Particle Acceleration

Vlahos, L.; Machado, M. E.; Ramaty, R.; Murphy, R. J.; Alissandrakis, C. E.; Bai, T.; Batchelor, D. A.; Benz, A. O.; Chupp, E. L.; Ellison, Donald C.; Evenson, P.; Forrest, D. J.; Holman, Gordon D.; Kane, S. R.; Kaufmann, P.; Kundu, M. R.; Lin, R. P.; MacKinnon, A. L.; Nakajima, Hiroshi; Pesses, M. E.; Pick, M.; Ryan, Joseph; Schwartz, R. A.; Smith, D. F.; Trottet, G.; Tsuneta, S.; Hoven, G. Van

doi:10.1007/978-94-009-2331-7_2

Cited by 4 publications

(2 citation statements)

References 200 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The emission at medium-energy X-rays (2:30 keV) caused by bremsstrahlung of subrelativistic electrons is usually leading the output at higher energies. Very impulsive events show delays between X-and gamma-rays of zero to several seconds, whereas gradual and long duration events exhibit delays of order 1 minute (Forrest & Chupp 1983;Yoshimori et al 1983;Kane et al 1986;Vlahos et al 1986;. These delays have been interpreted in various ways.…”

Section: Introductionmentioning

confidence: 99%

Gamma-Ray Precursors of Solar Flares

Rieger

1994

International Astronomical Union Colloquium

View full text Add to dashboard Cite

Bursts have been observed by the gamma-ray spectrometer on SMM at medium-and high-energy gamma-rays that precede the flare maximum. The negligible contribution of nuclear lines in the spectra of these events and their impulsive appearance suggests that they are hard-electron-dominated events superposed on the flares. Spatial resolution at gamma-ray energies will be necessary to decide whether this kind of bursts is cospatial with the flares or whether they occur in the flares' vicinity.

show abstract

Section: Introductionmentioning

confidence: 99%

Gamma-Ray Precursors of Solar Flares

Rieger

1994

International Astronomical Union Colloquium

View full text Add to dashboard Cite

show abstract

“…There is an extensive literature on this topic; some more recent reviews include those by Ramaty et al (1980), Heyvaerts (1981), Forman, Ramaty and Zweibel (1985), de Jager (1986), Somov (1986a, Vlahos et al (1986), Ramaty and Forman (1987) and Sakai and Ohsawa (1987). Related reviews are those of acceleration in the interplanetary medium, e.g., Fisk (1979), Pesses, Decker and Armstrong (1982), Forman and Webb (1985), and also some more general reviews of acceleration with some emphasis on solar applications, e.g., Toptygin (1980), Axford (1981), Toptyghin (1983).…”

Section: Introductionmentioning

confidence: 99%

Particle Acceleration Processes in the Solar Corona

Melrose¹

1990

Aust. J. Phys.

View full text Add to dashboard Cite

Theoretical ideas on particle acceleration associated with solar flares are reviewed. A historical outline is used to introduce the various acceleration mechanisms. These are stochastic acceleration in its various forms, diffusive acceleration at shock fronts, shock drift acceleration, resonant acceleration, acceleration during magnetic reconnection and acceleration by parallel electric fields in double layers or electrostatic shocks. Particular emphasis is placed on so-called first phase acceleration of electrons in solar flares, which is conventionally attributed to bulk energisation of electrons (Ramaty et al. 1980). There is no widely accepted theory for bulk energisation, which may be regarded as an enhanced form of heating. Ideas on bulk energisation are discussed critically. It is argued that the dissipation cannot be due to classical resistivity and involves anomalous resistivity or hyperresistivity, e.g., in multiple double layers. The dissipation must occur in very many localised regions. Bulk energisation due to magnetic reconnection is discussed briefly. A model for bulk energisation due to the continual formation and decay of weak double layers is outlined

show abstract

On the threshold effect of proton acceleraton in solar flares

Miroshnichenko

1995

Sol Phys

View full text Add to dashboard Cite

Particle Acceleration

Cited by 4 publications

References 200 publications

Gamma-Ray Precursors of Solar Flares

Gamma-Ray Precursors of Solar Flares

Particle Acceleration Processes in the Solar Corona

On the threshold effect of proton acceleraton in solar flares

Contact Info

Product

Resources

About