Matches in SemOpenAlex for { <https://semopenalex.org/work/W2963595556> ?p ?o ?g. }
Showing items 1 to 87 of
87
with 100 items per page.
- W2963595556 startingPage "715" @default.
- W2963595556 abstract "Although the analysis of observational data indicates that quasi-separatrix layers (QSLs) have to play an important role in magnetic configurations of solar flares, the corresponding theory is only at an initial stage so far. In particular, there is still a need in a proper definition of QSL. This problem is analyzed here on the basis of geometrical properties of the mapping produced by the field lines which connect photospheric areas of positive and negative magnetic polarities of active regions. In general, one can find on the photosphere a unique pair of locally perpendicular line elements at one footpoint of a given field line, so that this pair is mapped into a similar pair of elements at the other footpoint. Along the directions of these elements the field line mapping only stretches and compresses the corresponding displacements of the neighboring field-line footpoints. This fact enables us to get a remarkably clear and concise definition of QSL as a volume filled by coronal field lines for which the ratio of the corresponding stretching and compressing coefficients is anomalously large. The new definition is also compared with the ones previously introduced by other authors. The theory is applied to flare events of the so-called sigmoid-type, using an analytical model of a twisted force-free configuration. It is shown that such a configuration may contain a QSL even if genuine separatrix surfaces are absent. Identifying QSLs is an essential prerequisite for understanding the mechanism of magnetic energy release in this type of flares. It is also demonstrated that the magnetic field under study has a Hamiltonian structure, which makes it possible to reveal a geometrical reason for the appearance of QSL in this case." @default.
- W2963595556 created "2019-07-30" @default.
- W2963595556 creator A5053053378 @default.
- W2963595556 creator A5066018144 @default.
- W2963595556 creator A5070139152 @default.
- W2963595556 date "1999-12-01" @default.
- W2963595556 modified "2023-09-23" @default.
- W2963595556 title "Quasi-Separatrix Layers: Refined Theory and its Application to Solar Flares" @default.
- W2963595556 hasPublicationYear "1999" @default.
- W2963595556 type Work @default.
- W2963595556 sameAs 2963595556 @default.
- W2963595556 citedByCount "0" @default.
- W2963595556 crossrefType "journal-article" @default.
- W2963595556 hasAuthorship W2963595556A5053053378 @default.
- W2963595556 hasAuthorship W2963595556A5066018144 @default.
- W2963595556 hasAuthorship W2963595556A5070139152 @default.
- W2963595556 hasConcept C108411613 @default.
- W2963595556 hasConcept C108884401 @default.
- W2963595556 hasConcept C115260700 @default.
- W2963595556 hasConcept C121332964 @default.
- W2963595556 hasConcept C12426560 @default.
- W2963595556 hasConcept C172600038 @default.
- W2963595556 hasConcept C185001636 @default.
- W2963595556 hasConcept C198352243 @default.
- W2963595556 hasConcept C199631012 @default.
- W2963595556 hasConcept C202444582 @default.
- W2963595556 hasConcept C205995761 @default.
- W2963595556 hasConcept C2524010 @default.
- W2963595556 hasConcept C2779588948 @default.
- W2963595556 hasConcept C30475298 @default.
- W2963595556 hasConcept C33923547 @default.
- W2963595556 hasConcept C44870925 @default.
- W2963595556 hasConcept C62520636 @default.
- W2963595556 hasConcept C72886185 @default.
- W2963595556 hasConcept C74650414 @default.
- W2963595556 hasConcept C76379757 @default.
- W2963595556 hasConcept C9652623 @default.
- W2963595556 hasConceptScore W2963595556C108411613 @default.
- W2963595556 hasConceptScore W2963595556C108884401 @default.
- W2963595556 hasConceptScore W2963595556C115260700 @default.
- W2963595556 hasConceptScore W2963595556C121332964 @default.
- W2963595556 hasConceptScore W2963595556C12426560 @default.
- W2963595556 hasConceptScore W2963595556C172600038 @default.
- W2963595556 hasConceptScore W2963595556C185001636 @default.
- W2963595556 hasConceptScore W2963595556C198352243 @default.
- W2963595556 hasConceptScore W2963595556C199631012 @default.
- W2963595556 hasConceptScore W2963595556C202444582 @default.
- W2963595556 hasConceptScore W2963595556C205995761 @default.
- W2963595556 hasConceptScore W2963595556C2524010 @default.
- W2963595556 hasConceptScore W2963595556C2779588948 @default.
- W2963595556 hasConceptScore W2963595556C30475298 @default.
- W2963595556 hasConceptScore W2963595556C33923547 @default.
- W2963595556 hasConceptScore W2963595556C44870925 @default.
- W2963595556 hasConceptScore W2963595556C62520636 @default.
- W2963595556 hasConceptScore W2963595556C72886185 @default.
- W2963595556 hasConceptScore W2963595556C74650414 @default.
- W2963595556 hasConceptScore W2963595556C76379757 @default.
- W2963595556 hasConceptScore W2963595556C9652623 @default.
- W2963595556 hasLocation W29635955561 @default.
- W2963595556 hasOpenAccess W2963595556 @default.
- W2963595556 hasPrimaryLocation W29635955561 @default.
- W2963595556 hasRelatedWork W1631214701 @default.
- W2963595556 hasRelatedWork W1631684569 @default.
- W2963595556 hasRelatedWork W1994410159 @default.
- W2963595556 hasRelatedWork W2003615371 @default.
- W2963595556 hasRelatedWork W2011339744 @default.
- W2963595556 hasRelatedWork W2016121014 @default.
- W2963595556 hasRelatedWork W2022801424 @default.
- W2963595556 hasRelatedWork W2025417457 @default.
- W2963595556 hasRelatedWork W2046332887 @default.
- W2963595556 hasRelatedWork W2054084131 @default.
- W2963595556 hasRelatedWork W2092127678 @default.
- W2963595556 hasRelatedWork W2139843127 @default.
- W2963595556 hasRelatedWork W2142232558 @default.
- W2963595556 hasRelatedWork W2146035803 @default.
- W2963595556 hasRelatedWork W2167533925 @default.
- W2963595556 hasRelatedWork W2468445973 @default.
- W2963595556 hasRelatedWork W2973072041 @default.
- W2963595556 hasRelatedWork W3103554045 @default.
- W2963595556 hasRelatedWork W3131171026 @default.
- W2963595556 hasRelatedWork W3132066717 @default.
- W2963595556 hasVolume "9" @default.
- W2963595556 isParatext "false" @default.
- W2963595556 isRetracted "false" @default.
- W2963595556 magId "2963595556" @default.
- W2963595556 workType "article" @default.