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Observation of Solar Energetic Particle (Sep) Events Associated with Narrow Cmes : Volume 8, Issue 1 (10/01/2012)

By Al-sawad, A.

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Book Id: WPLBN0004002834
Format Type: PDF Article :
File Size: Pages 5
Reproduction Date: 2015

Title: Observation of Solar Energetic Particle (Sep) Events Associated with Narrow Cmes : Volume 8, Issue 1 (10/01/2012)  
Author: Al-sawad, A.
Volume: Vol. 8, Issue 1
Language: English
Subject: Science, Astrophysics, Space
Collections: Periodicals: Journal and Magazine Collection, Copernicus GmbH
Publication Date:
Publisher: Copernicus Gmbh, Göttingen, Germany
Member Page: Copernicus Publications


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Al-Sawad, A., Al-Ramdhan, W., Valtonen, E., & Allawi, H. (2012). Observation of Solar Energetic Particle (Sep) Events Associated with Narrow Cmes : Volume 8, Issue 1 (10/01/2012). Retrieved from

Description: Space Research Laboratory, Department of Physics and Astronomy, University of Turku, Fin 20014 Finland. We report here on two proton energetic particle events observed by the Energetic and Relativistic Nuclei and Electron (ERNE) instrument on the Solar and Heliospherical Observatory (SOHO). Both events were impulsive (SEP) events with intensities of >10−3 cm−2 sr−1 s−1 MeV−1 at an energy range of tens of MeVs and were associated with CMEs of angular widths <60° and linear speed of >800 kms−1. In one of the events there was no associated solar flare, which indicates that the first injected protons were completely due to the associated CME and in the second event the associated solar flare was an impulsive M1.1 class flare and the calculated first injection time for protons of energies ~36 MeV and propagating along 1.2 AU path length, was close to the liftoff time of the CME. These observations are inconsistent with the view presented in some studies that narrow fast CME are not associated with SEP events.

Observation of solar energetic particle (SEP) events associated with narrow CMEs

Cane, H. V.: The structure and evolution of interplanetary shocks and the relevance for particle acceleration, Nucl. Phys. B., 39A, 35–44, 1995.; Cane, H. V.: Near-Relativistic Solar Electrons and Type III Radio Bursts, Astrophys. J., 598, 1403–1408, 2003.; Cane, H. V., Richardson, I. G., and St Cyr, O. C.: The interplanetary events of January - May, 1997 as inferred from energetic particle data, and their relationship with solar events, Geophys. Res. Lett., 25, 2517–2520, 1998.; Cliver, E. W.: Solar flare gamma-ray emission and energetic particles in space, in: High Energy Solar Physics, edited by: Ramaty, R., Mandzhavidze, N., and, Hua, X.-M., AIP Conf. Proc. 374, AIP press, Woodbury, NY, 45, 1996.; Debrunner, H., Flückiger, E. O., and Lockwood, J. A.: Signature of the solar cosmic-ray event on 3 June 1982, Astrophys. J. suppl. ser., 73, 259, 1990.; Klein, K. L. and Trottet, G.: The origin of solar energetic particle events: coronal acceleration versus shock wave acceleration, Space Sci. Rev., 95, 215–225, 2001.; Debrunner, H., Lockwood, J. A., Barat, C., et al.: Energetic neutrons, protons, and gamma rays during the 1990 May 24 solar cosmic-ray event, Astrophys. J., 479, 997, 1997.; Dryer, M.: Interplanetary studies: propagation of disturbances between the Sun and the magnetosphere, Space Sci. Rev., 67, 363–419, 1994.; Fox N. J., Peredo, M., and Thompson, B. J.:Cradle to grave tracking of the 6–11 January 1997 Sun-Earth connection event, Geophys. Res. Lett., 25, 2461, 1998.; Gosling, J. T.: The solar flare myth, J. Geophys. Res., 98, 18937–18950, 1993.; Haggerty, D. K. and Roelof, E. C.: Impulsive near-relativistic solar electron events: delayed injection with respect to solar electromagnetic emission, Astrophys. J., 579, 841, 2002.; Huttunen-Heikinmaa, K., Valtonen, E., and Laitinen, T.: Proton and helium release times in SEP events observed with SOHO/ERNE, Astron. Astrophys., 442, 673, 2005.; Kahler, S.: Solar flares and coronal mass ejections, Astron. Astrophys., 30, 113–141, 1992.; Kahler, S.: Injection profiles of solar energetic particles as functions of coronal mass ejection heights, Astrophys. J., 428, 837, 1994.; Kahler, S. and Reames, D. V.: Solar Energetic particle production by coronal mass ejection-driven shocks in solar fast-wind regions, Astrophys. J., 584, 1063–1070, 2003.; Kahler, S. W., Reames, D. V., and Sheeley, N. R. Jr.: Coronal mass ejections associated with impulsive solar energetic particle events, Astrophys. J., 562, 558–565, 2001.; Kallenrode, M-B.: A statistical survey of 5-MeV proton events at transient interplanetary shocks, J. Geophys. Res., 101, 24393–24409, 1996.; Kartavykh, Y. Y., Dröge, W., Klecker, B., Mason, G. M., Möbius, E., Popecki, M., and Krucker, S.: Evidence of a two-temperature source region in the 3He-rich solar energetic particle event of 1 May 2000, Astrophys. J., 671, 947–954, 2007.; Klein, K.-L. and Posner, A.: A The onset of solar energetic particle events: prompt release of deka-MeV protons and associated coronal activity, Astron. Astrophys., 438, 1029–1042, 2005.; Kocharov, L., Torsti, J., Laitinen, L., and Teittinen, M.: Post-impulsive-phase acceleration in a wide range of solar longitudes, Solar Physics, 190, 295–307, 1999.; Krucker, S. and Lin, R. P.: Two classes of solar proton events derived from onset time analysis, Astrophys. J. Lett., 542, L61–L64, 2000.; Laitinen, T., Klein, K.-L., Kocharov, L., Torsti, J., Trottet, G., Bothmer, V., Kaiser, M. L., Rank, G., and Reiner, M. J.: Solar energetic particle event and ra


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