Hostname: page-component-cd9895bd7-dk4vv Total loading time: 0 Render date: 2024-12-26T04:05:27.150Z Has data issue: false hasContentIssue false
  • English
  • Français

Thermal and Nonthermal Interpretations of Flare X-Ray Bursts

Published online by Cambridge University Press:  14 August 2015

S. Kahler
S. Kahler*
Affiliation:
American Science and Engineering, Cambridge, Mass., U.S.A.

Abstract

Core share and HTML view are not available for this content. However, as you have access to this content, a full PDF is available via the ‘Save PDF’ action button.

Various authors have presented arguments for either the thermal or the nonthermal interpretations of impulsive E > 20 KeV X-ray bursts and slowly varying E < 10 keV X-ray bursts. In this review the arguments for and against the prevailing opinion that the impulsive bursts are nonthermal and the slowly varying bursts are thermal are presented.

For the impulsive bursts we discuss the spectra, electron mean free paths, center-to-limb distributions of both the numbers of events and spectra of events, and polarization data as relevant criteria. For the slowly varying events we discuss electron self collision times, distribution of X-ray temporal parameters, associated gradual rise and fall radio bursts, spectral and time profiles of special events and center-to-limb distributions of numbers of events as the relevant criteria.

Type
Part 3: Solar Flares
Information
Symposium - International Astronomical Union , Volume 68: Solar X, Gamma, and EUV Radiation , 1975 , pp. 211 - 231
Copyright
Copyright © Reidel 1975 

References

Arnoldy, R. L., Kane, S. R., and Winckler, J. R.: 1968, Astrophys. J. 151, 711.CrossRefGoogle Scholar
Blake, R. L. and House, L. L.: 1971, Astrophys. J. 166, 423.CrossRefGoogle Scholar
Brown, J. C.: 1972, Solar Phys. 26, 441.CrossRefGoogle Scholar
Brown, J. C.: 1974, in Newkirk, G. (ed.), ‘Coronal Disturbances’, IAU Symp. 57, D. Reidel Publ. Co., Dordrecht, Holland, p. 395.Google Scholar
Brown, J. C., McClymont, A. N., and McLean, I. S.: 1974, Nature 247, 448.CrossRefGoogle Scholar
Chubb, T. A.: 1970, in Dyer, E. R. (General Ed.), Solar Terrestrial Physics, Vol. 1, D. Reidel Publ. Co., Dordrecht, Holland, p. 99.Google Scholar
Culhane, J. L. and Phillips, K. J. H.: 1970, Solar Phys. 11, 117.CrossRefGoogle Scholar
Datlowe, D. W., Elcan, M. J., and Hudson, H. S.: 1974, Solar Phys. 39, 155 CrossRefGoogle Scholar
de Jager, C. and Kundu, M. R.: 1963, Space Res. 3, 836.Google Scholar
Doschek, G. A., Meekins, J. F., Kreplin, R. W., Chubb, T. A., and Friedman, H.: 1972, in Schindler, K. (ed.), Cosmic Plasma Physics, Plenum, p. 165.CrossRefGoogle Scholar
Drake, J. F.: 1971, Solar Phys. 16, 152.CrossRefGoogle Scholar
Elwert, G. and Haug, E.: 1971, Solar Phys. 20, 413.CrossRefGoogle Scholar
Frost, K. J.: 1969, Astrophys. J. 158, L159.CrossRefGoogle Scholar
Frost, K. J. and Dennis, B. R.: 1971, Astrophys. J. 165, 655.CrossRefGoogle Scholar
Hudson, H. S. and Ohki, K.: 1972, Solar Phys. 23, 155.CrossRefGoogle Scholar
Jackson, J. D.: 1962, Classical Electrodynamics, Wiley, New York.Google Scholar
Kahler, S.: 1971a, Astrophys. J. 164, 365.CrossRefGoogle Scholar
Kahler, S.: 1971b, Astrophys. J. 168, 319.CrossRefGoogle Scholar
Kahler, S. W.: 1973, in Ramaty, R. and Stone, R. G. (eds.), High Energy Phenomena on the Sun, NASA SP-342, p. 124.Google Scholar
Kahler, S. W. and Kreplin, R. W.: 1971, Astrophys. J. 168, 531.CrossRefGoogle Scholar
Kahler, S. W., Meekins, J. F., Kreplin, R. W., and Bowyer, C. S.: 1970, Astrophys. J. 162, 293.CrossRefGoogle Scholar
Kane, S. R.: 1971, Astrophys. J. 170, 587.CrossRefGoogle Scholar
Kane, S. R.: 1972, Solar Phys. 27, 174.CrossRefGoogle Scholar
Kane, S. R.: 1973a, in Ramaty, R. and Stone, R. G. (eds.), High Energy Phenomena on the Sun, NASA SP-342, p. 55.Google Scholar
Kane, S. R.: 1973b, in Newkirk, G. (ed.), ‘Coronal Disturbances’, IAU Symp. 57, D. Reidel Publ. Co., Dordrecht, Holland, p. 105.Google Scholar
Kane, S. R.: 1975 (to be published).Google Scholar
Kane, S. R. and Anderson, K. A.: 1970, Astrophys. J. 162, 1003.CrossRefGoogle Scholar
Landini, M., Monsignori Fossi, B. C., and Pallavicini, R.: 1972, Solar Phys. 27, 164.CrossRefGoogle Scholar
Landini, M., Monsignori Fossi, B. C., and Pallavicini, R.: 1973, Solar Phys. 29, 93.CrossRefGoogle Scholar
Lin, R. P.: 1971, Acceleration of 10–100 keV Electrons in Solar Flares, Seminar on the Acceleration of Particles in Near-Earth and Interplanetary Space, Galaxy, and Metagalaxy, Leningrad.CrossRefGoogle Scholar
Lin, R. P., Evans, L. G., and Fainberg, J.: 1973, Astrophys. Letters 14, 191.Google Scholar
Milkey, R. W.: 1971, Solar Phys. 16, 465.CrossRefGoogle Scholar
Ohki, K.: 1969, Solar Phys. 7, 260.CrossRefGoogle Scholar
Parks, G. K. and Winckler, J. R.: 1969, Astrophys. J. 155, L117.CrossRefGoogle Scholar
Peterson, L. E., Datlowe, D. W., and McKenzie, D. L.: 1973, in Ramaty, R. and Stone, R. G. (eds.), High Energy Phenomena on the Sun, NASA SP-342, p. 132.Google Scholar
Phillips, K. J. H.: 1973, Observatory 93, 17.Google Scholar
Phillips, K. J. H. and Neupert, W. M.: 1973, Solar Phys. 32, 209.CrossRefGoogle Scholar
Pinter, S.: 1969, Solar Phys. 8, 142.CrossRefGoogle Scholar
Ramaty, R.: 1973, in Ramaty, R. and Stone, R. G. (eds.), High Energy Phenomena on the Sun, NASA SP-342, p. 188.Google Scholar
Santangelo, N., Horstman, H., and Horstman-Moretti, E.: 1973, Solar Phys. 29, 143.CrossRefGoogle Scholar
Shaw, M. L.: 1972, Solar Phys. 27, 436.CrossRefGoogle Scholar
Sommerfeld, A. J. F.: 1951, Atombau und Spectrallinien, Ungar, New York.Google Scholar
Spitzer, L.: 1962, Physics of Fully Ionized Gases, Interscience, New York.Google Scholar
Sturrock, P. A.: 1973, in Ramaty, R. and Stone, R. G. (eds.), High Energy Phenomena on the Sun, NASA SP-342, p. 3.Google Scholar
Takakura, T. and Kai, K.: 1966, Publ. Astron. Soc. Japan 18, 57.Google Scholar
Takakura, T., Ohki, K., Shibuya, N., Fujii, M., Matsuoka, M., Miyamoto, S., Nishamura, J., Oda, M., Ogawara, Y., and Ota, S.: 1971, Solar Phys. 16, 454.CrossRefGoogle Scholar
Tindo, I. P., Ivanov, V. D., Mandel'stam, S. L., and Shuryghin, A. I.: 1972a, Solar Phys. 24, 429.CrossRefGoogle Scholar
Tindo, I. P., Ivanov, V. D., Valniček, B., and Livshits, M. A.: 1972b, Solar Phys. 27, 426.CrossRefGoogle Scholar
Tindo, I. P., Mandel'stam, S. L., and Shuryghin, A. I.: 1973, Solar Phys. 32, 469.CrossRefGoogle Scholar
Tomblin, F. F.: 1972, Astrophys. J. 171, 377.CrossRefGoogle Scholar
Wolff, R. S.: 1973, in Ramaty, R. and Stone, R. G. (eds.), High Energy Phenomena on the Sun, NASA SP-342, p. 162.Google Scholar