Abstract
We have used data from the HAO white light coronagraph and AS&E X-ray telescope on Skylab to investigate the coronal manifestations of 18 prompt solar proton events observed with the GSFC detectors on the IMP-7 spacecraft during the Skylab period. We find evidence that a mass ejection event is a necessary condition for the occurrence of a prompt proton event. Mass ejection events can be observed directly in the white light coronagraph when they occur near the limb and inferred from the presence of a long decay X-ray event when they occur on the disk. We suggest that: (1) the occurrence of mass ejection events facilitates the escape of protons - whether accelerated at low or high altitudes - to the interplanetary medium; and (2) there may exist a proton acceleration region above or around the outward moving ejecta far above the flare site.
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References
Bai, T. and Ramaty, R.: 1976, Solar Phys. 49, 343.
Dulk, G. A., Smerd, S. F., MacQueen, R. M., Gosling, J. T., Magun, A., Stewart, R. T., Sheridan, K. V., Robinson, R. D., and Jacques, S.: 1976, Solar Phys. 49, 369.
Fisk, L. A. and Schatten, K. H.: 1972, Solar Phys. 23, 204.
Gosling, J. T., Hildner, E., MacQueen, R. M., Munro, R. H., Poland, A. I., and Ross, C. L.: 1974, J. Geophys. Res. 79, 4581.
Gosling, J. T., Hildner, E., MacQueen, R. M., Munro, R. H., Poland, A. I., and Ross, C. L.: 1975, Solar Phys. 40, 439.
Gosling, J. T., Hildner, E., MacQueen, R. M., Munro, R. H., Poland, A. I., and Ross, C. L.: 1976, Solar Phys. 48, 389.
Haurwitz, M. W., Yoshida, S., and Akasofu, S. I.: 1965, J. Geophys. Res. 70, 2977.
Hildner, E., Gosling, J. T., MacQueen, R. M., Munro, R. H., Poland, A. I., and Ross, C. L.: 1975, Solar Phys. 42, 163.
Kahler, S.: 1977, Astrophys. J. 214, 891.
Lin, R. P. and Hudson, H. S.: 1976, Solar Phys. 50, 153.
MacQueen, R. M., Gosling, J. T., Hildner, E., Munro, R. H., Poland, A. I., and Ross, C. L.: 1974, Proc. Soc. Photo-Optical Inst. Eng. 44, 207.
McCracken, K. G. and Rao, U. R.: 1970, Space Sci. Rev. 11, 155.
McKibben, R. B.: 1973, J. Geophys. Res. 78, 7184.
Munro, R., Hildner, E., and Roach, G.: 1976, Revised Transient List, HAO Memorandum (unpublished).
Newkirk, G.: 1973, in R. Ramaty and R. G. Stone (eds.), High Energy Phenomena on the Sun, NASA SP-342, p. 124.
Palmer, I. D. and Smerd, S. F.: 1972, Solar Phys. 26, 460.
Reid, G. C.: 1964, J. Geophys. Res. 69, 2659.
Reinhard, R. and Wibberenz, G.: 1974, Solar Phys. 36, 473.
Sarris, E. T., Krimigis, S. M., and Armstrong, T. P.: 1976, Geophys. Res. Letters 3, 133.
Schatten, K. H. and Mullan, D. J.: 1977, J. Geophys. Res. 82, 5609.
Sonnerup, B. U. O.: 1973, in R. Ramaty and R. G. Stone (eds.), High Energy Phenomena on the Sun, NASA SP-342, p. 357.
Solar-Geophysical Data: 1974, NOAA Boulder, U.S. Department of Commerce, Environmental Science Services Administration.
Sturrock, P. A.: 1974, in G. Newkirk (ed.), ‘Coronal Disturbances’, IAU Symp. 57, 437.
Švestka, Z.: 1976, Solar Flares, D. Reidel Publ. Co., Dordrecht, Holland.
Vaiana, G. S., Van Speybroeck, L., Zombeck, M. V., Krieger, A. S., Silk, J. K., and Timothy, A.: 1977, Space Sci. Instr. 3, 19.
Van Hollebeke, M. A., Ma Sung, L. S., and McDonald, F. B.: 1975 Solar Phys. 41, 189.
Wild, J. P. and Smerd, S. F.: 1972, Ann. Rev. Astron. Astrophys. 10, 159.
Wild, J. P., Smerd, S. F., and Weiss, A. A.: 1963, Ann. Rev. Astron. Astrophys. 1, 291.
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Also: Dept. of Physics and Astronomy, University of Maryland, College Park, Md. 20742, U.S.A.
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Kahler, S.W., Hildner, E. & Van Hollebeke, M.A.I. Prompt solar proton events and coronal mass ejections. Sol Phys 57, 429–443 (1978). https://doi.org/10.1007/BF00160116
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DOI: https://doi.org/10.1007/BF00160116