Abstract
This paper demonstrates the important interplanetary manifestation of strongly tilted magnetic fields at the flare site. We start with analysis of Big Bear Solar Observatory (BBSO) observations of magnetic structures at sites of two flares responsible for >100 MeV neutron events. Based on these observations, a model of neutron production is considered. This model takes into account the observed large tilt of magnetic field lines at footpoints of flare magnetic loops. Results of the new calculations are compared with both previous calculations and observations. The tilt of magnetic field lines at the flare site is proved to be the most important parameter limiting anisotropy of high-energy secondary emission in solar flares.
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Anastasiadis, A. and Vlahos, L.: 1994, Astrophys. J. 428, 819.
Chupp, E. L., Trottet, G., Marschhaser, H., Pick, M., Soru-Escaut, I., Rieger, E., and Dunphy, P. P.: 1993, Astron. Astrophys. 275, 602.
Gueglenko, V. G., Kocharov, G. E., Kovaltsov, G. A., Kocharov, L. G., and Mandzhavidze, N. Z.: 1990, Solar Phys. 125, 91.
Hua, X.-M. and Lingenfelter, R. E.: 1987, Solar Phys. 107, 351.
Kocharov, L. G. and Kovaltsov, G. A.: 1995, Proc. 24th Int. Cosmic Ray Conf. 4, 82.
Kocharov, L. G., Lee, J. W., Zirin, H., Kovaltsov, G. A, Usoskin, I. G., Pyle, K. R., Shea, M. A., and Smart, D. F.: 1994, Solar Phys. 155, 149.
Kocharov, L. G., Lee, J. W., Wang, H., Zirin, H., Kovaltsov, G. A, and Usoskin, I. G.: 1995, Solar Phys. 158, 95.
Mandzhavidze, N. and Ramaty, R.: 1993, Nuclear Phys. B33, 141.
Pelaez, F., Mandrou, P., Niel, M., Mena, B., Vilmer, N., Trottet, G., Lebrun, F., Paul, J., Terekhov, O., Sunyaev, R., Churazov, E., Gilfanov, M., Denisov, D., Kuznetsov, A., Dyachkov, A., and Khavenson, N.: 1992, Solar Phys. 140, 121.
Ramaty, R. and Mandzhavidze, N.: 1994, in J. M. Ryan and W. T. Vestrand (eds.), High-Energy Solar Phenomena, AIP Conf. Proc., 294, 26.
Ramaty, R., Mandzhavidze, N., Kozlovsky, B., and Skibo, J. G.: 1993, Adv. Space. Res. 13(9), 275.
Terekhov, O., Sunyaev, R., Tkachenko, A., Denisenko, D., Kuznetsov, A., Barat, C., Dezalay, J.-P., and Talon, R.: 1996, Pis'ma v Astron. Zh. 22(3), 163.
Trottet, G., Vilmer, N., Barat, C., Dezalay, J.P., Talon, R., Sunyaev, R., Terekhov, O., and Kuznetsov, A.: 1993, Adv. Space. Res. 13(9), 285.
Vilmer, N., Trottet, G., Barat, C., Dezalay, J.P., Talon, R., Sunyaev, R., Terekhov, O., and Kuznetsov, A.: 1993, Lecture Notes in Physics, Proc. 7th Europ. Meeting on Solar Physics, Catania, 3.
Zirin, H.: 1988, Astrophysics of the Sun, Cambridge University Press, Cambridge.
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Kocharov, L.G., Torsti, J., Tang, F. et al. Impact of Magnetic Environment on the Generation of High-Energy Neutrons at the Sun. Solar Physics 172, 271–278 (1997). https://doi.org/10.1023/A:1004986526577
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DOI: https://doi.org/10.1023/A:1004986526577