Abstract
High velocity Hα ejections were observed in association with an important solar flare on March 12, 1969, and simultaneously with Type II followed by Type IV radio emission detectable to 3–4 solar radii (R ⊙) from the center of the Sun. From a sequence of Hα coronagraph photographs, trajectories and velocity determinations were made for fragments of the flare spray which was visible to a distance of 2 R ⊙. The temporal and spatial relationship between the optical and radio events is discussed. The mass motions appear to be controlled by the gravitational field while the fragments move in the direction of the open magnetic field lines.
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Altschuler, M. D. and Newkirk, G.: 1969, Solar Phys. 9, 131.
Dodson, H. W., Hedeman, E. R., and Chamberlain, J.: 1953a, Astrophys. J. 117, 68.
Dodson, H. W., Hedeman, E. R., and Owren, L.: 1953b, Astrophys. J. 118, 169.
Frost, K. J.: 1969, Astrophys. J. 158, L159.
Hyder, C. L. and Lites, B. W.: 1970, Solar Phys. 14, 147.
Kundu, M. R.: 1970, private communication.
Macris, C. J.: 1968, Solar Phys. 5, 361.
McCabe, M. K. and Fisher, R. R.: 1970, Solar Phys. 14, 212.
Menzel, D. H., Smith, E. v. P., DeMastus, H., Ramsey, H., Schnable, G., and Lawrence, R.: 1956, Astron. J. 61, 186.
Newkirk, G., Altschuler, M. D., and Harvey, J.: 1968, in K. O. Kiepenheuer (ed.), ‘Structure and Development of Solar Active Regions’, IAU Symp. 35, 379.
Newkirk, G. and Altschuler, M. D.: 1970, Solar Phys. 13, 131.
O'Brien, W. E.: 1970, AFCRL-70-0425, Environmental Research Papers, No. 328.
Prata, S. W.: 1971, Solar Phys. (submitted).
Riddle, A. C.: 1970, Solar Phys. 13, 448.
Smith, E. v. P.: 1968, in Y. Öhman (ed.), ‘Mass Motions in Solar Flares and Related Phenomena’, Nobel Symp. 9, 137.
Solar Geophysical Data: 1969, Published by ESSA, U.S. Department of Commerce.
Warwick, J. W.: 1957, Astrophys. J. 125, 811.
Warwick, J. W.: 1965, Solar System Radio Astronomy (ed. by J. Aarons, Plenum Press), Chap. 8.
Zirin, H.: 1968, in Y. Öhman (ed.), ‘Mass Motions in Solar Flares and Related Phenomena’, Nobel Symp. 9, 131.
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McCabe, M.K. Mass motions in a flare spray. Sol Phys 19, 451–462 (1971). https://doi.org/10.1007/BF00146072
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DOI: https://doi.org/10.1007/BF00146072