E-Print Archive

There are 3813 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
A Magnetic Bald-Patch Flare in Solar Active Region 11117 View all abstracts by submitter

Chaowei Jiang   Submitted: 2017-10-10 19:28

With SDO observations and a data-constrained MHD model, we identify a confined multi-ribbon flare occurred on 2010 October 25 in solar active region 11117 as a magnetic bald patch (BP) flare with strong evidences. From the photospheric magnetic field observed by SDO/HMI, we find there is indeed magnetic BPs on the PILs which match parts of the flare ribbons. From the 3D coronal magnetic field derived from a MHD relaxation model constrained by the vector magnetograms, we find strikingly good agreement of the BP separatrix surface (BPSS) footpoints with the flare ribbons, and the BPSS itself with the hot flaring loop system. Moreover, the triggering of the BP flare can be attributed to a small flux emergence under the lobe of the BPSS, and the relevant change of the coronal magnetic field through the flare is well reproduced by the pre-flare and post-flare MHD solutions, which match the corresponding pre and post-flare AIA observations, respectively. Our work contributes to the study of non-typical flares that constitute the majority of solar flares but cannot be explained by the standard flare model.

Authors: Chaowei Jiang, Xueshang Feng, S. T. Wu, Qiang Hu
Projects: SDO-AIA,SDO-HMI

Publication Status: published in RAA
Last Modified: 2017-10-11 06:20
Go to main E-Print page  Comparison of Two Coronal Magnetic Field Models for Reconstructing a Sigmoidal Solar Active Region With Coronal Loops  Reply to comment by Usoskin (2017) on the paper   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 density compression ratio of shock fronts associated with coronal mass ejections
Evolution of Photospheric Flow and Magnetic Fields Associated with The 2015 June 22 M6.5 Flare
Spatially inhomogeneous acceleration of electrons in solar flares
Probing Twisted Magnetic Field Using Microwave Observations in an M Class Solar Flare on 11 February, 2014
The origin, early evolution and predictability of solar eruptions
Polar Field Correction for HMI Line-of-Sight Synoptic Data
Relationship between Intensity of White-Light Flares and Proton Flux of Solar Energetic Particles
Spectroscopic Observations of a Current Sheet in a Solar Flare
IRIS Observations of Spicules and Structures Near the Solar Limb
Strong Transverse Photosphere Magnetic Fields and Twist in Light Bridge Dividing Delta Sunspot of Active Region 12673
Simultaneous observation of a flux rope eruption and magnetic reconnection during an X-class solar flare
Spectroscopic diagnostics of the non-Maxwellian κ-distributions using SDO/EVE observations of the 2012 March 7 X-class flare
Transient rotation of photospheric vector magnetic fields associated with a solar flare
Three-dimensional Forward-fit Modeling of the Hard X-Ray and Microwave Emissions of the 2015 June 22 M6.5 Flare
Center-to-Limb Variability of Hot Coronal EUV Emissions During Solar Flares
A time dependent relation between EUV solar flare light-curves from lines with differing formation temperatures
Understanding Breaks in Flare X-Ray Spectra: Evaluation of a Cospatial Collisional Return-current Model
Solar energetic particles and radio burst emission
A quasi-periodic fast-propagating magnetosonic wave associated with the eruption of a magnetic flux rope
Two-step solar filament eruptions

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