Abstract
We conducted an experiment in conjunction with the total solar eclipse of 21 June 2001 in Lusaka, Zambia, to obtain the K-coronal spectrum simultaneously from multiple locations on the solar corona. Then we matched the observed K-coronal spectra with the modeled K-coronal spectra to determine the coronal electron temperature and its bulk flow speed. Here the models assumed a symmetric and isothermal corona with the coronal electron flowing away from the Sun at a constant flow speed. We were able to make remarkable matches between the observations and the models. In this paper we will try to explain how the anomalies in the matches could be accounted for with the introduction of streamers in the K-coronal spectral models.
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References
Baumbach, S.: 1937, Astr. Nach. 263, 121.
Cram, L. S.: 1976, Solar Phys. 48, 3.
Cranmer, S. R., Kohl, J. L., Noci, G., Antonucci, E., Tondello, E., Huber, G., Strachan, M. C. E., Panasyuk, A. V., Gardner, A. V., Romoli, L. D., Fineschi, S., Dobrzycka, D., Raymond, J. C., Nicolosi, P., Spadaro, O. H. W., Benna, C., Ciaravella, A., Giordano, S., O’Neal, R. H., Pernechele, C., Poletto, G., Smith, P. L., and Suleimanan, R. M.: 1984, Astrophys. J. 511, 481.
Fisher, R. and Guhathakurta, M.: 1995, Astrophys. J. 447, L139.
Guhathakurta, M. and Holzer, T. E.: 1994, Astrophys. J. 426, 782.
Ichimoto, K., Kumagai, K., Sano, I., Kobiki, T., Sakurai, T., and Munoz, A.: 1996, Publ. Astron. Soc. Japan. 48, 545.
Koutchmy, S. and Livishits, M.: 1992. Space Sci. Rev. 61, 393.
Newkirk, G.: 1961, Astrophys. J. 133, 983.
November, L. and Koutchmy, S.: 1996, Astrophys. J. 466, 512.
Reginald, N. L.: 2000, Ph.D. thesis, University of Delaware, Newark, DE, U.S.A.
Reginald, N. L and Davila, J. M.: 2000, Solar Phys. 195, 111.
Reginald, N. L, St.Cyr, O. C., Davila, J. M., and Brosius, J. W.: 2003, Astrophys. J. 599, 596.
Shklovskii, I. S.: 1965, Physics of the Solar Corona, Addison-Wesley Publishing Company, Inc, Reading, MA, p. 23.
Strachan, L., Kohl, J. L., Weiser, H., Withbroe, G. L., and Munro, R. H.: 1993, Astrophys. J. 412, 410.
van de Hulst, H. C.: 1950, Bull. Astron. Inst. Netherlands. 410, 135.
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Reginald, N.L., Davila, J.M. & Cyr, O.C.S. The Effects of Streamers on the Shape of the K-Coronal Spectrum. Sol Phys 225, 249–265 (2004). https://doi.org/10.1007/s11207-004-3516-2
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DOI: https://doi.org/10.1007/s11207-004-3516-2