E-Print Archive

There are 4354 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
Signature of Energy Release and Particle Acceleration Observed by the Nobeyama Radioheliograph View all abstracts by submitter

Kiyoto Shibasaki   Submitted: 2003-01-14 22:58

Microwave imaging observations of solar flares are presented and a new scenario for solar flares is proposed. Microwaves are effectively emitted by high-energy electrons gyrating in active region magnetic fields. Higher harmonics (10 - 100) of the gyro-frequency in active regions, excited by mildly relativistic electrons, correspond to microwaves. Imaging observations of strong microwave emission associated with solar flares make it possible to study where and how the high-energy electrons are created in solar flares, which is one of the long-standing questions of solar flares. Hot and dense plasma created by solar flares also emits microwaves by the free-free mechanism although usually weak compared to the non-thermal emission. It is shown that flares start in a small loop and also shown that hot plasmas and high-energy electrons are fed into a nearby larger loop from the small one. Based on these observations and other observations, it is proposed that ``high-beta disruption' is the cause of solar flare phenomena.

Authors: Kiyoto Shibasaki
Projects:

Publication Status: Lecture Note in Physics, 612, 94 (2003)
Last Modified: 2003-02-21 11:08
Go to main E-Print page  A New Solar Flare Scenario: High-beta Plasma Disruption  Spectral variations of flare hard X-ray footpoint sources  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 budget of plasma motions, heating, and electron acceleration in a three-loop solar flare
Space weather: the solar perspective - an update to Schwenn (2006)
Mixed properties of slow magnetoacoustic and entropy waves in a plasma with heating/cooling misbalance
The morphology of average solar flare time profiles from observations of the Sun's lower atmosphere
Indications of stellar coronal mass ejections through coronal dimmings
Could switchbacks originate in the lower solar atmosphere? II. Propagation of switchbacks in the solar corona
Solar large-scale magnetic field and cycle patterns in solar dynamo
Three-dimensional magnetic reconnection in astrophysical plasmas
Energy partition in a confined flare with an extreme-ultraviolet late phase
Alfvén wave heating in partially ionized thin threads of solar prominences
He I 10830 Dimming During Solar Flares, I: The Crucial Role of Non-Thermal Collisional Ionisations
Separating aa-index into Solar and Hale Cycle Related Components Using Principal Component Analysis
Inward Propagating Plasma Parcels in the Solar Corona: Models with Aerodynamic Drag, Ablation, and Snowplow Accretion
Energetics and 3-D Structure of Elementary Events in Solar Coronal Heating
Stellar Superflares Observed Simultaneously with Kepler and XMM-Newton
Medium-term predictions of F10.7 and F30 cm solar radio flux with the adaptive Kalman filter
Resonances in a Coronal Loop Driven by Torsional Alfvén Waves Propagating from the Photosphere
Effects of external flow on resonant absorption of coronal loop kink oscillations driven by an external fast wave: Selective excitation problem
Emerging Dimming as Coronal Heating Episodes
Proxy-Based Prediction of Solar Extreme Ultraviolet Emission using Deep Learning

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



© 2000-2020 Solar Physics Group - Montana State University