References

ANGEO

Annales Geophysicae

ANGEO

Ann. Geophys.

1432-0576

Copernicus Publications

Göttingen, Germany

10.5194/angeo-32-239-2014

Evidence of transient reconnection in the outflow jet of primary reconnection site

Wang

https://orcid.org/0000-0002-9511-7660

¹ Nakamura

² Zhang

² Du

¹ Baumjohann

https://orcid.org/0000-0001-6271-0110

² Lu

³ Fazakerley

A. N.

https://orcid.org/0000-0003-3589-3913

⁴

Key Laboratory of Ionospheric Environment, Institute of Geology and Geophysics, Chinese Academy of Sciences, Beijing, China

Space Research Institute, Austrian Academy of Sciences, Graz, Austria

Department of Geophysics and Planetary Science, University of Science and Technology of China, Hefei, China

Mullard Space Science Laboratory, Surrey, UK

14 03 2014

32 3 239 248

2014

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The full text article is available as a PDF file from https://angeo.copernicus.org/articles/32/239/2014/angeo-32-239-2014.pdf

The precise mechanism for the formation of magnetic islands in the magnetotail and the subsequent evolution are still controversial. New investigations have provided the first observational evidence of secondary reconnection in the earthward outflow jet of primary reconnection in the magnetotail. The secondary reconnection takes place 38 c/ωpi earthward from the primary reconnection site and results in the birth of a magnetic island observed. This generation mechanism is different from the widely used model of multiple reconnection X-lines. The duration of the secondary reconnection was approximate one ion gyration period (5 s). The observations resemble recent numerical simulations where magnetic reconnection could spontaneously and transiently happen in the outflow jet, called secondary reconnection, which was used to explain the formation of the dipolarization fronts. Coincidentally, another magnetic island moving earthward passed through three satellites successively. By this chance we find the magnetic island was accelerated towards Earth with an acceleration of about 9 km s−2 at −19 RE in the magnetotail.

References 1

Balogh, A., Carr, C. M., Acuña, M. H., Dunlop, M. W., Beek, T. J., Brown, P., Fornacon, K.-H., Georgescu, E., Glassmeier, K.-H., Harris, J., Musmann, G., Oddy, T., and Schwingenschuh, K.: The Cluster Magnetic Field Investigation: overview of in-flight performance and initial results, Ann. Geophys., 19, 1207–1217, <a href="http://dx.doi.org/10.5194/angeo-19-1207-2001">https://doi.org/10.5194/angeo-19-1207-2001</a>, 2001.

Baumjohann, W., Paschmann, G., and Luhr, H.: Characteristics of high speed ion flows in the plasma sheet, J. Geophys. Res., 95, 3801, <a href="http://dx.doi.org/10.1029/JA095iA04p03801">https://doi.org/10.1029/JA095iA04p03801</a>, 1990.

Beyene, S., Owen, C. J., Walsh, A. P., Forsyth, C., Fazakerley, A. N., Kiehas, S., Dandouras, I., and Lucek, E.: Cluster observations of a transient signature in the magnetotail: implications for the mode of reconnection, Ann. Geophys., 29, 2131–2146, <a href="http://dx.doi.org/10.5194/angeo-29-2131-2011">https://doi.org/10.5194/angeo-29-2131-2011</a>, 2011.

Birn, J., Hesse, M., and Schindler, K.: Filamentary structure of a three-dimensional plasmoid, J. Geophys. Res., 94, 241–251, 1989.

Chanteur, G. and Harvey, C.: Spatial interpolation for four spacecraft: Application to magnetic gradients, in: Analysis Methods for Multi-Spacecraft Data, edietd by: Paschmann, G. and Daly, P., 349–369, ESA, Noordwijk, 1998.

Chen, L. J., Bhattacharjee, A., Puhl-Quinn, P. A., Yang, H., Bessho, N., Imada, S., Muehlbachler, S., Daly, P. W., Lefebvre, B., Khotyaintsev, Y., Vaivads, A., Fazakerley, A., and Georgescu, E.: Observation of energetic electrons within magnetic islands, Nat. Phys, 4, 19–23, <a href="http://dx.doi.org/10.1038/Nphys777">https://doi.org/10.1038/Nphys777</a>, 2008.

Daughton, W., Scudder, J., and Karimabadi, H.: Fully kinetic simulations of undriven magnetic reconnection with open boundary conditions, Phys. Plasmas, 13, 072101, <a href="http://dx.doi.org/10.1063/1.2218817">https://doi.org/10.1063/1.2218817</a>, 2006.

Daughton, W., Roytershteyn, V., Karimabadi, H., Yin, L., Albright, B. J., Bergen, B., and Bowers, K. J.: Role of electron physics in the development of turbulent magnetic reconnection in collisionless plasmas, Nat. Phys., 7, 539–542, <a href="http://dx.doi.org/10.1038/nphys1965">https://doi.org/10.1038/nphys1965</a>, 2011.

Deng, X. H., Matsumoto, H., Kojima, H., Mukai, T., Anderson, R. R., Baumjohann, W., and Nakamura, R.: Geotail encounter with reconnection diffusion region in the Earth's magnetotail: Evidence of multiple X lines collisionless reconnection?, J. Geophys. Res., 109, A05206, <a href="http://dx.doi.org/10.1029/2003JA010031">https://doi.org/10.1029/2003JA010031</a>, 2004.

Divin, A. V., Sitnov, M. I., Swisdak, M., and Drake, J. F.: Reconnection onset in the magnetotail: Particle simulations with open boundary conditions, Geophys. Res. Lett., 34, L09109, <a href="http://dx.doi.org/10.1029/2007GL029292">https://doi.org/10.1029/2007GL029292</a>, 2007.

Eastwood, J. P., Phan, T. D., Mozer, F. S., Shay, M. A., Fujimoto, M., Retino, A., Hesse, M., Balogh, A., Lucek, E. A., and Dandouras, I.: Multi-point observations of the Hall electromagnetic field and secondary island formation during magnetic reconnection, J. Geophys. Res., 112, A06235, <a href="http://dx.doi.org/10.1029/2006JA012158">https://doi.org/10.1029/2006JA012158</a>, 2007.

Fu, H. S., Khotyaintsev, Y. V., André, M., and Vaivads, A.: Fermi and betatron acceleration of suprathermal electrons behind dipolarization fronts, Geophys. Res. Lett., 38, L16104, <a href="http://dx.doi.org/10.1029/2011GL048528">https://doi.org/10.1029/2011GL048528</a>, 2011.

Ge, Y. S., Zhou, X.-Z., Liang, J., Raeder, J., Gilson, M. L., Donovan, E., Angelopoulos, V., and Runov, A.: Dipolarization fronts and associated auroral activities: 1. Conjugate observations and perspectives from global MHD simulations, J. Geophys. Res., 117, A10226, <a href="http://dx.doi.org/10.1029/2012JA017676">https://doi.org/10.1029/2012JA017676</a>, 2012.

Gustafsson, G., André, M., Carozzi, T., Eriksson, A. I., Fälthammar, C.-G., Grard, R., Holmgren, G., Holtet, J. A., Ivchenko, N., Karlsson, T., Khotyaintsev, Y., Klimov, S., Laakso, H., Lindqvist, P.-A., Lybekk, B., Marklund, G., Mozer, F., Mursula, K., Pedersen, A., Popielawska, B., Savin, S., Stasiewicz, K., Tanskanen, P., Vaivads, A., and Wahlund, J.-E.: First results of electric field and density observations by Cluster EFW based on initial months of operation, Ann. Geophys., 19, 1219–1240, <a href="http://dx.doi.org/10.5194/angeo-19-1219-2001">https://doi.org/10.5194/angeo-19-1219-2001</a>, 2001.

Henderson, P. D., Owen, C. J., Alexeev, I. V., Slavin, J., Fazakerley, A. N., Lucek, E., and Rème, H.: Cluster observations of flux rope structures in the near-tail, Ann. Geophys., 24, 651–666, <a href="http://dx.doi.org/10.5194/angeo-24-651-2006">https://doi.org/10.5194/angeo-24-651-2006</a>, 2006.

Hones, E. W.: Substorm processes in the magnetotail: Comments on "On hot tenuous plasmas, fireballs, and boundary layers in the Earth's magnetotail" by Frank et al., J. Geophys. Res., 82, 5633–5643, 1977.

Huang, C., Lu, Q., Yang, Z., Wu, M., Dong, Q., and Wang, S.: The evolution of electron current sheet and formation of secondary islands in guide field reconnection, Nonlin. Processes Geophys., 18, 727–733, <a href="http://dx.doi.org/10.5194/npg-18-727-2011">https://doi.org/10.5194/npg-18-727-2011</a>, 2011.

Huang, C., Lu, Q. M., Zhang, H., Wu, M. Y., Dong, Q. L., Lu, S., and Wang, S.: Kinetic simulations of the structures of magnetic island in multiple X line guide field reconnection, Phys. Plasmas, 19, 042111, <a href="http://dx.doi.org/10.1063/1.4704799">https://doi.org/10.1063/1.4704799</a>, 2012.

Ieda, A., Machida, S., Mukai, T., Saito, Y., Yamamoto, T., Nishida, A., Terasawa, T., and Kokubun, S.: Statistical analysis of the plasmoid evolution with Geotail observations, J. Geophys. Res., 103, 4453–4466, 1998.

Imada, S., Nakamura, R., Daly, P. W., Hoshino, M., Baumjohann, W., Muhlbachler, S., Balogh, A., and Rème, H.: Energetic electron acceleration in the downstream reconnection outflow region, J. Geophys. Res., 112, A03202, <a href="http://dx.doi.org/10.1029/2006JA011847">https://doi.org/10.1029/2006JA011847</a>, 2007.

Imber, S. M., Slavin, J. A., Auster, H. U., and Angelopoulos, V.: A THEMIS survey of flux ropes and traveling compression regions: Location of the near-Earth reconnection site during solar minimum, J. Geophys. Res., 116, A02201, <a href="http://dx.doi.org/10.1029/2010JA016026">https://doi.org/10.1029/2010JA016026</a>, 2011.

Johnstone, A. D., Alsop, C., Burge, S., Carter, P. J., Coates, A. J., Coker, A. J., Fazakerley, A. N., Grande, M., Gowen, R. A., Gurgiolo, C., Hancock, B. K., Narheim, B., Preece, A., Sheather, P. H., Winningham, J. D., and Woodliffe, R. D.: Peace: A plasma electron and current experiment, Space Sci. Rev., 79, 351–398, <a href="http://dx.doi.org/10.1023/A:1004938001388">https://doi.org/10.1023/A:1004938001388</a>, 1997.

Kiehas, S. A., Angelopoulos, V., Runov, A., Moldwin, M. B., and Möstl, C.: On the formation of tilted flux ropes in the Earth's magnetotail observed with ARTEMIS, J. Geophys. Res., 117, A05231, <a href="http://dx.doi.org/10.1029/2011JA017377">https://doi.org/10.1029/2011JA017377</a>, 2012.

Kiehas, S. A., Angelopoulos, V., Runov, A., and Li, S.-S.: On the azimuthal size of flux ropes near lunar orbit, J. Geophys. Res., 118, 4415–4424, <a href="http://dx.doi.org/10.1002/jgra.50425">https://doi.org/10.1002/jgra.50425</a>, 2013.

Lee, L. C. and Fu, Z. F.: A theory of magnetic flux transfer at the Earth's magnetopause, Geophys. Res. Lett., 12, 105–108, <a href="http://dx.doi.org/10.1029/GL012i002p00105">https://doi.org/10.1029/GL012i002p00105</a>, 1985.

Lepping, R. P., Jones, J. A., and Burlaga, L. F.: Magnetic field structure of interplanetary magnetic clouds at 1 AU, J. Geophys. Res., 95, 11957–11965, <a href="http://dx.doi.org/10.1029/JA095iA08p11957">https://doi.org/10.1029/JA095iA08p11957</a>, 1990.

Lui, A. T. Y., Dunlop, M. W., Rème, H., Kistler, L. M., Gustafsson, G., and Zong, Q.-G.: Internal structure of a magnetic flux rope from Cluster observations, Geophys. Res. Lett., 34, L07102, <a href="http://dx.doi.org/10.1029/2007GL029263">https://doi.org/10.1029/2007GL029263</a>, 2007.

Nakamura, R., Baumjohann, W., Klecker, B., Bogdanova, Y., Balogh, A., Rème, H., Bosqued, J. M., Dandouras, I., Sauvaud, J. A., Glassmeier, K. H., Kistler, L., Mouikis, C., Zhang, T. L., Eichelberger, H., and Runov, A.: Motion of the dipolarization front during a flow burst event observed by Cluster, Geophys Res. Lett., 29, 1942, <a href="http://dx.doi.org/10.1029/2002gl015763">https://doi.org/10.1029/2002gl015763</a>, 2002.

Nakamura, R., Baumjohann, W., Asano, Y., Runov, A., Balogh, A., Owen, C. J., Fazakerley, A. N., Fujimoto, M., Klecker, B., and Rème, H.: Dynamics of thin current sheets associated with magnetotail reconnection, J. Geophys. Res., 111, A11206, <a href="http://dx.doi.org/10.1029/2006ja011706">https://doi.org/10.1029/2006ja011706</a>, 2006.

Nakamura, R., Baumjohann, W., Fujimoto, M., Asano, Y., Runov, A., Owen, C. J., Fazakerley, A. N., Klecker, B., Rème, H., Lucek, E. A., Andre, M., and Khotyaintsev, Y.: Cluster observations of an ion-scale current sheet in the magnetotail under the presence of a guide field, J. Geophys. Res., 113, A07s16, <a href="http://dx.doi.org/10.1029/2007ja012760">https://doi.org/10.1029/2007ja012760</a>, 2008.

Ohtani, S., Shay, M. A., and Mukai, T.: Temporal structure of the fast convective flow in the plasma sheet: Comparison between observations and two-fluid simulations, J. Geophys. Res., 109, A03210, <a href="http://dx.doi.org/10.1029/2003JA010002">https://doi.org/10.1029/2003JA010002</a>, 2004.

Rème, H., Aoustin, C., Bosqued, J. M., Dandouras, I., Lavraud, B., Sauvaud, J. A., Barthe, A., Bouyssou, J., Camus, Th., Coeur-Joly, O., Cros, A., Cuvilo, J., Ducay, F., Garbarowitz, Y., Medale, J. L., Penou, E., Perrier, H., Romefort, D., Rouzaud, J., Vallat, C., Alcaydé, D., Jacquey, C., Mazelle, C., d'Uston, C., Möbius, E., Kistler, L. M., Crocker, K., Granoff, M., Mouikis, C., Popecki, M., Vosbury, M., Klecker, B., Hovestadt, D., Kucharek, H., Kuenneth, E., Paschmann, G., Scholer, M., Sckopke, N., Seidenschwang, E., Carlson, C. W., Curtis, D. W., Ingraham, C., Lin, R. P., McFadden, J. P., Parks, G. K., Phan, T., Formisano, V., Amata, E., Bavassano-Cattaneo, M. B., Baldetti, P., Bruno, R., Chionchio, G., Di Lellis, A., Marcucci, M. F., Pallocchia, G., Korth, A., Daly, P. W., Graeve, B., Rosenbauer, H., Vasyliunas, V., McCarthy, M., Wilber, M., Eliasson, L., Lundin, R., Olsen, S., Shelley, E. G., Fuselier, S., Ghielmetti, A. G., Lennartsson, W., Escoubet, C. P., Balsiger, H., Friedel, R., Cao, J.-B., Kovrazhkin, R. A., Papamastorakis, I., Pellat, R., Scudder, J., and Sonnerup, B.: First multispacecraft ion measurements in and near the Earth's magnetosphere with the identical Cluster ion spectrometry (CIS) experiment, Ann. Geophys., 19, 1303–1354, <a href="http://dx.doi.org/10.5194/angeo-19-1303-2001">https://doi.org/10.5194/angeo-19-1303-2001</a>, 2001.

Retinò, A., Nakamura, R., Vaivads, A., Khotyaintsev, Y., Hayakawa, T., Tanaka, K., Kasahara, S., Fujimoto, M., Shinohara, I., Eastwood, J. P., Andre, M., Baumjohann, W., Daly, P. W., Kronberg, E. A., and Cornilleau-Wehrlin, N.: Cluster observations of energetic electrons and electromagnetic fields within a reconnecting thin current sheet in the Earth's magnetotail, J. Geophys. Res., 113, A12215 <a href="http://dx.doi.org/10.1029/2008ja013511">https://doi.org/10.1029/2008ja013511</a>, 2008.

Runov, A., Voronkov, I., Asano, Y., Baumjohann, W., Fujimoto, M., Nakamura, R., Takada, T., Volwerk, M., Vörös, Z., Meurant, M., Fazakerley, A., Rème, H., and Balogh, A.: Structure of the near-Earth plasma sheet during tailward flows, Ann. Geophys., 26, 709–724, <a href="http://dx.doi.org/10.5194/angeo-26-709-2008">https://doi.org/10.5194/angeo-26-709-2008</a>, 2008.

Runov, A., Angelopoulos, V., Sitnov, M. I., Sergeev, V. A., Bonnell, J., McFadden, J. P., Larson, D., Glassmeier, K.-H., and Auster, U.: THEMIS observations of an earthward-propagating dipolarization front, Geophys. Res. Lett., 36, L14106, <a href="http://dx.doi.org/10.1029/2009GL038980">https://doi.org/10.1029/2009GL038980</a>, 2009.

Runov, A., Angelopoulos, V., Zhou, X.-Z., Zhang, X.-J., Li, S., Plaschke, F., and Bonnell, J.: A THEMIS multicase study of dipolarization fronts in the magnetotail plasma sheet, J. Geophys. Res., 116, A05216, <a href="http://dx.doi.org/10.1029/2010JA016316">https://doi.org/10.1029/2010JA016316</a>, 2011a.

Runov, A., Angelopoulos, V., Sitnov, M., Sergeev, V. A., Nakamura, R., Nishimura, Y., Frey, H. U., McFadden, J. P., Larson, D., Bonnell, J., Glassmeier, K. H., Auster, U., Connors, M., Russell, C. T., and Singer, H. J.: Dipolarization fronts in the magnetotail plasma sheet, Planet Space Sci., 59, 517–525, <a href="http://dx.doi.org/10.1016/j.pss.2010.06.006">https://doi.org/10.1016/j.pss.2010.06.006</a>, 2011b.

Schindler, K.: A theory of the substorm mechanism, J. Geophys. Res., 79, 2803–2810, <a href="http://dx.doi.org/10.1029/JA079i019p02803">https://doi.org/10.1029/JA079i019p02803</a>, 1974.

Schmid, D., Volwerk, M., Nakamura, R., Baumjohann, W., and Heyn, M.: A statistical and event study of magnetotail dipolarization fronts, Ann. Geophys., 29, 1537–1547, <a href="http://dx.doi.org/10.5194/angeo-29-1537-2011">https://doi.org/10.5194/angeo-29-1537-2011</a>, 2011.

Sergeev, V., Elphic, R. C., Mozer, F. S., Saint-Marc, A., and Sauvaud, J.-A.: A two-satellite study of nightside flux transfer events in the plasma sheet, Planet. Space Sci., 40, 1551–1572, 1992.

Sharma, A. S., Nakamura, R., Runov, A., Grigorenko, E. E., Hasegawa, H., Hoshino, M., Louarn, P., Owen, C. J., Petrukovich, A., Sauvaud, J.-A., Semenov, V. S., Sergeev, V. A., Slavin, J. A., Sonnerup, B. U. Ö., Zelenyi, L. M., Fruit, G., Haaland, S., Malova, H., and Snekvik, K.: Transient and localized processes in the magnetotail: a review, Ann. Geophys., 26, 955–1006, <a href="http://dx.doi.org/10.5194/angeo-26-955-2008">https://doi.org/10.5194/angeo-26-955-2008</a>, 2008.

Sitnov, M. I., Swisdak, M., and Divin, A. V.: Dipolarization fronts as a signature of transient reconnection in the magnetotail, J. Geophys. Res., 114, A04202, <a href="http://dx.doi.org/10.1029/2008JA013980">https://doi.org/10.1029/2008JA013980</a>, 2009.

Slavin, J. A., Smith, E. J., Tsurutani, B. T., Sibeck, D. G., Singer, H. J., Baker, D. N., Gosling, J. T., Hones, E. W., and Scarf, F. L.: Substorm associated traveling compression regions in the distant tail: Isee3 Geotail observations, Geophys. Res. Lett., 11, 657–660, <a href="http://dx.doi.org/10.1029/GL011i007p00657">https://doi.org/10.1029/GL011i007p00657</a>, 1984.

Slavin, J. A., Fairfield, D. H., Kuznetsova, M. M., Owen, C. J., Lepping, R. P., Taguchi, S., Mukai, T., Saito, Y., Yamamoto, T., Kokubun, S., Lui, A. T. Y., and Reeves, G. D.: ISTP observations of plasmoid ejection: IMP 8 and Geotail, J. Geophys. Res., 103, 119–134, 1998.

Slavin, J. A., Lepping, R. P., Gjerloev, J., Fairfield, D. H., Hesse, M., Owen, C. J., Moldwin, M. B., Nagai, T., Ieda, A., and Mukai, T.: Geotail observations of magnetic flux ropes in the plasma sheet, J. Geophys. Res., 108, 1015, <a href="http://dx.doi.org/10.1029/2002JA009557">https://doi.org/10.1029/2002JA009557</a>, 2003.

Sonnerup, B. and Schneible, M.: Minimum and maximum variance analysis, in: Analysis Methods for Multi-Spacecraft Data, edited by: Paschmann, G. and Daly, P., 185–220, ESA, Noordwijk, 1998.

Sormakov, D. A. and Sergeev, V. A.: Topology of magnetic flux ropes in the magnetospheric plasma sheet as measured by the Geotail spacecraft, Cosmic Res., 46, 387–391, 2008.

Steed, K., Owen, C. J., Harra, L. K., Green, L. M., Dasso, S., Walsh, A. P., Démoulin, P., and van Driel-Gesztelyi, L.: Locating the solar source of 13 April 2006 magnetic cloud, Ann. Geophys., 26, 3159–3168, <a href="http://dx.doi.org/10.5194/angeo-26-3159-2008">https://doi.org/10.5194/angeo-26-3159-2008</a>, 2008.

Teh, W. L., Eriksson, S. Sonnerup, B. U. Ö., Ergun, R., Angelopoulos, V., Glassmeier, K. H., McFadden, J. P., and Bonnell, J. W.: THEMIS observations of a secondary magnetic island within the Hall electromagnetic field region at the magnetopause, Geophys. Res. Lett., 37, L21102, <a href="http://dx.doi.org/10.1029/2010GL045056">https://doi.org/10.1029/2010GL045056</a>, 2010.

Wang, R. S., Lu, Q. M., Guo, J., and Wang, S.: Spatial distribution of energetic electrons during magnetic reconnection, Chin. Phys. Lett., 25, 3083–3085, <a href="http://dx.doi.org/10.1088/0256-307X/25/8/093">https://doi.org/10.1088/0256-307X/25/8/093</a>, 2008.

Wang, R. S., Lu, Q., Du, A., and Wang, S.: In situ observations of a secondary magnetic island in an ion diffusion region and associated energetic electrons, Phys. Rev. Lett., 104, 175003, <a href="http://dx.doi.org/10.1103/PhysRevLett.104.175003">https://doi.org/10.1103/PhysRevLett.104.175003</a>, 2010a.

Wang, R. S., Lu, Q., Li, X., Huang, C., and Wang, S.: Observations of energetic electrons up to 200 keV associated with a secondary island near the center of an ion diffusion region: A Cluster case study, J. Geophys. Res., 115, A11201, <a href="http://dx.doi.org/10.1029/2010JA015473">https://doi.org/10.1029/2010JA015473</a>, 2010b.

Wang, R. S., Nakamura, R., Lu, Q. M., Du, A. M., Zhang, T. L., Baumjohann, W., Khotyaintsev, Y. V., Volwerk, M., Andre, M., Fujimoto, M., Nakamura, T. K. M., Fazakerley, A. N., Du, J., Teh, W., Panov, E. V., Zieger, B., Pan, Y. X., and Lu, S.: Asymmetry in the current sheet and secondary magnetic flux ropes during guide field magnetic reconnection, J. Geophys. Res., 117, A07223, <a href="http://dx.doi.org/10.1029/2011ja017384">https://doi.org/10.1029/2011ja017384</a>, 2012.

Wang, Yuming, Caixia Chen, Bin Gui, Chenglong Shen, Pinzhong Ye, and Wang, S.: Statistical Study of Coronal Mass Ejection Source Locations: Understanding CMEs Viewed in Coronagraphs, J. Geophys. Res., 116, A04104, <a href="http://dx.doi.org/10.1029/2010JA016101">https://doi.org/10.1029/2010JA016101</a>, 2011.

Wilken, B., Daly, P. W., Mall, U., Aarsnes, K., Baker, D. N., Belian, R. D., Blake, J. B., Borg, H., Büchner, J., Carter, M., Fennell, J. F., Friedel, R., Fritz, T. A., Gliem, F., Grande, M., Kecskemety, K., Kettmann, G., Korth, A., Livi, S., McKenna-Lawlor, S., Mursula, K., Nikutowski, B., Perry, C. H., Pu, Z. Y., Roeder, J., Reeves, G. D., Sarris, E. T., Sandahl, I., Søraas, F., Woch, J., and Zong, Q.-G.: First results from the RAPID imaging energetic particle spectrometer on board Cluster, Ann. Geophys., 19, 1355–1366, <a href="http://dx.doi.org/10.5194/angeo-19-1355-2001">https://doi.org/10.5194/angeo-19-1355-2001</a>, 2001.

Wu, M. Y., Lu, Q. M., Volwerk, M., Voros, Z., Zhang, T. L., Shan, L. C., and Huang, C.: A statistical study of electron acceleration behind the dipolarization fronts in the magnetotail, J. Geophys. Res., 118, 1–7, <a href="http://dx.doi.org/10.1002/jgra.50456">https://doi.org/10.1002/jgra.50456</a>, 2013.

Xiao C. J., Pu, Z. Y., Ma, Z. W., Fu, S. Y., Huang, Z. Y., and Zong, Q. G.: Inferring of Flux Rope Axis with Cluster Measurements at the Magnetopause, J. Geophys. Res., 109, A11218, <a href="http://dx.doi.org/10.1029/2004JA010594">https://doi.org/10.1029/2004JA010594</a>, 2004.

Zong, Q.-G., Fu, S. Y., Baker, D. N., Goldstein, M. L., Song, P., Slavin, J. A., Fritz, T. A., Cao, J. B., Amm, O., Frey, H., Korth, A., Daly, P. W., Reme, H., and Pedersen, A., Earthward flowing plasmoid: Structure and its related ionospheric signature, J. Geophys. Res., 112, A07203, <a href="http://dx.doi.org/10.1029/2006JA012112">https://doi.org/10.1029/2006JA012112</a>, 2007.