Springer Nature is making SARS-CoV-2 and COVID-19 research free. View research | View latest news | Sign up for updates

Microwave emission from solar flares and comparison with observations

  • 34 Accesses

Abstract

We have studied the evolution of electron energy and angular distributions using Monte Carlo technique for electron beams directed vertically downwards towards chromosphere for incident energies 30 keV, and 300 keV at different incidence angles. Using these distributions we have calculated microwave flux for different frequencies at a fixed column density as well as for a fixed frequency at different column densities. We have also calculated the total microwave flux coming out of solar atmosphere and have compared it with observations. Our results agree well with observational results and produce the observed nature of flux.

This is a preview of subscription content, log in to check access.

References

  1. Acton, L., et al.: 1992,Science 258, 618.

  2. Aschwanden, M.J. and Gudel, M.: 1992,Astrophys. J. 401, 736.

  3. Benz, A.O. and Kane, S.R.: 1986,Sol. Phys. 104, 179.

  4. Batchelor, D.: 1994,Astrophys. J. Suppl. Ser. 90, 697.

  5. Bohme, A., Furstenberg, F., Hildebrandt, J., Saal, O., Kruger, A., Hoyang, P. and Stevens, G.A.: 1977,Sol. Phys. 53, 139.

  6. Crannel, C.J., Frost, K.J., Matzler, C., Ohki, K. and Saba, J.R.: 1978,Astrophys. J. 223, 620.

  7. Dulk, G.A., Melrose, D.B. and Smerd, S.F.: 1978,Proc. Astron. Soc. Aust. 3, No. 4 P (243–247).

  8. Dulk, G.A. and Dennis, B.R.: 1982,Astrophys. J. 260, 875.

  9. Dulk, G.A. and Marsh, K.A.: 1982,Astrophys. J. 259, 350.

  10. Gudel, M. and Zlobec, P.: 1991,Astron. Astrophys. 245, 299.

  11. Haug, E., Elwert, A.G. and Rausaria, R.R.: 1985,Astron. Astrophys. 146, 159.

  12. Hudson, H.S., Acton, L.W., Hirayama, T. and Uchida, Y.: 1992,Publ. Astron. Soc. Jpn. 44 (5), L77.

  13. Kundu, M.R.: 1961,J. Geophys. Res. 66, 4308.

  14. Koul, P.K., Moza, K.L., Khosa, P.N. and Rausaria, R.R.: 1985,Astrophys. J. 292, 725.

  15. Koul, P.K., Rausaria, R.R. and Khosa, P.N.: 1987,Sol. Phys. 108, 739.

  16. Matzler, C., Bai, T., Crannell, C.J. and Frost, K.J.: 1978,Astrophys. J. 223, 1058.

  17. Matsunita, K., Masuda, S., Kosugi, T., Inda, M. and Yaji, K.: 1992,Publ. Astron. Soc. Jpn. 44 (5), L89.

  18. Nitta, N., White, S.M., Schmahl, E.J. and Kundu, M.R.: 1991,Sol. Phys. 132, 125.

  19. Peterson, L.E. and Winckler, J.R.: 1959,J.G. Rev. 64, 697.

  20. Petrosian, V.: 1981,Astrophys. J. 251, 727.

  21. Ramaty, R.: 1969,Astrophys. J. 153, 753.

  22. Sakao, T., et al.: 1992Publ. Astron. Soc. Jpn. 44 (5), L83.

  23. Stix, M.: 1962,Theory of Plasma Waves.

  24. Svestka, Z.: 1976,Solar Flares, D. Reidel Publ. Co., Dordrecht, Holland.

  25. Trulson, J. and Fejar, J.A.: 1970,Plasma Phys. 4, 825.

  26. Takakura, T. and Scalise, E.: 1970,Sol. Phys. 11, 434.

  27. Takakura, T.: 1972,Sol. Phys. 26, 151.

Download references

Author information

Rights and permissions

Reprints and Permissions

About this article

Cite this article

Bakaya, R., Rausaria, R.R. Microwave emission from solar flares and comparison with observations. Astrophys Space Sci 243, 351–362 (1996). https://doi.org/10.1007/BF00644705

Download citation

Keywords

  • Atmosphere
  • Microwave
  • Flare
  • Electron Beam
  • Electron Energy