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We assume that the radio source has a form of a magnetic loop segment with the squared cross section. The length of this segment along the magnetic field direction (the l coordinate) is L. 0 is the length of the side of the square section at the segment base as well as a location of the segment base at the lcoordinate. Then, for the square side and the magnetic field B in the radio

   

3.5 02-03.01.2007 3.0 2.5 =0.38 2.0

   



minimum energy of electrons. Then the solution of the equation (1) is:

   

term with the generalized hypergeometric functions in the relation f ( ) n is small and it is lower than 20% for changes of from 0.2 t 1. Note that the

   

0.5.

Summarizing the results of data analysis we can conclude as follows.

1. For all analyzed radio bursts the measure of the spatial variations of the superthermal electron distribution ( = 1.5 5.5) is greater than that for the spatial variations of the magnetic field ( = 0.36 -- 0.45).

2. The magnetic field in the active region AR 10933, determined from the observations made by RN-600, can be described by the model with =0.38, which corresponds to values estimated by our inversion method.

3. There is a close correlation between the parameter and. This relation can be explained in the frame of the Fokker-Planck equation considering only collisions of superthermal electrons with the background plasma.

This research was supported by Grant 09-02-00111a of the RFBR and by Grant 300030701 of the Grant Agency of the Academy of Sciences of the Czech Republic.

References

1. Bhme, A., Frstenberg, F., Hildebrandt, J., Saal, O., Krger, A., Hoyng, P., & Stevens, G.A. 1977, Solar Phys., 53, 139

2. Yasnov L.V., & Karlicky M. 2009, Solar Phys., in press

3. Dulk, G.A., & Marsh, K.A. 1982, ApJ, 259, 350

4. Rust, D.M. 1972, Solar Phys., 25, 141

5. Bogod V.., Yasnov L.V. 2009, strophys. Bull., 64 (4), 333 (in Russian)

6. Leach J. & Petrosian V. 1981, ApJ, 251, 781 : - 2009, -, , 5 11

   

.. 313 .. 439 .. 75 .. 155 .. 155 . 385 .. 209 .. 243 .. 43 .. 397, 417 . 237 .. 337 .. 423 .. 451 .. 477 .. 459, 461, 465 .. 427 .. 103 .. 267 : - 2009, -, , 5 11

   

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