Counterstreaming solar wind halo electron events on open field lines

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Counterstreaming solar wind halo electron events have been identified as a common 1 AU signature of coronal mass ejection events, and have generally been interpreted as indicative of closed magnetic field topologies, i.e., magnetic loops or flux ropes rooted at both ends in the Sun, or detached plasmoids. In this paper we examine the possibility that these events may instead occur preferentially on open field lines, and that counterstreaming results from reflection or injection behind interplanetary shocks or from mirroring from regions of compressed magnetic field farther out in the heliosphere. We conclude the neither of these suggested sources of ... continued below

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Pages: (9 p)

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Gosling, J.T.; McComas, D.J. & Phillips, J.L. January 1, 1991.

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Counterstreaming solar wind halo electron events have been identified as a common 1 AU signature of coronal mass ejection events, and have generally been interpreted as indicative of closed magnetic field topologies, i.e., magnetic loops or flux ropes rooted at both ends in the Sun, or detached plasmoids. In this paper we examine the possibility that these events may instead occur preferentially on open field lines, and that counterstreaming results from reflection or injection behind interplanetary shocks or from mirroring from regions of compressed magnetic field farther out in the heliosphere. We conclude the neither of these suggested sources of counterstreaming electron beams is viable and that the best interpretation of observed counterstreaming electron events in the solar wind remains that of passage of closed field structures. 4 refs., 4 figs.

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Pages: (9 p)

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OSTI; NTIS; GPO Dep.

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  • 7. solar wind conference, Goslar (Germany), 16-21 Sep 1991

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  • Other: DE92002544
  • Report No.: LA-UR-91-3378
  • Report No.: CONF-910915--3
  • Grant Number: W-7405-ENG-36
  • Office of Scientific & Technical Information Report Number: 5008724
  • Archival Resource Key: ark:/67531/metadc1053685

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  • January 1, 1991

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  • Jan. 22, 2018, 7:23 a.m.

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  • Feb. 1, 2018, 7:01 p.m.

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Gosling, J.T.; McComas, D.J. & Phillips, J.L. Counterstreaming solar wind halo electron events on open field lines, article, January 1, 1991; New Mexico. (digital.library.unt.edu/ark:/67531/metadc1053685/: accessed November 21, 2018), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.