Abstract
Arch systems lying above quiescent prominences in the solar corona have long drawn the attention of eclipse observers, and such formations have been investigated since the end of the last century. Almost every eclipse photograph shows one or more arches, and in most cases the arch system is accompanied by a quiescent prominence below it and a helmet streamer above it. Also, in some cases there is a dark cavity between the arch system and the prominence.
On large-scale photographs obtained at the November 12, 1966 eclipse, detailed photometry has been carried out on a formation in the corona composed of a helmet streamer straddling two multiple-arch systems each with a dark cavity and a quiescent prominence. The excess of electrons in the arches and the deficiency in the cavities are evaluated. We find that the formation of a prominence requires much more material than available in the cavity before depletion. Consequently the condensation theory of coronal matter into prominences seems to have difficulties explaining the necessary amount of matter in the cases where coronal arches - delineating magnetic field lines above the cavity - may exclude inflow of material from the corona. We comment on the low velocity of solar wind in the helmet streamer.
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Balanovsky, J. and Perepelkin, E.: 1928, Monthly Notices Roy. Astron. Soc. 88, 740.
Bugoslavskaya, E. Y.: 1954, Comm. Sternberg Astron. Inst., No. 96, 36 (in Russian).
Gardner, I. C.: 1939, National Geographic Society - U.S. Navy Solar Eclipse Expedition of 1937 to Canton Island, National Geographic Society, Washington, Solar Eclipse ser., No. 1, 39.
Gosling, J. T., Hundhausen, A., Pizzo, V., and Asbridge, J. R.: 1972, J. Geophys. Res. 77, 5442.
Hagihara, Y. and Saito, K.: 1938, Astron. Obs., Sec. ser. 1, No. 2, 91.
Hirayama, T.: 1971, Solar Phys. 17, 50.
Hulst, H. C. van de: 1950, Bull. Astron. Inst. Neth. 11, 135.
Hundhausen, A.: 1972, Coronal Expansion and the Solar Wind, Springer-Verlag, Ch. 5.
Kawaguchi, I.: 1967, Solar Phys. 1, 420.
Kiepenheuer, K. O.: 1953, Accad. Naz. Lincei, Conv. Volta 11, 148.
Kostinsky, S. and Hansky, A.: 1896, Mem. Soc. Spettroscopisti Italiani 25, 283.
Koutchmy, S.: 1969, Astrophys. Letters 3, 215.
Koutchmy, S.: 1971, Astron. Astrophys. 13, 70.
Koutchmy, S.: 1972, Solar Phys. 24, 373.
Koutchmy, S. and Laffineur, M.: 1970, Solar Phys. 13, 250.
Koutchmy, S. and Schatten, K. H.: 1971, Solar Phys. 17, 117.
Laffineur, M., Block, M., and Bretz, M.: 1966, in D. E. Billings (ed.), A Guide to the Solar Corona, Academic Press, Fig. 2.4, p. 20.
Laffineur, M., Burnichon, M. L., and Koutchmy, S.: 1970, Solar Phys. 12, 14.
Leroy, J. L. and Servajean, R.: 1966, Ann. Astrophys. 29, 263.
Michelson, N. N.: 1955, Report of Pulkovo Obs. 19, No. 153, 56 (in Russian).
Newkirk, G. N. Jr.: 1968, Solar Phys. 3, 366.
Newkirk, G. N. Jr.: 1970, Nature 226, 1098.
Newkirk, G. N. Jr., Dupree, R. G., and Schmahl, E. I.: 1970, Solar Phys. 15, 15.
Noci, G.: 1973, in preparation.
Owaki, N. and Saito, K.: 1967, Publ. Astron. Soc. Japan 19, 279.
Pneuman, G. W.: 1972, Astrophys. J. 177, 793.
Pneuman, G. W. and Kopp, R. A.: 1971, Solar Phys. 18, 258.
Saito, K.: 1959, Publ. Astron. Soc. Japan 11, 234.
Saito, K.: 1972, Ann. Tokyo Astron. Obs., 2nd Ser. 13, 93.
Saito, K. and Hata, S.: 1970, Ann. Tokyo Astron. Obs., 2nd Ser. 12, No. 2, 151.
Saito, K. and Hyder, C. L.: 1968, Solar Phys. 5, 61.
Saito, K. et al.: 1971, Tokyo Astron. Obs. Rept. 15, 445 (in Japanese).
Shklovskii, I. S.: 1965, Physics of the Solar Corona, Pergamon Press.
Smith, S. M. and Weinstein, L. M.: 1970, Circular from NASA.
Tandberg-Hanssen, E.: 1973, Solar Prominences, Gordon and Breach, New York.
Tokyo Astron. Obs. Expedition: 1934, Tokyo Astron. Obs. Rept. 2, 59 (in Japanese).
Von Klüber, H.: 1932, Z. Astrophys. 4, 1.
Von Klüber, H.: 1961, Monthly Notices Roy. Astron. Soc. 123, 61.
Vsekhsviatsky, S. K.: 1963, in J. W. Evans (ed.), The Solar Corona, Academic Press, p. 271.
Vsekhsviatsky, S. K. and Bougoslavsky, E.: 1944, Monthly Notices Roy. Astron. Soc. 104, 140.
Vsekhsviatsky, S. K. and Ivanchuk, V. I.: 1961, Astron. Zh. 38, 855 (in Russian).
Waldmeier, M.: 1962a, Astron. Mitt. Zürich, Nr. 248, 1.
Waldmeier, M.: 1962b, Naturwissenschaften 4, 74.
Waldmeier, M.: 1963, Astron. Mitt. Zürich, Nr. 258.
Waldmeier, M.: 1967a, Z. Astrophys. 67, 463.
Waldmeier, M.: 1967b, Astron. Mitt. Zürich 276, 1.
Waldmeier, M. and Weber, S. E.: 1968, Astron. Mitt. Zürich, Nr. 287, 1.
Waldmeier, M., Arber, H., and Bachmann, H.: 1957, Z. Astrophys. 42, 156.
Wallenquist, Å.: 1957, Uppsala Astron. Obs. Ann. 4, 1.
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Saito, K., Tandberg-Hanssen, E. The arch systems, cavities and prominences in the helmet streamer observed at the solar eclipse, November 12, 1966. Sol Phys 31, 105–121 (1973). https://doi.org/10.1007/BF00156076
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DOI: https://doi.org/10.1007/BF00156076