HR: 0800h
AN: SM21B-0379    [Abstracts]
TI: Electron Pitch Angle Variations Recorded at the High Magnetic Latitude Boundary Layer by the NUADU Instrument on the TC-2 Spacecraft
AU: LU, L
EM: luli@cssar.ac.cn
AF: 1. Centre for Space Science and Applied Research of the Chinese Academy of Sciences, P.O.Box 8701, Beijing, China, Beijing, 100080 China
AU: McKenna-Lawlor, S
EM: stil@may.ie
AF: 2. Space Technology Ireland, National University of Ireland, Maynooth, Co. Kildare, Ireland, Maynooth, xxxxxx
AU: Barabash, S
EM: stas@irf.se
AF: 3. Swedish Institute of Space Physics, Kiruna, Sweden, Kiruna, xxxxxx
AU: Liu, Z
EM: liu@cssar.ac.cn
AF: 1. Centre for Space Science and Applied Research of the Chinese Academy of Sciences, P.O.Box 8701, Beijing, China, Beijing, 100080 China
AU: Balaz, J
EM: jan.balaz@saske.sk
AF: 2. Space Technology Ireland, National University of Ireland, Maynooth, Co. Kildare, Ireland, Maynooth, xxxxxx
AU: Brinkfeldt, K
EM: klas@irf.se
AF: 3. Swedish Institute of Space Physics, Kiruna, Sweden, Kiruna, xxxxxx
AU: Strhansky, I
EM: igor.strhansky@saske.sk
AF: 2. Space Technology Ireland, National University of Ireland, Maynooth, Co. Kildare, Ireland, Maynooth, xxxxxx
AU: Shen, C
EM: sc@cssar.ac.cn
AF: 1. Centre for Space Science and Applied Research of the Chinese Academy of Sciences, P.O.Box 8701, Beijing, China, Beijing, 100080 China
AU: Shi, J
EM: jkshi@cssar.ac.acn
AF: 1. Centre for Space Science and Applied Research of the Chinese Academy of Sciences, P.O.Box 8701, Beijing, China, Beijing, 100080 China
AU: Cao, J
EM: jbcao@cssar.ac.acn
AF: 1. Centre for Space Science and Applied Research of the Chinese Academy of Sciences, P.O.Box 8701, Beijing, China, Beijing, 100080 China
AU: * Pu, Z
EM: zypu@pku.edu.cn
AF: Beijing University, Beijing, China, Beijing, xxxxxx China
AU: Fu, S
EM: suiyanfu@pku.edu.cn
AF: Beijing University, Beijing, China, Beijing, xxxxxx China
AU: Gunell, H
EM: herbert@irf.se
AF: 2. Space Technology Ireland, National University of Ireland, Maynooth, Co. Kildare, Ireland, Maynooth, xxxxxx
AU: Gunell, H
EM: herbert@irf.se
AF: 3. Swedish Institute of Space Physics, Kiruna, Sweden, Kiruna, xxxxxx
AU: Kudela, K
EM: kkudela@upjs.sk
AF: 5. Institute of Experimental Physics, Kosice, Slovakia, Kosice, xxxxxx
AU: Roelof, E C
EM: enmond.roelof@jhuapl.edu
AF: 6. Applied Physics Laboratory, Johns Hopkins University, Maryland, USA, Maryland, xxxxxx
AU: Brandt, P C
EM: pontus.brandt@jhuapl.edu
AF: 6. Applied Physics Laboratory, Johns Hopkins University, Maryland, USA, Maryland, xxxxxx
AU: Dandouras, I
EM: iannis.dandouras@cesr.fr
AF: 7. Centre d­_ Etude Spatialedes Rayonnements Toulouse, Toulouse, France, Toulouse, xxxxxx
AU: Zhang, T
EM: Tielong.Zhang@oeaw.ac.at
AF: 8. Space Research Institute, Austrian Academy of Sciences, Graz, Austria, Graz, xxxxxx
AU: Carr, C
EM: c.m.carr@imperial.ac.uk
AF: 9. Imperial College of Science, London, United Kingdom, London, xxxxxx
AU: Fazakerley, A
EM: anf@mssl.ucl.ac.uk
AF: MSSL, UCL, Holmbury St. Mary, United Kingdom, Holmbury St. Mary, xxxxxx
AB: During the first on orbit commission, with the deflection high voltage zero, the NUADU (NeUtral Atom Detector Unit) instrument aboard TC-2, with its high temporal-spatial resolution recorded 4d solid angle images of energetic particles spiraling around the geomagnetic field lines with different configuration at high northern magnetic latitude L>10. The ambient magnetic field and particles in different energy spectrum were simultaneously measured by the magnetometer experiment (FGM), the plasma electron and current experiment (PEACE), the low energy ion detector (LEID), and the high energy electron detector (HEED). The up-flowing electron beams made the pitch angle distribution (PAD) ring like configuration, and even concentrated toward the field lines to form a dumbbell-type PAD. In integration of the variations of ambient magnetic field and particles in different energy spectrums, a temporal string magnetic bottle model was proposed which might be formed by the disturbance of the magnetic pulse. Changes in the particle pitch angle diffusion may be associated with electron acceleration along the geomagnetic field lines.
DE: 2716 Energetic particles: precipitating
DE: 2720 Energetic particles: trapped
SC: SPA-Magnetospheric Physics [SM]
MN: Fall Meeting 2005