Cluster observations of hot flow anomalies with large flow deflections: 1. Velocity deflections
作者： Shan Wang , Qiugang Zong , Hui Zhang
DOI: 10.1002/JGRA.50100
关键词:
摘要: [1] Case and statistical studies have been performed to investigate hot flow anomalies (HFAs) with large deflections using data from the Cluster-C1 spacecraft 2003 2009. We selected 87 events Vy or Vz in GSE coordinates larger than 200 km s−1. Observations of these HFAs indicate a “location-dependent deflection”: deflect positive value when event is located Y Z side relative subsolar point negative it point. The amplitude deflection increases increasing distance direction. decrease Vx at center location closer Sun-Earth line. location-dependent might be due near-specular reflection ions Earth's bow shock. studied this paper are close shock ranging 0.03 3.51 RE, which cause reflected remain as coherent beam.
core.ac.uk
harvard.edu
sci-hub.se 参考文章(27)
I. Dandouras, A. Barthe, E. Penou, S. Brunato, H. Rème, L. M. Kistler, M. B. Bavassano-Cattaneo, A. Blagau, Cluster Ion Spectrometry (CIS) Data in the Cluster Active Archive (CAA) Astrophysics and Space Science Proceedings. ,vol. 11, pp. 51- 72 ,(2010) , 10.1007/978-90-481-3499-1_3
J. T. Gosling, A. E. Robson, Ion reflection, gyration, and dissipation at supercritical shocks Collisionless Shocks in the Heliosphere: Reviews of Current Research. ,vol. 35, pp. 141- 152 ,(1985) , 10.1029/GM035P0141
Marit Øieroset, David L. Mitchell, Tai D. Phan, Robert P. Lin, Mario H. Acuña, Hot diamagnetic cavities upstream of the Martian bow shock Geophysical Research Letters. ,vol. 28, pp. 887- 890 ,(2001) , 10.1029/2000GL012289
E. A. Lucek, Cluster observations of hot flow anomalies Journal of Geophysical Research. ,vol. 109, ,(2004) , 10.1029/2003JA010016
Y. Lin, Global hybrid simulation of hot flow anomalies near the bow shock and in the magnetosheath Planetary and Space Science. ,vol. 50, pp. 577- 591 ,(2002) , 10.1016/S0032-0633(02)00037-5
S.J Schwartz, Hot flow anomalies near the Earth's bow shock Advances in Space Research. ,vol. 15, pp. 107- 116 ,(1995) , 10.1016/0273-1177(94)00092-F
M. H. Farris, S. M. Petrinec, C. T. Russell, The thickness of the magnetosheath: Constraints on the polytropic index Geophysical Research Letters. ,vol. 18, pp. 1821- 1824 ,(1991) , 10.1029/91GL02090
M. F. Thomsen, V. A. Thomas, D. Winske, J. T. Gosling, M. H. Farris, C. T. Russell, Observational test of hot flow anomaly formation by the interaction of a magnetic discontinuity with the bow shock Journal of Geophysical Research. ,vol. 98, pp. 15319- 15330 ,(1993) , 10.1029/93JA00792
V. A. Thomas, Stephen H. Brecht, Evolution of diamagnetic cavities in the solar wind Journal of Geophysical Research. ,vol. 93, pp. 11341- 11353 ,(1988) , 10.1029/JA093IA10P11341
C. Jacquey, C. Mazelle, C. d’Uston, E. Möbius, L. M. Kistler, K. Crocker, M. Granoff, C. Mouikis, M. Popecki, M. Vosbury, B. Klecker, D. Hovestadt, H. Kucharek, E. Kuenneth, G. Paschmann, M. Scholer, N. Sckopke, E. Seidenschwang, C. W. Carlson, D. W. Curtis, C. Ingraham, R. P. Lin, J. P. McFadden, G. K. Parks, T. Phan, V. Formisano, E. Amata, M. B. Bavassano-Cattaneo, P. Baldetti, R. Bruno, G. Chionchio, A. Di Lellis, M. F. Marcucci, G. Pallocchia, A. Korth, P. W. Daly, B. Graeve, H. Rosenbauer, V. Vasyliunas, M. McCarthy, M. Wilber, L. Eliasson, R. Lundin, S. Olsen, E. G. Shelley, S. Fuselier, A. G. Ghielmetti, W. Lennartsson, C. P. Escoubet, H. Balsiger, R. Friedel, J.-B. Cao, R. A. Kovrazhkin, I. Papamastorakis, R. Pellat, J. Scudder, B. Sonnerup, H. Rème, C. Aoustin, J. M. Bosqued, I. Dandouras, B. Lavraud, J. A. Sauvaud, A. Barthe, J. Bouyssou, Th. Camus, O. Coeur-Joly, A. Cros, J. Cuvilo, F. Ducay, Y. Garbarowitz, J. L. Medale, E. Penou, H. Perrier, D. Romefort, J. Rouzaud, C. Vallat, D. Alcaydé, First multispacecraft ion measurements in and near the Earth's magnetosphere with the identical Cluster ion spectrometry (CIS) experiment Annales Geophysicae. ,vol. 19, pp. 1303- 1354 ,(2001) , 10.5194/ANGEO-19-1303-2001