Abstract
Observations of a surge prominence event on 31 May 1971 are discussed. The continuum emission observed during the upward acceleration of the surge is attributed to the scattering of photospheric radiation by free electrons. The observed scattered light intensity amounts to a few times 10−5 that of the central disk intensity leading to a column density of n e L≈1020 cm−2. The actual electron density when taking into account the presence of inhomogeneities is n e ≈1012 cm−3. The dynamic and morphological behaviour of the surge is considered.
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References
Allen, C. W.: 1963, Astrophysical Quantities, 2nd ed., Univ. of London, The Athlone Press.
Becker, U.: 1959, Z. Astrophys. 48, 189.
Bruzek, A.: 1969, in C. de Jager and Z. Švestka (eds.), Solar Flares and Space Research, p. 61.
Dunn, R. B.: 1971, in C. J. Macris (ed.), Physics of Solar Corona, NATO Advanced Study Institute (1970), p. 114.
Fort, B., Picat, J. P., Dantel, M., and Leroy, J. L.: 1973, Astron. Astrophys. 24, 267.
Gumteau, M.: 1975, AAS-Photo Bull. No. 1, 16.
Ivanov-Kholodnyi, G. S.: 1960, Soviet Astron. AJ. 3, 578.
Kirshner, R. P. and Noyes, R. W.: 1971, Solar Phys. 20, 428.
Perry, Father: 1884, Observatory 7, 158.
Roy, J.-R.: 1973a, Solar Phys. 28, 95.
Roy, J.-R.: 1973b, Solar Phys. 32, 139.
Roy, J.-R. and Tang, F.: 1975, Solar Phys. 42, 425.
Shklovskii, I. S.: 1965, Physics of the Solar Corona, Pergamon Press Ltd., Mass., U.S.A.
Solar-Geophysical Data, 327, Part II, 18, 1971, U.S. Dept. of Commerce, Boulder, Colorado, U.S.A. 80302.
Tandberg-Hanssen, E.: 1974, Solar Prominences, D. Reidel Publ. Co., Dordrecht-Holland.
Trouvelot, L.: 1875, Proc. Amer. Acad. 11, 62.
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Roy, JR. Observations of a surge prominence as a continuum event. Sol Phys 48, 149–158 (1976). https://doi.org/10.1007/BF00153341
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DOI: https://doi.org/10.1007/BF00153341