PPT-Diffusive Shock Acceleration Simulations of Radio Relics

Tom Jones Hyesung Kang PNU Korea Dongsu Ryu CNU Korea 8302012 1 ICM Theory and Computation Ann Arbor 8302012 ICM Theory and Computation Ann Arbor 2 The Context Several dozen known diffuse cluster radio . Acceleration Mechanisms. 1. Acceleration Mechanisms. There is clear observational evidence that hadrons and electrons are accelerated to extreme energies by astrophysical objects. direct evidence: charged cosmic rays. Part 2. Aliasing. Spurious Trend Removal. Introduction. Aliasing can cause up to 20 dB error in SRS plots. But a massive amount of ultra-high-frequency energy is required for this to happen. Example: near-field measurement of linear shaped charge. Acceleration and . Transport Link of the Chain. J. . Giacalone. , University of Arizona. Mihir. Desai, . SWRI. Gang Li, University of Alabama. Nathan . Schwadron. , . UNH. (and others … ). “Sun to Ice” kick-off meeting – Predictive Science Inc., San Diego, Nov 2, 2011. (Fermi acceleration at shock: most standard, nice powerlaw, few free parameters). main . signatures to . be determined: . E. min . , . E. max. [. Ã. timescale . t. acc. (E. ) ], . spectral slope . GeV. Photon Delay. Kunihito. . Ioka. (KEK). Contents. Very High Lorentz Factor (VHLF). G. max. can be up to ~10. 6. (> . G. max,. conv. ~10. 3. ). Internal Shock Synchrotron. ⇒ Power-law component over >7 decades. & Time History Synthesis. By Tom Irvine. 83rd Shock and Vibration Symposium 2012. This presentation is sponsored by. NASA Engineering & Safety Center (NESC. ). Dynamic Concepts, Inc.. . Huntsville, Alabama. SRS Synthesis. 1. . Wavelets. 2. Damped Sinusoids. Wavelet Synthesis. Goal: . Synthesis acceleration time history that can be used for a shaker test or for a numerical simulation. 3. Shaker Shock. Unit 42. Vibrationdata. Accidental Drop Shock. Half-Sine Shock on Drop Tower. Half-Sine Shock on Shaker Table. Waveform Reconstructions via Wavelets. The Drop Seen Around the World. Vibrationdata. First person to buy an . Sources. 1. Sources of high-energy particles. We now have clear observational diagnostics for particle acceleration. synchrotron radiation (radio, sometimes X-ray). inverse Compton scattering (X-ray, . THREE PHASES OF PARTICLE ACCELERATION. FLARE IMPULSIVE PHASE (. FIRST. ) FLARE LATE PHASE (. SECOND. ) . CME. SHOCK. IMPULSIVE SEP EVENT. GRADUAL SEP EVENT. FLARE. CME SHOCK. NOTE: NO Flare. NO/very little scattering except near shock. Advancements in Scientific Computing. Qi. . Hu. , Nail A. . Gumerov. , . Ramani. . Duraiswami. Institute for Advanced Computer Studies and Department of Computer Science. Monica . Syal. , . J. . Gordon . Siming. Liu. University of Glasgow. Collaborators. Vahe. ’ . Petrosian. , . Yanwei. Jiang: Stanford University. Zhonghui. Fan: Yunnan University. Oct. 2008 Krakow, Poland . Outline. I: Observations: Distribution. Summary Talk. Craig . Sarazin. University of Virginia. Observations of radio halos, mini-halos and . relics – review - . Tiziana. . Venturi. Nice overview: . p. roperties of halos, relics, mini-halos. +. Pickup Ions at Quasi-perpendicular Shocks. M. J. Starkey. 1,2. , S. A. Fuselier. 2,1. , M. I. Desai. 2,1. , S. J. Schwartz. 3. , C. T. Russell. 4. , H. Wei. 4. , H. Madanian. 2. , J. Mukherjee. 2.