太空電漿邊界層中非線性擾動與高能粒子的理論與數值模擬研究 (1);Theoretical and Simulation Studies of Nonlinear Disturbances and Energetic Particles in the Boundary Layers of Space Plasmas (1)

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Title:	太空電漿邊界層中非線性擾動與高能粒子的理論與數值模擬研究 (1);Theoretical and Simulation Studies of Nonlinear Disturbances and Energetic Particles in the Boundary Layers of Space Plasmas (1)
Authors:	呂凌霄;陳明桂
Contributors:	國立中央大學太空科學研究所
Keywords:	高能粒子;太空天氣;邊界層;非線性擾動;電子與正離子時空尺度;energetic particles;space weather;boundary layers;nonlinear disturbances;electron-ion scales
Date:	2018-12-19
Issue Date:	2018-12-20 11:26:53 (UTC+8)
Publisher:	科技部
Abstract:	太空中的高能粒子會影響我們的太空天氣，因此一向是太空科學界的重點研究議題之一。這些高能粒子的產生過程，通常與太空電漿中各種邊界層中的非線性擾動，有密切的關係。根據我們初步的判斷，電子與正離子時空尺度的波動或擾動，最容易和粒子交互作用，讓粒子有機會從擾動中獲取能量。反過來，兩團電漿相遇時，也最容易激發出此頻段的擾動波。因此本研究將針對此波段的電漿物理，做理論研究，以幫助我們了解太空中高能粒子的加速過程。我們也將進行數值模擬研究，以進一步驗證我們理論預測是否正確。 ;Since energetic particles can lead to severe space weather, the topic of energetic particles has become an important subject in the space research. The acceleration of these energetic particles is strongly associated with the nonlinear disturbances in the boundary layers of the space plasma. We expect that the electron-ion scale disturbances can easily interact with electrons or ions. As a result, particles will gain kinetic energy from these waves. On the other hand, the injection of plasma can excite waves in the electron-ion scale. The goal of this study is to analyze the characteristics of disturbances in the electron-ion scale. We will then use the numerical simulation to verify our theoretical predictions.
Relation:	財團法人國家實驗研究院科技政策研究與資訊中心
Appears in Collections:	[Graduate Institute of Space Science] Research Project

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