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13篇 您的检索式:作者名="Mewaldt"
    题名 作者 年代 出处 被引量
1A twin CME scenario for ground level enhancement events显示文摘LI Gang MOORE R MEWALDT R A 2012Space Science Reviews2012,171,14:1
2Proton,helium,and electron spectra during the large solar particle events of October-November 2003显示文摘Mewaldt R Cohen C.M.S Labrador A.W 0,,:1
3Effects of diazepam and scopolam ine on storage,retrieval and organizational processes in memory 显示文摘Ghoneim M M Mewaldt S P 1975Psychopharmacologia1975,44,:1
4Behavioral and physiological correlates of stress related to examination performance in college chemistry students显示文摘Bardi M Koone T Mewaldt S 0,,05:1
5Variability of spectra in large solar energeticparticle events显示文摘C.M.S. Cohen R.A. Mewaldt A.C. Cummings R.A. Leske E.C. Stone T.T. von Rosenvinge M.E. Wiedenbeck 2003Advances in Space Research2003,,12:1
6Benzodiazepines and human memory:a review显示文摘Ghoneim MM Mewaldt SP 1990Anesthesiology1990,72,5:1
7Benzodiazepines and human memory:a review显示文摘Ghoneim MM Mewaldt SP 1990Anesthesiology1990,72,5:1
8The Advanced Composition Explorer显示文摘E.C. Stone A.M. Frandsen R.A. Mewaldt E.R. Christian D. Margolies J.F. Ormes F. Snow 1998Space Science Reviews (-)1998,,1:1
9The NOAA Real-Time Solar-Wind (RTSW) System using ACE Data显示文摘R.D. Zwickl K.A. Doggett S. Sahm W.P. Barrett R.N. Grubb T.R. Detman V.J. Raben C.W. Smith P. Riley R.E. Gold R.A. Mewaldt T. Maruyama 1998Space Science Reviews (-)1998,,1:1
10The Low-Energy Telescope (LET) and SEP Central Electronics for the STEREO Mission显示文摘R. A. Mewaldt C. M. S. Cohen W. R. Cook A. C. Cummings A. J. Davis S. Geier B. Kecman J. Klemic A. W. Labrador R. A. Leske H. Miyasaka V. Nguyen R. C. Ogliore E. C. Stone R. G. Radocinski M. E. Wiedenbeck J. Hawk S. Shuman T. T. Rosenvinge K. Wortman 2008Space Science Reviews2008,,1:1
11Solar ele- mental composition based on studies of solar energetic particles 显示文摘Cohen C M S Mewaldt R A Leske R A 2007Space Science Reviews2007,130,1234:1
12The advanced composition explorer显示文摘Stone E C Frandsen A M Mewaldt R A 1998Space Science Reviews1998,86,1:1
13Probing shock geometry via the charge to mass ratio dependence of heavy ion spectra from multiple spacecraft observations of the 2013 November 4 event显示文摘In large Solar Energetic Particle(SEP) events, ions can be accelerated at coronal mass ejection(CME)-driven shocks to very high energies. The spectra of heavy ions in many large SEP events show features such as roll-overs or spectral breaks. In some events when the spectra are plotted in terms of energy/nucleon, they can be shifted relative to each other to make the spectral breaks align. The amount of shift is charge to mass ratio(Q/A) dependent and varies from event to event. This can be understood if the spectra of heavy ions are organized by the diffusion coefficients(Cohen et al. 2005). In the work of Li et al.(2009), the Q/A dependence of the scaling is related to shock geometry when the CME-driven shock is close to the Sun. For events where multiple in-situ spacecraft observations exist, one may expect that different spacecraft are connected to different portions of the CME-driven shock that have different shock geometries, therefore yielding different Q/A dependence. In this work, we examine one SEP event which occurred on 2013 November 4. We study the Q/A dependence of the energy scaling for heavy ion spectra using helium, oxygen and iron ions. Observations from STEREO-A, STEREO-B and ACE are examined. We find that the scalings are different for different spacecraft. We suggest that this is because ACE, STEREOA and STEREO-B are connected to different parts of the shock that have different shock geometries. Our analysis indicates that studying the Q/A scaling of in-situ particle spectra can serve as a powerful tool to remotely examine the shock geometry for large SEP events.Lulu Zhao Gang Li Glenn M. Mason Christina Cohen Richard Mewaldt Mihir Desai Rob Ebert Maher Al-Dayeh 2016Research in Astronomy and Astrophysics2016,16,12:0
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