due to a Quasi-Separatrix Layer
On a solar blowout jet: driven mechanism and the formation of cool and hot components
Understanding the Role of Mass-Unloading in Filament Eruptions
Surges and Si IV bursts in the solar atmosphere. Understanding IRIS and SST observations through RMHD experiments
The direct relation between the duration of magnetic reconnection and the evolution of GOES light curves in solar flares
Large-Amplitude Longitudinal Oscillations Triggered by the Merging of Two Solar Filaments: Observations and Magnetic Field Analysis
Statistical Study of Solar White-light Flares and Comparisons with Superflares on Solar-type Stars
Effect of local thermal equilibrium misbalance on long-wavelength slow magnetoacoustic waves
Characteristics of Sustained >100 γ-ray Emission Associated with Solar Flares
Characteristics that Produce White-Light Enhancements in Solar Flares Observed by Hinode/SOT
Solar Energetic Particle Forecasting Algorithms and Associated False Alarms
Magnetic swirls and associated fast magnetoacoustic kink waves in a solar chromospheric flux tube
High-wavenumber solar f-mode strengthening prior to active region formation
Block-induced complex structures building the flare-productive solar active region 12673
Reconstruction of a Large-scale Pre-flare Coronal Current Sheet Associated with an Homologous X-shaped Flare
Comparison of Two Coronal Magnetic Field Models for Reconstructing a Sigmoidal Solar Active Region With Coronal Loops
A Magnetic Bald-Patch Flare in Solar Active Region 11117

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