Strong Pitch Angle Scattering and the Kennel-Petschek Limit

Slides:

Advertisements

Similar presentations

RHESSI Studies of Solar Flare Hard X-Ray Polarization Mark L. McConnell 1, David M. Smith 2, A. Gordon Emslie 4, Martin Fivian 3, Gordon J. Hurford 3,

Advertisements

Investigating the Origin of the Long-Duration High- Energy Gamma-Ray Flares Gerry Share, Jim Ryan and Ron Murphy (in absentia) Steering Committee Overseer.

The Johns Hopkins University Applied Physics Laboratory SHINE 2005, July 11-15, 2005 Transient Shocks and Associated Energetic Particle Events Observed.

THREE-DIMENSIONAL ANISOTROPIC TRANSPORT OF SOLAR ENERGETIC PARTICLES IN THE INNER HELIOSPHERE CRISM- 2011, Montpellier, 27 June – 1 July, Collaborators:

School of Physics & Astronomy Simulating the spectra of Quasars: A simple disk-wind model for BALQSOs Nick Higginbottom (Southampton University) Christian.

13. Flare Classification in the Era of Global Coverage of the Sun A. Vourlidas, C. Cohen The GOES SXR characterization of solar flares has been used widely.

U N C L A S S I F I E D Operated by the Los Alamos National Security, LLC for the DOE/NNSA Direct measurements of chorus wave effects on electrons in the.

Electron Acceleration in the Van Allen Radiation Belts by Fast Magnetosonic Waves Richard B. Horne 1 R. M. Thorne 2, S. A. Glauert 1, N. P. Meredith 1.

Influence of EMIC Waves on Radiation Belt Dynamics T. Kersten, R. B. Horne, N. P. Meredith, S. A. Glauert ESWW11 Liège, 17-21/11/2014 British Antarctic.

Martian Pick-up Ions (and foreshock): Solar-Cycle and Seasonal Variation M. Yamauchi(1); T. Hara(2); R. Lundin(3); E. Dubinin(4); A. Fedorov(5); R.A. Frahm(6);

Weaker Solar Wind Over the Protracted Solar Minimum Dave McComas Southwest Research Institute San Antonio, TX With input from and thanks to Heather Elliott,

Radiation Belt Loss at the Magnetopause T. G. Onsager, J. C. Green, H. J. Singer, G. D. Reeves, S. Bourdarie Suggest a pitch-angle dependence of magnetopause.

Auxiliary slides. ISEE-1 ISEE-2 ISEE-1 B Locus of  = 90 degree pitch angles Will plot as a sinusoid on a latitude/longitude projection of the unit.

Five Spacecraft Observations of Oppositely Directed Exhaust Jets from a Magnetic Reconnection X-line Extending > 4.3 x 10 6 km in the Solar Wind Gosling.

RHESSI 2003 October 28 Time Histories Falling fluxes following the peak Nuclear/511 keV line flux delayed relative to bremsstrahlung Fit to 511 keV line.

OpenGGCM Simulation vs THEMIS Observations in an Dayside Event Wenhui Li and Joachim Raeder University of New Hampshire Marit Øieroset University of California,

Coronal IP Shocks Nat Gopalswamy NASA/GSFC Elmau CME Workshop, 2003 February 7 Plenary talk Sun Earth.

CISM Radiation Belt Models CMIT Mary Hudson CISM Seminar Nov 06.

Lecture 3 Introduction to Magnetic Storms. An isolated substorm is caused by a brief (30-60 min) pulse of southward IMF. Magnetospheric storms are large,

In-situ Observations of Collisionless Reconnection in the Magnetosphere Tai Phan (UC Berkeley) 1.Basic signatures of reconnection 2.Topics: a.Bursty (explosive)

Radiation Belt Electron Transport & Energization inner belt outer belt Slot region Mary K. Hudson, Magnetospheric Thrust Participants.

Hybrid simulations of parallel and oblique electromagnetic alpha/proton instabilities in the solar wind Q. M. Lu School of Earth and Space Science, Univ.

Center to Limb Variation of Hard X-Ray Spectra from RHESSI J.McTiernan (SSL/UCB) ABSTRACT: We use the RHESSI flare database to measure the center to limb.

Center to Limb Variation of Hard X-Ray Spectra from RHESSI J. McTiernan SSL/UCB.

SSL UC Berkeley 2010 June ACE/SOHO/STEREO/Wind Workshop Interplanetary Propagation of Solar Impulsive Energetic Electrons Linghua Wang, Bob Lin and S ä.

Magnetospheric Morphology Prepared by Prajwal Kulkarni and Naoshin Haque Stanford University, Stanford, CA IHY Workshop on Advancing VLF through the Global.

Magnetic Reconnection Rate and RHESSI Hard X-Ray Imaging Spectroscopy of Well Resolved X-class Flares Yan Xu, Ju Jing, Wenda Cao, and Haimin Wang.

Magnetic Field and Heating of the Corona Valentyna Abramenko and Vasyl Yurchyshyn Big Bear Solar Observatory.

Solar Origin of energetic particle events Near-relativistic impulsive electron events observed at 1 AU M. Pick, D. Maia, S.J. Wang, A. Lecacheux, D. Haggery,

Tuija I. Pulkkinen Finnish Meteorological Institute Helsinki, Finland

Comparisons of Inner Radiation Belt Formation in Planetary Magnetospheres Richard B Horne British Antarctic Survey Cambridge Invited.

L ONG - TERM VERB CODE SIMULATIONS OF ULTRA - RELATIVISTIC ELECTIONS AND COMPARISON WITH V AN A LLEN P ROBES MEASUREMENTS Drozdov A. Y. 1,2, Shprits Y.

Observation of Prompt Energization to ultra relativistic energies by the March 2015 interplanetary shock Shri Kanekal, Dan Baker, Bern Blake, Sam Califf,

 Introduction  Surface Albedo  Albedo on different surfaces  Seasonal change in albedo  Aerosol radiative forcing  Spectrometer (measure the surface.

Dynamics of the Radiation Belts & the Ring Current Ioannis A. Daglis Institute for Space Applications Athens.

Localized Thermospheric Energy Deposition Observed by DMSP Spacecraft D. J. Knipp 1,2, 1 Unversity of Colorado, Boulder, CO, USA 2 High Altitude Observatory,

Initial Measurements of O-ion and He-ion Decay Rates Observed from the Van Allen Probes RBSPICE Instrument Andrew Gerrard, Louis Lanzerotti et al. Center.

Interaction of Cosmic-Rays with the Solar System Bodies as seen by Fermi LAT Monica Brigida Bari University For the Fermi LAT Collaboration.

Intense Poynting flux at very high latitudes during magnetic storms: GITM simulation results Yue Deng 1 Cheng Sheng 1, Manqi Shi 1, Yanshi Huang 2, Cheryl.

Some aspects of reaction mechanism study in collisions induced by Radioactive Beams Alessia Di Pietro.

Pre-accelerated seed populations of energetic particles in the heliosphere N. A. Schwadron* and M. Desai Southwest Research Institute *Also, Boston University.

Dim ENA Emissions from 1-30 keV D.J. McComas, P. Valek, J.L. Burch, and C.J. Pollock Southwest Research Institute San Antonio, TX H.O. Funsten, R.M. Skoug,

Simulation Study of Magnetic Reconnection in the Magnetotail and Solar Corona Zhi-Wei Ma Zhejiang University & Institute of Plasma Physics Beijing,

Proposed project on lightning-induced electron precipitation (LEP) Lightning produces VLF waves that propagate globally in the Earth- ionosphere waveguide.

17th Cluster workshop Uppsala, Sweden , May 12-15, 2009

UV Spectroscopy of CME Currrent Sheets John Raymond Angela Ciaravella Silvio Giordano Dave Webb.

WSM Whole Sun Month Sarah Gibson If the Sun is so quiet, why is the Earth still ringing?

Microwave emission from the trapped and precipitated electrons in solar bursts J. E. R. Costa and A. C. Rosal1 2005, A&A, 436, 347.

Storm-dependent Radiation Belt Dynamics Mei-Ching Fok NASA Goddard Space Flight Center, USA Richard Horne, Nigel Meredith, Sarah Glauert British Antarctic.

Field-aligned currents associated with interchange injections at Saturn Anna DeJong, James Burch and Roberto Livi Southwest Research Institute.

亚洲的位置和范围吉林省白城市洮北区教师进修学校郑春艳. Q 宠宝贝神奇之旅 —— 亚洲 Q 宠快递你在网上拍的一套物理实验器材到了。 Q 宠宝贝打电话给你：你好，我是快递员，有你的邮件，你的收货地址上面写的是学校地址，现在学校放假了，能把你家的具体位置告诉我吗？请向快递员描述自己家的详细位置！

二维电磁模型基本方程与无量纲化基本方程. 无量纲化方程化为二维时的方程时间上利用蛙跳格式网格划分.

Lecture 15 Modeling the Inner Magnetosphere. The Inner Magnetosphere The inner magnetosphere includes the ring current made up of electrons and ions in.

RAPID calibrations in the radiation belts Elena Kronberg 1 and Patrick W. Daly 1 (1)Max-Planck-Institute for Solar System Research, Katlenburg-Lindau,

Richard Thorne / UCLA Physical Processes Responsible for Relativistic Electron Variability in the Outer Radiation Zone over the Solar Cycle 1 Outline 2.

Modulation of chorus wave intensity by ULF waves from Van Allen Probes Observation Lunjin Chen 1, Zhiyang Xia 1, Lei Dai 2 1 Physics Dept., The University.

1. What controls the occurrence of reconnection. 2

Plasma Wave Excitation Regions in the Earth’s Global Magnetosphere

VNC: Application of Physics and Systems Science methodologies to Forecasting of the Radiation Belt Electron Environment S. N. Walker1, M. A. Balikhin1,

George C. Ho1, David Lario1, Robert B. Decker1, Mihir I. Desai2,

Two Years of NoRH and RHESSI Observations: What Have We Learned

Suprathermal Particle Density Variations over the Solar Cycle

Karl-Ludwig Klein & Rositsa Miteva

Extreme Events In The Earth’s Electron Radiation Belts

MDI Global Field & Solar Wind

Heavy-Ion Acceleration and Self-Generated Waves in Coronal Shocks

Jakobus le Roux (1,2) & Gary Webb (1)

Richard B. Horne British Antarctic Survey Cambridge UK

M. Yamauchi1, A. Schillings1,2, R. Slapak3, H. Nilsson1, I. Dandouras3

Presentation transcript:

Strong Pitch Angle Scattering and the Kennel-Petschek Limit D. N. Baker LASP – CU/Boulder

The Kennel-Petschek Limit In 1966 paper, for electrons: ER = E0 W/w (1 - w/W)2 E0 = B2/8pn J*(> ER)= [(1-E0/ER)/(A-E0/ER)] x 1010B lnG/l J* (> 40 keV) ~ 7 x 1010/L4 (cm-2 s-1)

Electron Flux and Riometer Comparisons [Baker et al., GRL, 1979]

Pitch Angle Evolution

Flux and Riometer Comparison

Summary of Flux Limits

Peak Fluxes vs. Riometer Intensity

Local Times of Strong Diffusion

Solar Wind Speed Dependence