The dependence of flare energetics on the localization and evolution of flare knots

Title:

The dependence of flare energetics on the localization and evolution of flare knots

Creator:

Ishkov, V. N.

Identifier:

https://cdk.lib.cas.cz/client/handle/uuid:275f4ca5-2b55-4c32-a6ba-7ee6de6158ab
uuid:275f4ca5-2b55-4c32-a6ba-7ee6de6158ab

Subject:

solar observations and flare knots

Type:

model:article and TEXT

Format:

bez média and svazek

Description:

Using the results of solar flare observations during the SMY period (1979-1982), as well as X-ray and radio data, it was established that; 1) the flare can be considered as a complex of flare knots or brightenings, spatially and temporally distributed within the flare phenomenon. The comparison of flare knots with the flare radio source (Westerborge) and X-ray data (SMM, Hinotori) shovvs that the former provide a complete informiation about the place of the flare energy release; 2) the localization of the flare knots gives information about the flare hard X-ray and rnicrowave radiation with a flux of 300 s.f.u.; 3) by spatial order of arising flare knots the flares can be divided into three groups: (a) the flares with a precipitant start over all ranges of electromagnetic emission are observed when the flare knots lie within sunspot groups; (b) the flares with a gradual start are observed when the flare knots arising in the spotless area usually near a filament) penetrate into the sunspot group in the process of flare evolution; (e) "spotless" flares are characterized by a slow rise to the maximum, a large area in Hα and very poor hard X-ray and microwave radiation; 4) the appeared flare knots are divided into two rnodules: an internal and an external one with respect to zero line of the longitudinal magnetic field. The external flare knot begins a discrete displacement, determining the appearance of new AFS. The probability of the second brightening of the same flare knot is much smaller than of appearance of a new one.

Language:

Czech

Rights:

http://creativecommons.org/publicdomain/mark/1.0/
policy:public

Coverage:

92-92

Source:

Publications of the Astronomical Institute of the Academy of Sciences of the Czech Republic | 1998 Volume:87-88 | Number:88

Harvested from:

CDK

Metadata only:

false