Abstract
We present results of the first simultaneous observations of zebra patterns (ZPs) with super-fine spiky structure in the microwave range made at two observatories ∼1000 km apart (Beijing and Nanjing, China). The fine structure was recorded by a spectra polarimeter in the 5.2 – 7.6 and 2.8 – 3.6 GHz ranges at the Huairou station and by the spectrometer in the 4.5 – 7.5 GHz range at the Purple Mountain Observatory. Simultaneously, the locations of radio sources were observed by the Siberian Solar Radio Telescope (SSRT) at 5.7 GHz. For a general analysis of the April 10, 2001 event, the Solar and Heliospheric Observatory/Michelson Doppler Imager (SOHO/MDI) data and Transition Region and Coronal Explorer (TRACE) images in EUV 171 Å line were used. The circular polarization degree was very weak for the burst background radio emission and moderate to strong for the fine structure. The polarization sign in all the cases probably corresponds to the extraordinary wave mode. Estimations of the magnetic field values in the whistler model for fine structure agree well with the extrapolated values from magnetic maps. Given the possibility of wave transformation in the perpendicular magnetic field and the spiky structure of the ZP, the whistler wave model appears to be the most appropriate explanation for the zebra stripe phenomenon.
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Altyntsev, A.T., Kuznetsov, A.A., Meshalkina, N.S., Rudenko, G.V., and Yan, Yihua: 2005, Astron. Astrophys. 431, 1037.
Aschwanden, M.J.: 2004, Physics of the Solar Corona, Springer, Praxis Publishers, Chichester, UK.
Aschwanden, M.J., Newmark, J.S., Delabouniere, J.-P., et al.: 1999, Astrophys. J. 515, 842.
Benz, A.O.: 1993, Plasma Astrophysics, Kinetic Processes in Solar and Stellar Coronae, Kluwer Academic Publisher, Dordrecht.
Chernov, G.P.: 1976, Soviet Astron. 20, 582.
Chernov, G.P.: 1990a, Soviet Astron. 34, 66.
Chernov, G.P.: 1990b, Solar Phys. 130, 75.
Chernov, G.P.: 1996, Astron. Rep. 40, 561.
Chernov, G.P.: 2005, Plasma Phys. Rep. 31, 314.
Chernov, G.P., Yan, Y.H., and Fu, Q.J: 2003, Astron. Astrophys. 406, 1071.
Chernov, G.P., Markeev, A.K., Poquerusse, M., Bougeret, J.L., Klein, K.-L., Mann, G., Aurass, H., and Aschwanden M.J.: 1998, Astron. Astrophys. 334, 314.
Chernov, G.P., Fu, Q.J., Lao, D.B., and Hanaoka, Y.: 2001a, Solar Phys. 201, 153.
Chernov, G.P., Yasnov, L.V., Yan, Y.H., and Fu, Q.J.: 2001b, Chin. J. Astron. Astrophys. 1, 525.
Elgaroy: 1982, Intermediate Drift Bursts, Report 53, ITA, University of Oslo.
Fleishman, G.D., Fu, Q.J., Huang, G.L., Melnikov, V.F., and Wang, M.: 2002, Astron. Astrophys. 385, 671.
Foley, C.R., Harra, L.K., Culhane, J.L., and Mason, K.O.: 2001, Astrophys. J. 560, L91.
Fu, Q.J., Qin, J.H., Ji, H.R., and Pei, L.B.: 1995, Solar Phys. 160, 97.
Handy, B.N., Acton, L.W., Kankelborg, C.C., Wolfson, C.J., Akin, D.J., and 43 co-authors: 1999, Solar Phys. 187, 229.
Karlicky, M., Barta, M., Jiricka, K., Meszarosova, H., Fernandes, F.C.R., and Cecatto, J.R.: 2001, Astron. Astrophys. 375, 638.
Kruger, A.: 1979, Introduction to Solar Radio Astronomy and Radio Physics, Reidel, Dordrecht.
Kuijpers, J.: 1975, Solar Phys. 44, 173.
Kuznetsov, A.A.: 2005, Astron. Astrophys. 438, 341.
LaBelle, J., Treumann, R.A., Yoon, P.H., and Karlicky, M.: 2003, Astrophys. J. 593, 1195.
Maltseva, O.A. and Chernov, G.P.: 1989, Kinematika i Fizika Nebesnykh Tel 5, 39.
Mollwo, L.: 1983, Solar Phys. 83, 305.
Mollwo, L.: 1988, Solar Phys. 116, 323.
Sakurai, T., Ishimoto, K., Nishino, Y., Shinodo, K., and 10 co-authors: 1995, PASJ, 47, 81.
Slottje, C.: 1981, Atlas of Fine Structures of Dynamic Spectra of Solar Type IV-dm and Some Type II Radio Bursts, Utrecht Observatory.
Winglee, R.M. and Dulk G.A.: 1986, Astrophys. J. 307, 808.
Yan, Y. and Sakurai, T.: 1997, Solar Phys. 174, 65.
Yan, Y. and Sakurai, T.: 2000, Solar Phys. 195, 89.
Zheleznykov, V.V. and Zlotnik, E.Ya.: 1975, Solar. Phys. 44, 461.
Zlotnik, E.Ya., Zaitsev, V.V., Aurass, H., and Hofmann, A.: 2003, Astron. Astrophys. 410, 1011.
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Chernov, G.P., Sych, R.A., Yan, Y. et al. Multi-Site Spectrographic and Heliographic Observations of Radio Fine Structure on April 10, 2001. Sol Phys 237, 397–418 (2006). https://doi.org/10.1007/s11207-006-0111-8
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DOI: https://doi.org/10.1007/s11207-006-0111-8