Field-aligned and gyrating ion beams in the Earth's foreshock
|
|
- Octavia Price
- 6 years ago
- Views:
Transcription
1 Field-aligned and gyrating ion beams in the Earth's foreshock Christian Mazelle Centre d'etude Spatiale des Rayonnements,, Toulouse, France Collaborators: K. Meziane 1, M. Wilber 2 1 Physics Department, University of New Brunswick, Fredericton, NB,, Canada 2 Space Sciences laboratory, University of California, Berkeley, USA Cluster and Double Star Symposium, ESTEC, Sept. 2005
2 International Space Science Institute (Bern, Switzerland) working group: "A collaborative Effort to Study the Production and Transport of kev Upstream ions" C. Mazelle 1, K. Meziane 2, J.P. Eastwood 3, A.M. Hamza 2, H. Kucharek 4, D. Le Quéau 5, G. Parks 6, K. Sauer 7, S.J. Schwartz 8, M. Wilber 6 1 Centre d'etude Spatiale des Rayonnements,, Toulouse, France; 2 Physics Department, University of New Brunswick, Fredericton, NB,, Canada; 3 NASA-GSFC, Greenbelt, MD, USA (previously Imperial College, UK); 4 University of New Hampshire, Space Science Center, Durham, NH, USA; U 5 Observatoire Midi-Pyrénées Pyrénées,, Toulouse, France; 6 Space Sciences Laboratory, University of California, Berkeley, USA; U 7 Max-Planck Planck-Institut für Aeronomie, Katlenburg-Lindau Lindau,, Germany; 8 Queen Mary College, University of London, UK.
3 Outline 1- Gyrophase-bunched ion distributions in the ion foreshock 2- Low Frequency wave properties 3- Wave excitation: linear theory Cyclotron resonance 4- Nonlinear coherent wave-particle interaction
4 B TL foreshock B Cluster
5 Planetary Foreshock [after Paschmann et al., 1979] B Diffuse ions Ion foreshock boundary Ions θ Bn n B Reflected Ion beams FABs VS Intermediate distributions Gyrating Ions Electrons Q-// shock Ion foreshock [after Paschmann et al., 1979] B θ Bn n Q- shock Gyrophase-bunched ions [after Tsurutani and Rodriguez, 1981] [Thomsen et al., 1985]
6 Sc1 23:35:33-23:35:37 CLUSTER CODIF Product E = eV B E=8.4 kev 23:35:37-23:35:41 4 s 23:35:41-23:35:45 3D angular distributions (H + ) Projection of the normalized distribution function on a constant energy sphere in the solar wind frame Field-aligned beam ions 23:35:45-23:35:49 23:35:53-23:35:57 23:35:57-23:36:01 B B B Gyrophase-bunched ions 23:36:01-23:36:05 23:36:05-23:36:09 23:36:09-23:36:13 Centered on the background field B (averaged on the observation interval) Subsequent distributions for the energy level of maximum flux (~8 kev) Accumulation time : 4 s Cyclotron period : 7 s Modification of the distribution B B B Large pitch-angles (~60 ) in SW frame Distributions highly non gyrotropic [Mazelle,, et al., Planet Sp. Sci., 2003]
7 Gyrophase-bunched ions LF Waves Field-aligned beams Separation between satellite ~ 1 R E
8 Observations close to the FAB/gyrating ions boundary Observations close to the Solar FAB/gyrating wind ions boundary Field-aligned beams Gyrophase-bunched ions no obvious wave Large amplitude LF coherent waves
9 Observations close to the FAB/gyrating ions boundary Observations close to the Solar FAB/gyrating wind ions boundary Field-aligned beams no obvious wave
10 Quick excursion in the gyrating ions' region beam energy decrease Wave amplitude variations
11 Low Frequency wave properties: Minimum Variance Analysis T ~ 233 sec T cyclotron = 7 sec λ 1 /λ 2 = 1.3 λ 2 /λ 3 = 40.1 θ kb = 12±2 1 δb /B 0 ~ 0.2 δ B /B 0 ~ LH LH Left-hand polarized in s/c frame but θ kv = 140 with upstream propagation in SW frame V phase V Alfven << V sw anomalous Doppler shift Right-Hand mode waves in plasma frame
12 Low Frequency wave properties: Minimum Variance Analysis large amplitude waves T ~ 30 sec T cyclotron = 8 sec λ 1 /λ 2 = 1.1 λ 2 /λ 3 = 48.0 θ kb = 15±1 δb /B 0 ~ 0.63 δ B /B 0 ~ 0.24 LH Left-hand polarized in s/c frame upstream propagation in SW frame with θ kv = 135 again Right-Hand mode waves Similar properties
13 Low frequency multi-spacecraft wave analysis Minimum variance analysis for each individual spacecraft: polarization analysis and k direction Multi-spacecraft analysis: determination of the wave phase velocity and plasma frame frequency without ambiguity Wave front timing method V phase plane wave front ω, k Confirms the right-hand hand polarization in plasma frame
14 possibility of cyclotron resonant wave generation Field-aligned beams: observed just before the gyrating distributions appear in cyclotron resonance with the ULF RH mode waves: ω k // V // + Ω p = 0 frame s/c and sw (= (=T obs Tpred Need for an acurate determination of Vbeam = 2π ω ' if resonance)
15 FABs properties (solar wind frame) ( +=Bo ) Determination of beam velocity See poster P2.6 by K. Meziane et al. [Meziane et al, 2005]
16 Sc1 23:35:33-23:35:37 CLUSTER CODIF Product E = eV B E=8.4 kev 23:35:37-23:35:41 23:35:41-23:35:45 3D angular distributions (H + ) Field-aligned beam ions 23:35:45-23:35:49 23:35:53-23:35:57 23:35:57-23:36:01 B B B Gyrophase-bunched ions 23:36:01-23:36:05 23:36:05-23:36:09 23:36:09-23:36:13 Modification of the distribution at the onset of LF waves B B B
17 possibility of cyclotron resonant wave generation Field-aligned beams: observed just before the gyrating distributions appear in cyclotron resonance with the ULF RH mode waves: s/c sw ω e.g. for at 2335:37 UT // V // + Ω p = V // = 1060 ±50 km/s T pred = 25.4 s while T obs = 25±2.0 s!! k 0 and frame (=T obs Tpred = 2π ω ' if resonance) Parallel wavelength: while λ // exp λ // reson= 2πV// ω+ω p = 7,000 ± 300 km = 6,700 km generation from the ion/ion resonant RH beam instability?
18 Wave dispersion analysis Solution of Maxwell-Vlasov dispersion relation: linear theory Obtained for the observed parameters ω r Ω p Cluster /04/07 Backstreaming Ion Parallel Beam 2335:37 UT n b =0.007 cm 3 V b =1060 km/s T b =130 ev frequency kv A / Ω p ω =kv A Maximum linear growth rate Wavenumber associated to the excited mode [Mazelle,, et al., PSS, 2003] γ Ω p Real frequency (solid line) and linear growth rate (dashed line) right-hand ion/ion instability : V ω r Ω p theory phase λ // λ λ // // Ω γ Ω max res exp p p max max =0.1 =0.05 : cyclotron frequency = 1. 1 V Alfvén = 6670 km = 6700 km V obs phase = 7000 ± 300 km
19 Remote study of shock geometry Use of a bow shock model., 1995] Gyrating ions interval [Cairns et al., 1995] θ Bn ~30 Q-// shock Sun D x D S ~0.5 R E Cluster sc 1 April 7, 2001
20 Interpretation of the observations for these gyrating ion events: Gyrating ion distributions: (1) Properties inconsistent with direct production from the reflection mechanism at the shock surface: 1. observed pitch-angle α exp larger than 45 and different from θ Bn as expected e.g. from a specular reflection where α exp must be < 39 [Schwartz et al., 1983] 2. ions observed at distances from the shock larger than their gyroradius need for a local production mechanism (no remote finite Larmor radius effect). (2) Predicted periods (T pred ) in the spacecraft frame for cyclotron resonance with right-hand mode waves using the parallel velocity of the gyrating ions very close to observed periods possibility of wave-particle interaction Wave generation from the ion beam instability and subsequent nonlinear beam disruption by the wave to produce the gyrating distributions?
21 Non linear wave-particle interaction: wave trapping Invariants of motion of an ion with velocity v in a frame moving // to B 0 at wave speed V phase (E=0): 2 2 // T = w + w = C 1 ψ = π/2 0 (normalized kinetic energy) 2 Ω1 S = ( w// 1) 2 w sinψ = C2 ( // & exchange ) Ω trapped orbits 0 w= k // 01, v Ω Ω 01, = qb Ω1 δb ψ = ϕ +k = / / z 0 gyrophase m Ω0 B0 ψ Hamiltonian S( α, ψ ) with tanα = w w // α Singularity: and ( ) 1/ B 0 α δb for small α o untrapped orbits [Mazelle et al., Nonlinear Processes in Geophysics, 2000] V V ph// initial resonant beam V //
22 Determination of ion properties (SW( frame) Field-aligned Beam Fits of reduced distribution functions Gyrating ions f( V// ) f( V //) f( V ) beam velocity V// V [MezianeMeziane et al, 2005]
23 Comparison with observations (1) Time Gyrating ions // ( km s) V ( km / s) V / 23:38:09 UT α exp 23:38:13 UT :38:25 UT :38:29 UT :38:45 UT [Mazelle et al., PSS, 2003] αotheor = for very good agreement δ B = B
24 Comparison with observations (2) Pitch-angle distribution in the "wave" frame Gyrophase-bunched Ions Constant-energy Sphere in the "wave" frame α o, theory 50 km/s initial resonant beam Consistent with theory (energy conservation)
25 Check of cyclotron resonance Observed wave period versus Predicted (using Tcy,, V //, ω and k) 12 different events very good agreement first quantitative demonstration of the cyclotron resonance in the foreshock
26 Check of 1-wave 1 trapping theory α 0 (theory) depends only on the wave amplitude δb B 16 intervals good agreement
27 Check of wave frame energy conservation good agreement
28 Conclusion: foreshock FABs and gyrating ions Observations of well-defined gyrophase-bunched backstreaming ion distributions in the Earth s s foreshock. Association with quasi-monochromatic, large amplitude, low frequency right-hand hand mode waves. Possibility of resonantly driving these waves unstable from the electromagnetic ion/ion beam instability: good quantitative agreement with the observed field-aligned ion beams. The angular distribution of the gyrophase-bunched ions is peaked at a pitch angle in good agreement with nonlinear single wave phase-trapping orbit theory. These results have implications on the understanding of a planetary foreshock and show the possibility to study some plasma microphysics with Cluster (while( not designed for it).
29 END
FIELD-ALIGNED AND GYRATING ION BEAMS IN THE EARTH'S FORESHOCK
FIELD-ALIGNED AND GYRATING ION BEAMS IN THE EARTH'S FORESHOCK 1 C. Mazelle (1), K. Meziane (2), M. Wilber (3) (1) Centre d'etudes Spatiales des Rayonnements, CNRS, 9 Avenue du Colonel Roche, Toulouse,
More informationComparative Planetary Foreshocks: Results from recent studies. Karim Meziane University of New Brunswick
Comparative Planetary Foreshocks: Results from recent studies Karim Meziane University of New Brunswick Outline Motivation Bow shock curvature New results from MAVEN Venus similarity with Earth Quasi-parallel
More informationON THE ION REFLECTION PROPERTIES OF THE QUASI-PERPENDICULAR EARTH S BOW SHOCK
ON THE ION REFLECTION PROPERTIES OF THE QUASI-PERPENDICULAR EARTH S BOW SHOCK 1 H. Kucharek (1), E. Moebius (1), M. Scholer (2), R. Behlke (3), C. Mouikis (1), P. Puhl-Quinn (1), L.M. Kistler (1), T. Horbury
More informationWave observations at the foreshock boundary in the near-mars space
Earth Planets Space, 50, 439 444, 1998 Wave observations at the foreshock boundary in the near-mars space A. Skalsky 1,2, E. Dubinin 1,2,4, M. Delva 2,5, R. Grard 3, S. Klimov 1, K. Sauer 2,4, and J.-G.
More informationIdentification of low-frequency kinetic wave modes in the Earth s ion foreshock
Ann. Geophysicae 15, 273 288 (1997) EGS Springer-Verlag 1997 Identification of low-frequency kinetic wave modes in the Earth s ion foreshock X. Blanco-Cano 1 and S. J. Schwartz 2 1 Instituto de Geofísica,
More informationSTATISTICAL STUDY OF RELATIONSHIPS BETWEEN DAYSIDE HIGH-ALTITUDE/-LATITUDE O + OUTFLOWS, SOLAR WINDS, AND GEOMAGNETIC ACTIVITY
1 STATISTICAL STUDY OF RELATIONSHIPS BETWEEN DAYSIDE HIGH-ALTITUDE/-LATITUDE O + OUTFLOWS, SOLAR WINDS, AND GEOMAGNETIC ACTIVITY Sachiko Arvelius 1, M. Yamauchi 1, H. Nilsson 1, R. Lundin 1, H. Rème 2,
More informationA Review of Density Holes Upstream of Earth s Bow Shock
0254-6124/2011/31(6)-693 12 Chin. J. Space Sci. Ξ ΛΠΠ G K Parks, E Lee, N Lin, J B Cao, S Y Fu, J K Shi. A review of density holes upstream of Earth s bow shock. Chin. J. Space Sci., 2011, 31(6): 693-704
More informationIon Cyclotron Waves in the High Altitude Cusp: CLUSTER observations at Varying Spacecraft Separations
Publications 12-20-2003 Ion Cyclotron Waves in the High Altitude Cusp: CLUSTER observations at Varying Spacecraft Separations K. Nykyri, nykyrik@erau.edu P. J. Cargill E. A. Lucek T. S. Horbury A. Balogh
More informationThe role of large amplitude upstream low-frequency waves. in the generation of superthermal ions at a quasi-parallel
The role of large amplitude upstream low-frequency waves in the generation of superthermal ions at a quasi-parallel collisionless shock: Cluster Observations Mingyu Wu 1,2,3, Yufei Hao 1, Quanming Lu 1,3,
More informationMercury s magnetosphere-solar wind interaction for northward and southward interplanetary magnetic field during the MESSENGER Flybys
Mercury s magnetosphere-solar wind interaction for northward and southward interplanetary magnetic field during the MESSENGER Flybys P. M. Trávníček 1,3, D. Schriver 2, D. Herčík 3, P. Hellinger 3, J.
More informationPickup Proton Instabilities and Scattering in the Distant Solar Wind and the Outer Heliosheath: Hybrid Simulations
Pickup Proton Instabilities and Scattering in the Distant Solar Wind and the Outer Heliosheath: Hybrid Simulations Kaijun Liu 1,2, Eberhard Möbius 2,3, S. P. Gary 2,4, Dan Winske 2 1 Auburn University,
More informationAlfvén waves in the foreshock propagating upstream in the plasma rest frame: statistics from Cluster observations
Annales Geophysicae (2004) 22: 2315 2323 SRef-ID: 1432-0576/ag/2004-22-2315 European Geosciences Union 2004 Annales Geophysicae Alfvén waves in the foreshock propagating upstream in the plasma rest frame:
More informationSmall scale solar wind turbulence: Recent observations and theoretical modeling
Small scale solar wind turbulence: Recent observations and theoretical modeling F. Sahraoui 1,2 & M. Goldstein 1 1 NASA/GSFC, Greenbelt, USA 2 LPP, CNRS-Ecole Polytechnique, Vélizy, France Outline Motivations
More informationStudy of Wave-Particle Interaction Using Wind/ACE Data
Study of Wave-Particle Interaction Using Wind/ACE Data Lan Jian (lan.jian@nasa.gov) 1. 2. University of Maryland, College Park NASA Goddard Space Flight Center Collaborators: M. Stevens, S. P. Gary, A.
More informationReal shocks: the Earth s bow shock
Real shocks: the Earth s bow shock Quasi-perpendicular shocks Real shock normals/speeds Substructure within the ramp Shock variability Source of ions beams upstream Quasi-parallel shocks Ion acceleration
More informationModern Challenges in Nonlinear Plasma Physics A Conference Honouring the Career of Dennis Papadopoulos
Modern Challenges in Nonlinear Plasma Physics A Conference Honouring the Career of Dennis Papadopoulos Progress in Plasma Physics by Numerical Simulation: Collisionless Shocks Manfred Scholer Max-Planck-Institut
More informationSpace Physics. An Introduction to Plasmas and Particles in the Heliosphere and Magnetospheres. May-Britt Kallenrode. Springer
May-Britt Kallenrode Space Physics An Introduction to Plasmas and Particles in the Heliosphere and Magnetospheres With 170 Figures, 9 Tables, Numerous Exercises and Problems Springer Contents 1. Introduction
More informationGeneral aspects of whistler wave generation in space plasmas K. Sauer and R. Sydora
General aspects of whistler wave generation in space plasmas K. Sauer and R. Sydora Institute of Geophysics, University of Alberta, Canada ISSS-10, Banff, Canada, July 24-30, 2011 General aspects of whistler
More informationKinetic Alfvén waves in space plasmas
Kinetic Alfvén waves in space plasmas Yuriy Voitenko Belgian Institute for Space Aeronomy, Brussels, Belgium Solar-Terrestrial Center of Excellence, Space Pole, Belgium Recent results obtained in collaboration
More informationSimulation study on the nonlinear EMIC waves
SH21B-2210 Simulation study on the nonlinear EMIC waves Kicheol Rha 1*, Chang-Mo Ryu 1 and Peter H Yoon 2 * lancelot@postech.ac.kr 1 Department of Physics, Pohang University of Science and Technology,
More informationSimulation Study of High-Frequency Magnetosonic Waves Excited by Energetic Ions in Association with Ion Cyclotron Emission )
Simulation Study of High-Frequency Magnetosonic Waves Excited by Energetic Ions in Association with Ion Cyclotron Emission ) Mieko TOIDA 1),KenjiSAITO 1), Hiroe IGAMI 1), Tsuyoshi AKIYAMA 1,2), Shuji KAMIO
More informationThe Physics of Collisionless Accretion Flows. Eliot Quataert (UC Berkeley)
The Physics of Collisionless Accretion Flows Eliot Quataert (UC Berkeley) Accretion Disks: Physical Picture Simple Consequences of Mass, Momentum, & Energy Conservation Matter Inspirals on Approximately
More informationTHE PHYSICS OF PARTICLE ACCELERATION BY COLLISIONLESS SHOCKS
THE PHYSICS OF PARTICLE ACCELERATION BY COLLISIONLESS SHOCKS Joe Giacalone Lunary & Planetary Laboratory, University of Arizona, Tucson, AZ, 8572, USA ABSTRACT Using analytic theory, test-particle simulations,
More informationMulti Spacecraft Observation of Compressional Mode ULF Waves Excitation and Relativistic Electron Acceleration
Multi Spacecraft Observation of Compressional Mode ULF Waves Excitation and Relativistic Electron Acceleration X. Shao 1, L. C. Tan 1, A. S. Sharma 1, S. F. Fung 2, Mattias Tornquist 3,Dimitris Vassiliadis
More informationWave-particle interactions in dispersive shear Alfvèn waves
Wave-particle interactions in dispersive shear Alfvèn waves R. Rankin and C. E. J. Watt Department of Physics, University of Alberta, Edmonton, Canada. Outline Auroral electron acceleration in short parallel
More informationRelativistic Solar Electrons - where and how are they formed?
Relativistic Solar Electrons - where and how are they formed? Ilan Roth Space Sciences, UC Berkeley Nonlinear Processes in Astrophysical Plasmas Kavli Institute for Theoretical Physics Santa Barbara September
More informationCluster observations of hot flow anomalies with large flow
JOURNAL OF GEOPHYSICAL RESEARCH: SPACE PHYSICS, VOL. 118, 418 433, doi:1.129/212ja1824, 213 Cluster observations of hot flow anomalies with large flow deflections: 2. Bow shock geometry at HFA edges Shan
More informationIon acceleration by multiple reflections at Martian bow shock
Earth Planets Space, 64, 61 71, 2012 Ion acceleration by multiple reflections at Martian bow shock M. Yamauchi 1, Y. Futaana 1, A. Fedorov 2, R. A. Frahm 3, E. Dubinin 4, R. Lundin 1, J.-A. Sauvaud 2,
More informationTotal Reflection of the Strahl within the Foot of the Earth s Bow Shock
Total Reflection of the Strahl within the Foot of the Earth s Bow Shock Christopher A. Gurgiolo *1, Melvyn L. Goldstein 2, and Adolfo Viñas 3 1 Bitterroot Basic Research, Hamilton, MT, USA 2 Space Science
More informationParallel Heating Associated with Interaction of Forward and Backward Electromagnetic Cyclotron Waves
J. Geomag. Geoelectr., 40, 949-961, 1988 Parallel Heating Associated with Interaction of Forward and Backward Electromagnetic Cyclotron Waves Yoshiharu OMURA1, Hideyuki USUI2, and Hiroshi MATSUMOTO1 2Department
More informationPlanetary Magnetospheres: Homework Problems
Planetary Magnetospheres: Homework Problems s will be posted online at http://www.ucl.ac.uk/ ucapnac 1. In classical electromagnetic theory, the magnetic moment µ L associated with a circular current loop
More informationForced hybrid-kinetic turbulence in 2D3V
Forced hybrid-kinetic turbulence in 2D3V Silvio Sergio Cerri1,2 1 In collaboration with: 3 F. Califano, F. Rincon, F. Jenko4, D. Told4 1 Physics Department E. Fermi, University of Pisa, Italy fu r Plasmaphysik,
More informationNonlinear low-frequency wave aspect of foreshock density holes
Ann. Geophys., 26, 377 3718, 28 www.ann-geophys.net/26/377/28/ European Geosciences Union 28 Annales Geophysicae Nonlinear low-frequency wave aspect of foreshock density holes N. Lin 1, E. Lee 1, F. Mozer
More informationNonlinear & Stochastic Growth Processes in Beam-Plasma Systems: Recent Work on Type III Bursts
Nonlinear & Stochastic Growth Processes in Beam-Plasma Systems: Recent Work on Type III Bursts Iver H. Cairns 1, Daniel B. Graham 1,2, Bo Li 1, A. Layden 1, B. Layden (1 = U. Sydney, 2 = Swed. Int. Sp.
More informationEarth s Bow Shock and Magnetosheath
Chapter 12 Earth s Bow Shock and Magnetosheath Aims and Learning Outcomes The Aim of this Chapter is to explore in more detail the physics of fast mode shocks and to introduce the physics of planetary
More informationPARTICLE ACCELERATION AT COMETS
PARTICLE ACCELERATION AT COMETS Tamas I. Gombosi Space Physics Research Laboratory Department of Atmospheric, Oceanic and Space Sciences The University of Michigan, Ann Arbor, MI 48109 ABSTRACT This paper
More informationCluster observations of hot flow anomalies
JOURNAL OF GEOPHYSICAL RESEARCH, VOL. 109,, doi:10.1029/2003ja010016, 2004 Cluster observations of hot flow anomalies E. A. Lucek, T. S. Horbury, and A. Balogh Blackett Laboratory, Imperial College, London,
More informationGlobal MHD Eigenmodes of the Outer Magnetosphere
Global MHD Eigenmodes of the Outer Magnetosphere Andrew Wright UNIVERSITY OF ST ANDREWS Magnetospheric Structure: Cavities and Waveguides The Earth s magnetosphere is structured by magnetic fields and
More informationNon-Linear Plasma Wave Decay to Longer Wavelength
Non-Linear Plasma Wave Decay to Longer Wavelength F. Anderegg 1, a), M. Affolter 1, A. Ashourvan 1, D.H.E. Dubin 1, F. Valentini 2 and C.F. Driscoll 1 1 University of California San Diego Physics Department
More informationThe importance of solar wind magnetic. the upcoming Sunjammer solar sail. field observations & mission
The importance of solar wind magnetic field observations & the upcoming Sunjammer solar sail mission J. P. Eastwood The Blackett Laboratory, Imperial College London, London SW7 2AZ, UK 13 November 2013
More informationThe properties and causes of rippling in quasi-perpendicular collisionless shock fronts
Annales Geophysicae (2003) 21: 671 679 c European Geosciences Union 2003 Annales Geophysicae The properties and causes of rippling in quasi-perpendicular collisionless shock fronts R. E. Lowe and D. Burgess
More informationPlasma Physics for Astrophysics
- ' ' * ' Plasma Physics for Astrophysics RUSSELL M. KULSRUD PRINCETON UNIVERSITY E;RESS '. ' PRINCETON AND OXFORD,, ', V. List of Figures Foreword by John N. Bahcall Preface Chapter 1. Introduction 1
More informationAnisotropic electron distribution functions and the transition between the Weibel and the whistler instabilities
Anisotropic electron distribution functions and the transition between the Weibel and the whistler instabilities F. Pegoraro, L. Palodhi, F. Califano 5 th INTERNATIONAL CONFERENCE ON THE FRONTIERS OF PLASMA
More informationSpace Plasma Physics Thomas Wiegelmann, 2012
Space Plasma Physics Thomas Wiegelmann, 2012 1. Basic Plasma Physics concepts 2. Overview about solar system plasmas Plasma Models 3. Single particle motion, Test particle model 4. Statistic description
More informationIntroduction to Plasma Physics
Introduction to Plasma Physics Hartmut Zohm Max-Planck-Institut für Plasmaphysik 85748 Garching DPG Advanced Physics School The Physics of ITER Bad Honnef, 22.09.2014 A simplistic view on a Fusion Power
More informationarxiv: v2 [physics.space-ph] 3 Apr 2015
The ULF wave foreshock boundary: Cluster observations Nahuel Andrés, 1,2,a) Karim Meziane, 3 Christian Mazelle, 4 Cesar Bertucci, 1,2 and Daniel Gómez 1,2 1) Instituto de Astronomía y Física del Espacio
More informationA global study of hot flow anomalies using Cluster multi-spacecraft measurements
Ann. Geophys., 27, 2057 2076, 2009 Author(s) 2009. This work is distributed under the Creative Commons Attribution 3.0 License. Annales Geophysicae A global study of hot flow anomalies using Cluster multi-spacecraft
More informationSingle particle motion and trapped particles
Single particle motion and trapped particles Gyromotion of ions and electrons Drifts in electric fields Inhomogeneous magnetic fields Magnetic and general drift motions Trapped magnetospheric particles
More informationX-ray imaging of the magnetosphere
X-ray imaging of the magnetosphere T. R. Sun 1, C. Wang 1, F. Wei 1, S. F. Sembay 2, J. A. Carter 2, S. Milan 2, A. M. Read 2, G. Branduardi-Raymont 3, J. Rae 3, H. Hietala 4, J. Eastwood 4, W. Yuan 5,
More informationIn-Situ vs. Remote Sensing
In-Situ vs. Remote Sensing J. L. Burch Southwest Research Institute San Antonio, TX USA Forum on the Future of Magnetospheric Research International Space Science Institute Bern, Switzerland March 24-25,
More informationIntro to magnetosphere (Chap. 8) Schematic of Bow Shock and Foreshock. Flow around planetary magnetic field obstacle. Homework #3 posted
Intro to magnetosphere (Chap. 8) Homework #3 posted Reading: Finish Chap. 8 of Kallenrode Interaction with solar wind a. Magnetopause b. Structure of magnetosphere - open vs closed c. Convection d. Magnetotail
More informationO 5+ at a heliocentric distance of about 2.5 R.
EFFECT OF THE LINE-OF-SIGHT INTEGRATION ON THE PROFILES OF CORONAL LINES N.-E. Raouafi and S. K. Solanki Max-Planck-Institut für Aeronomie, 37191 Katlenburg-Lindau, Germany E-mail: Raouafi@linmpi.mpg.de;
More informationarxiv: v1 [physics.space-ph] 19 Jul 2018
Manuscript prepared for Ann. Geophys. with version 1.3 of the L A TEX class copernicus.cls. Date: 20 July 2018 arxiv:1807.07368v1 [physics.space-ph] 19 Jul 2018 A global study of hot flow anomalies using
More informationA small magnetosphere-solar wind interaction for northward and southward interplanetary magnetic field: Hybrid simulation results
A small magnetosphere-solar wind interaction for northward and southward interplanetary magnetic field: Hybrid simulation results Pavel M. Trávníček Institute of Geophysics and Planetary Physics, UCLA,
More informationILWS activity in Romania
Institute of Space Science romanian space agency ILWS activity in Romania Dumitru HASEGAN 1,2. Octav MARGHITU 1 1-ISS, 2-ROSA Outline A. Introduction Historical synopsis B. Research themes 1. Solar-Terrestrial
More informationTHE INTERACTION OF TURBULENCE WITH THE HELIOSPHERIC SHOCK
THE INTERACTION OF TURBULENCE WITH THE HELIOSPHERIC SHOCK G.P. Zank, I. Kryukov, N. Pogorelov, S. Borovikov, Dastgeer Shaikh, and X. Ao CSPAR, University of Alabama in Huntsville Heliospheric observations
More informationWaves in plasma. Denis Gialis
Waves in plasma Denis Gialis This is a short introduction on waves in a non-relativistic plasma. We will consider a plasma of electrons and protons which is fully ionized, nonrelativistic and homogeneous.
More informationRole of coherent structures in space plasma turbulence: Filamentation of dispersive Alfvén waves in density channels
Role of coherent structures in space plasma turbulence: Filamentation of dispersive Alfvén waves in density channels T. Passot, P.L. Sulem, D. Borgogno, D. Laveder Observatoire de la Côte d Azur, Nice
More informationLow-frequency electromagnetic waves and instabilities within the Martian bi-ion plasma
Earth Planets Space, 50, 69 78, 1998 Low-frequency electromagnetic waves and instabilities within the Martian bi-ion plasma K. Sauer 1,4, E. Dubinin 1,,4, K. Baumgärtel 3,4, and V. Tarasov,4 1 Max-Planck-Institut
More informationSimulation of the plasma environment of Titan in the magnetosheath flow of Saturn
Poster n 4 Simulation of the plasma environment of Titan in the magnetosheath flow of Saturn G. Chanteur & R. Modolo CETP IPSL Vélizy, France 1 Introduction It is assumed that Titan has no intrinsic magnetic
More informationThe MRI in a Collisionless Plasma
The MRI in a Collisionless Plasma Eliot Quataert (UC Berkeley) Collaborators: Prateek Sharma, Greg Hammett, Jim Stone Modes of Accretion thin disk: energy radiated away (relevant to star & planet formation,
More informationCluster Observations of the Electron Low- Latitude Boundary Layer at Mid-Altitudes
UCL DEPT. OF SPACE & CLIMATE PHYSICS MULLARD SPACE SCIENCE LABORATORY Cluster Observations of the Electron Low- Latitude Boundary Layer at Mid-Altitudes Y.V. Bogdanova 1, C.J. Owen 1, A.N. Fazakerley 1,
More informationHigh energy particles from the Sun. Arto Sandroos Sun-Earth connections
High energy particles from the Sun Arto Sandroos Sun-Earth connections 25.1.2006 Background In addition to the solar wind, there are also particles with higher energies emerging from the Sun. First observations
More informationA Three-Fluid Approach to Model Coupling of Solar Wind-Magnetosphere-Ionosphere- Thermosphere
A Three-Fluid Approach to Model Coupling of Solar Wind-Magnetosphere-Ionosphere- Thermosphere P. Song Center for Atmospheric Research University of Massachusetts Lowell V. M. Vasyliūnas Max-Planck-Institut
More informationDispersive Media, Lecture 7 - Thomas Johnson 1. Waves in plasmas. T. Johnson
2017-02-14 Dispersive Media, Lecture 7 - Thomas Johnson 1 Waves in plasmas T. Johnson Introduction to plasmas as a coupled system Magneto-Hydro Dynamics, MHD Plasmas without magnetic fields Cold plasmas
More informationMicrostructure of the heliospheric termination shock: Full particle electrodynamic simulations
JOURNAL OF GEOPHYSICAL RESEARCH, VOL. 116,, doi:10.1029/2011ja016563, 2011 Microstructure of the heliospheric termination shock: Full particle electrodynamic simulations Shuichi Matsukiyo 1 and Manfred
More informationELECTROSTATIC ION-CYCLOTRON WAVES DRIVEN BY PARALLEL VELOCITY SHEAR
1 ELECTROSTATIC ION-CYCLOTRON WAVES DRIVEN BY PARALLEL VELOCITY SHEAR R. L. Merlino Department of Physics and Astronomy University of Iowa Iowa City, IA 52242 December 21, 2001 ABSTRACT Using a fluid treatment,
More informationThe Auroral Zone: Potential Structures in Field and Density Gradients
The Auroral Zone: Potential Structures in Field and Density Gradients David Schriver May 8, 2007 Global Kinetic Modeling: week 10 Foreshock (week 3) Auroral zone (week 7) (week 8) Radiation Belt (week
More informationChapter 1. Introduction to Nonlinear Space Plasma Physics
Chapter 1. Introduction to Nonlinear Space Plasma Physics The goal of this course, Nonlinear Space Plasma Physics, is to explore the formation, evolution, propagation, and characteristics of the large
More informationWave Turbulence and Condensation in an Optical Experiment
Wave Turbulence and Condensation in an Optical Experiment S. Residori, U. Bortolozzo Institut Non Linéaire de Nice, CNRS, France S. Nazarenko, J. Laurie Mathematics Institute, University of Warwick, UK
More informationFirst observations of foreshock bubbles upstream of Earth s bow shock: Characteristics and comparisons to HFAs
JOURNAL OF GEOPHYSICAL RESEARCH: SPACE PHYSICS, VOL. 118, 1 17, doi:1.1/jgra.198, 13 First observations of foreshock bubbles upstream of Earth s bow shock: Characteristics and comparisons to HFAs D. L.
More informationSolar Wind Turbulent Heating by Interstellar Pickup Protons: 2-Component Model
Solar Wind Turbulent Heating by Interstellar Pickup Protons: 2-Component Model Philip A. Isenberg a, Sean Oughton b, Charles W. Smith a and William H. Matthaeus c a Inst. for Study of Earth, Oceans and
More informationExperiments with a Supported Dipole
Experiments with a Supported Dipole Reporting Measurements of the Interchange Instability Excited by Electron Pressure and Centrifugal Force Introduction Ben Levitt and Dmitry Maslovsky Collisionless Terrella
More informationMagnetically Induced Transparency and Its Application as an Accelerator
Magnetically Induced Transparency and Its Application as an Accelerator M.S. Hur, J.S. Wurtele and G. Shvets University of California Berkeley University of California Berkeley and Lawrence Berkeley National
More informationWavelet application to the magnetic field turbulence in the upstream region of the Martian bow shock
Earth Planets Space, 50, 699 708, 1998 Wavelet application to the magnetic field turbulence in the upstream region of the Martian bow shock V. Tarasov 1,4,6, E. Dubinin 2,3,4, S. Perraut 1, A. Roux 1,
More informationDestruction of a Magnetic Mirror-Trapped Hot Electron Ring by a shear Alfven Wave
Destruction of a Magnetic Mirror-Trapped Hot Electron Ring by a shear Alfven Wave Y. Wang 1, W. Gekelman 1, P. Pribyl 1, D. Papadopoulos 2 1 University of California, Los Angeles 2 University of Maryland,
More informationNonlinear Evolution and Radial Propagation of the Energetic Particle Driven GAM
Nonlinear Evolution and Radial Propagation of the Energetic Particle Driven GAM by R. Nazikian In collaboration with G.Y. Fu, R.V. Budny, G.J. Kramer, PPPL G.R. McKee, U. Wisconsin T. Rhodes, L. Schmidt,
More informationPhase-standing whistler fluctuations detected by SELENE and ARTEMIS around the Moon
Symposium on Planetary Science 217, February 2 21, Sendai Phase-standing whistler fluctuations detected by SELENE and ARTEMIS around the Moon Yasunori Tsugawa 1, Y. Katoh 2, N. Terada 2, and S. Machida
More informationTHEMIS observations of a Hot Flow Anomaly at the Earth s bow shock: simultaneous solar wind, magnetosheath and ground based measurements
THEMIS observations of a Hot Flow Anomaly at the Earth s bow shock: simultaneous solar wind, magnetosheath and ground based measurements J. P. Eastwood (1), D. G. Sibeck (), V. Angelopoulos (,1), T.-D.
More informationFundamentals of wave kinetic theory
Fundamentals of wave kinetic theory Introduction to the subject Perturbation theory of electrostatic fluctuations Landau damping - mathematics Physics of Landau damping Unmagnetized plasma waves The plasma
More informationHybrid Simulations: Numerical Details and Current Applications
Hybrid Simulations: Numerical Details and Current Applications Dietmar Krauss-Varban and numerous collaborators Space Sciences Laboratory, UC Berkeley, USA Boulder, 07/25/2008 Content 1. Heliospheric/Space
More informationSpecial relativity and light RL 4.1, 4.9, 5.4, (6.7)
Special relativity and light RL 4.1, 4.9, 5.4, (6.7) First: Bremsstrahlung recap Braking radiation, free-free emission Important in hot plasma (e.g. coronae) Most relevant: thermal Bremsstrahlung What
More informationAST 553. Plasma Waves and Instabilities. Course Outline. (Dated: December 4, 2018)
AST 553. Plasma Waves and Instabilities Course Outline (Dated: December 4, 2018) I. INTRODUCTION Basic concepts Waves in plasmas as EM field oscillations Maxwell s equations, Gauss s laws as initial conditions
More informationPUBLICATIONS. Journal of Geophysical Research: Space Physics
PUBLICATIONS Journal of Geophysical Research: Space Physics RESEARCH ARTICLE Key Points: Saturated beam instabilities lead to plateau distributions with finite current Current-driven Langmuir oscillations
More informationGyrokinetics an efficient framework for studying turbulence and reconnection in magnetized plasmas
Frank Jenko Gyrokinetics an efficient framework for studying turbulence and reconnection in magnetized plasmas Max-Planck-Institut für Plasmaphysik, Garching Workshop on Vlasov-Maxwell Kinetics WPI, Vienna,
More informationSpace Physics. ELEC-E4520 (5 cr) Teacher: Esa Kallio Assistant: Markku Alho and Riku Järvinen. Aalto University School of Electrical Engineering
Space Physics ELEC-E4520 (5 cr) Teacher: Esa Kallio Assistant: Markku Alho and Riku Järvinen Aalto University School of Electrical Engineering The 6 th week: topics Last week: Examples of waves MHD: Examples
More informationSTATISTICAL PROPERTIES OF FAST FORWARD TRANSIENT INTERPLANETARY SHOCKS AND ASSOCIATED ENERGETIC PARTICLE EVENTS: ACE OBSERVATIONS
STATISTICAL PROPERTIES OF FAST FORWARD TRANSIENT INTERPLANETARY SHOCKS AND ASSOCIATED ENERGETIC PARTICLE EVENTS: ACE OBSERVATIONS D. Lario (1), Q. Hu (2), G. C. Ho (1), R. B. Decker (1), E. C. Roelof (1),
More informationFermi acceleration of electrons inside foreshock transient cores
Fermi acceleration of electrons inside foreshock transient cores Terry Z. Liu 1, San Lu 1, Vassilis Angelopoulos 1, Heli Hietala 1, and Lynn B. Wilson III 2 1 Department of Earth, Planetary, and Space
More informationNeutral sheet normal direction determination
Advances in Space Research 36 (2005) 1940 1945 www.elsevier.com/locate/asr Neutral sheet normal direction determination T.L. Zhang a, *, W. Baumjohann a, R. Nakamura a, M. Volwerk a, A. Runov a,z.vörös
More informationNonlinear processes of whistler-mode wave-particle interactions
Nonlinear processes of whistler-mode wave-particle interactions Yoshiharu Omura Research Institute for Sustainable Humanosphere, Kyoto University omura@rish.kyoto-u.ac.jp RBSP SWG Meeting, APL, May 16-17,
More informationTime History of Events and Macroscale Interactions during Substorms observations of a series of hot flow anomaly events
JOURNAL OF GEOPHYSICAL RESEARCH, VOL. 115,, doi:10.1029/2009ja015180, 2010 Time History of Events and Macroscale Interactions during Substorms observations of a series of hot flow anomaly events H. Zhang,
More informationTHEMIS observations of a hot flow anomaly: Solar wind, magnetosheath, and ground-based measurements
Click Here for Full Article GEOPHYSICAL RESEARCH LETTERS, VOL. 35, L17S03, doi:10.1029/2008gl033475, 2008 THEMIS observations of a hot flow anomaly: Solar wind, magnetosheath, and ground-based measurements
More informationMotion of ions reflected off quasi-parallel shock waves in the presence of large-amplitude magnetic field fluctuations
Astron. Astrophys. 330, 381 388 (1998) ASTRONOMY AND ASTROPHYSICS Motion of ions reflected off quasi-parallel shock waves in the presence of large-amplitude magnetic field fluctuations H.-T. Claßen and
More informationTwo-dimensional hybrid simulations of filamentary structures. and kinetic slow waves downstream of a quasi-parallel shock
Two-dimensional hybrid simulations of filamentary structures and kinetic slow waves downstream of a quasi-parallel shock Yufei Hao 1,2,3, Quanming Lu 1,3, Xinliang Gao 1,3, Huanyu Wang 1,3, Dejin Wu 4,
More informationCoherent and continuous radio emission from Magnetic Chemically Peculiar stars
Coherent and continuous radio emission from Magnetic Chemically Peculiar stars C. Trigilio 1 P. Leto 1, G. Umana 1, C.Buemi 1, F.Leone 2 1 INAF-OACT, 2 UNICT Magnetic Chemically Peculiar stars MS B-A type
More informationLinear and non-linear evolution of the gyroresonance instability in Cosmic Rays
Linear and non-linear evolution of the gyroresonance instability in Cosmic Rays DESY Summer Student Programme, 2016 Olga Lebiga Taras Shevchenko National University of Kyiv, Ukraine Supervisors Reinaldo
More informationPlasma waves in the fluid picture II
Plasma waves in the fluid picture II Parallel electromagnetic waves Perpendicular electromagnetic waves Whistler mode waves Cut-off frequencies Resonance (gyro) frequencies Ordinary and extra-ordinary
More informationEFFECT OF ION CYCLOTRON HEATING ON FAST ION TRANSPORT AND PLASMA ROTATION IN TOKAMAKS
EFFECT OF ION CYCLOTRON HEATING ON FAST ION TRANSPORT AND PLASMA ROTATION IN TOKAMAKS by V.S. Chan, S.C. Chiu, and Y.A. Omelchenko Presented at the American Physical Society Division of Plasma Physics
More informationThe Physics of Field-Aligned Currents
The Physics of Field-Aligned Currents Andrew N. Wright UNIVERSITY OF ST ANDREWS Magnetospheric Current Circuit There is a rich structure of currents flowing parallel (j ) and perpendicular (j ) to the
More informationKinetic Turbulence in the Terrestrial Magnetosheath: Cluster. Observations
1 2 Kinetic Turbulence in the Terrestrial Magnetosheath: Cluster Observations 3 4 5 S. Y. Huang 1, F. Sahraoui 2, X. H. Deng 1,3, J. S. He 4, Z. G. Yuan 1, M. Zhou 3, Y. Pang 3, H. S. Fu 5 6 1 School of
More information