A model of impulsive loop flares revisited

Autor:	D. F. Smith, S. H. Brecht
Rok vydání:	1994
Předmět:	Physics Condensed matter physics Solar flare Astronomy and Astrophysics Electron Plasma Thermal conduction law.invention Loop (topology) Classical mechanics Physics::Plasma Physics Space and Planetary Science Electrical resistivity and conductivity law Excited state Flare
Zdroj:	Solar Physics. 153:337-345
ISSN:	1573-093X 0038-0938
DOI:	10.1007/bf00712509
Popis:	A critical examination of the components of the recent impulsive loop flare model of Takakura is made. It is found that his analysis of the stability of the electron distribution resulting from anomalous heat conduction is in error and electron plasma waves would not be excited. Rather, in the regions where the electron/proton temperature ratioT e/T i ≲ 10, electrostatic ion-cyclotron waves would be excited and in the regions whereT e ≳ 10, ion-acoustic waves would be excited. Ratios ofT e/T i ≳ 10 occur only in the late time development behind the conduction fronts. Since the anomalous resistivity due to electrostatic ion-cyclotron waves is fortuitously about 70% of the one used by Takakura, the general development will follow closely the one calculated by him. Because the anomalous resistivity due to ion-acoustic waves is about 95 times the one used by Takakura, the development in the parts of the loop whereT e/T i ≳ 10 for late times would be altered considerably.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::73bae629e00414da97ff924e226274ea https://doi.org/10.1007/bf00712509 Zobrazit plný text záznamu Full text from SpringerLink