搜索结果: 1-15 共查到“天文学 PLASMA”相关记录34条 . 查询时间(0.171 秒)
日冕物质抛射(CME)是灾害性空间天气的主要驱动源，如何针对特定的CME事件, 了解其在日冕和行星际空间的传播特性及演化过程，预测近地空间太阳风状态的变化，是空间天气研究领域的重要内容，同时受到国内外学者的广泛关注，近年来，在CME传播特性的观测和数值模拟研究中取得了大量进展。
Ionospheric disturbances generated by different natural processes and by human activity in Earth plasma environment
ionosphere Earth plasma environment
2015/9/14
The magnetosphere-ionosphere-thermosphere subsystem is strongly coupled via the electric field, particle precipitation, heat flows and small scale interaction. Satellites in situ measurements and grou...
Assessment of space plasma effectsfor satellite applications:Working Group 2 overview
effectsfor Space plasma
2015/9/14
An important part of the tasks of Working Group 2 of the COST Action 271 «Assessment of space plasma effect for satellites applications» is the assessment of novel data sources for informati...
Space plasma effects on Earth-spaceand satellite-to-satellite communications:Working Group 4 overview
Earth-spaceand satellite-to-satellite Space plasma
2015/9/14
This paper summarizes the the activities carried out by Working Group 4 of COST 271 Action. The structure of this Working Group included four Working packages that were dealing with different aspects ...
A spectral code for non-equilibrium plasma and its applications
Spectrum Nonequilibrium plasma The program code
2014/12/9
The spectral code for non-equilibrium plasma has been developed based on the updated atomic database. The first application is for winds from super stellar clusters for which a self-consistent physica...
Multi-moment advection scheme in three dimension for Vlasov simulations of magnetized plasma
Advection equation Conservative form Multi-moment Vlasov simulations Magnetized plasma
2012/2/21
We present an extension of the multi-moment advection scheme (Minoshima et al., 2011, J. Comput. Phys.) to the three-dimensional case, for full electromagnetic Vlasov simulations of magnetized plasma....
Gravitational instability of the primordial plasma: anisotropic evolution of structure seeds
Gravitational instability primordial plasma: anisotropic evolution
2011/10/10
We study how the presence of a background magnetic field, of intensity compatible with current observation constraints, affects the linear evolution of cosmological density perturbations at scales bel...
Suzaku Discovery of Twin Thermal Plasma from the Tornado Nebula
ISM: individual (G357.7− 0.1)—ISM: jets and outfl ows—X-ray:ISM
2011/9/28
The Tornado nebula (G357.7-0.1) is a mysterious radio source with bright "head" and faint "tail" located in the direction of the Galactic center (GC) region. We here report the discovery of two diffus...
Answers to some salient questions, which arise in quantum plasmas, are given. Starting from the Schr\"{o}dinger equation for a single particle it is demonstrated how the Wigner-Moyal equation can be ...
Orders of Fermi- and Plasma-Accelerations of Cosmic Rays
Fermi- and Plasma-Accelerations Cosmic Rays
2011/1/11
The generic acceleration model for ultra high energy cosmic rays, which has been introduced in {\tt 1006.5708 [astro-ph.HE]}, suggests various types of electromagnetic interactions between cosmic char...
Coronal Loops: Observations and Modeling of Confined Plasma
Coronal Loops Observations Confined Plasma
2011/1/13
Coronal loops are the building blocks of the X-ray bright solar corona. They owe their brightness to the dense confined plasma, and this review focuses on loops mostly as structures confining plasma. ...
Alfven seismic vibrations of crustal solid-state plasma in quaking paramagnetic neutron star
Alfven seismic vibrations paramagnetic neutron star
2010/11/11
Magneto-solid-mechanical model of two-component, core-crust, paramagnetic neutron star responding to quake-induced perturbation by differentially rotational, torsional, oscillations of crustal electro...
Damping of longitudinal magneto-acoustic oscillations in slowly varying coronal plasma
magnetohydrodynamics(MHD) - plasmas - Sun corona - waves
2010/11/15
We investigate the propagation of MHD waves in a homogenous, magnetized plasma in a weakly
stratified atmosphere, representing hot coronal loops. In most of earlier studies a time-independent equilib...
Magnetic field amplification and electron acceleration to near-energy equipartition with ions by a mildly relativistic quasi-parallel plasma protoshock
High Energy Astrophysical Phenomena (astro-ph.HE)
2010/12/24
The prompt emissions of gamma-ray bursts are seeded by radiating ultrarelativistic electrons. Internal shocks propagating through a jet launched by a stellar implosion, are expected to amplify the mag...
Analysis of Plasma and Field Conditions during Some Intensely Geoeffective Transient Solar/Interplanetary Disturbances of Solar Cycle 23
Earth geomagnetic storm Sun'solar and wind magnetosphere coupling
2010/9/17
The problem of solar wind–magnetosphere coupling is investigated for intense geomagnetic storms (Dst ≤ −100 nT) that occurred during solar cycle 23. For this purpose interplanetary plasma and fi...