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PPT
PPT

... • If displacement is occurred at the boundary, the lighter plasma which pushed up by the displacement is lighter than surrounding plasma so that it has a buoyancy then continue to move up. • Denser plasma which pushed down is heavier than surrounding plasma so that it has stronger gravity force then ...
Relaxation of Blazar Induced Pair Beams in Cosmic Voids
Relaxation of Blazar Induced Pair Beams in Cosmic Voids

Current Systems in Planetary Magnetospheres and Ionospheres
Current Systems in Planetary Magnetospheres and Ionospheres

... where E is the ambient electric field, and the so-called “pick-up conductivity” σpickup is proportional to the time rate of addition of new-born ions to the flow, ṅ. 2.1 Planetary Ionospheres and Associated Plasma Domains The solar ultraviolet and X-ray light impinging on a planet’s or moon’s atmos ...
A Rigid-Field Hydrodynamics approach to modelling the
A Rigid-Field Hydrodynamics approach to modelling the

The  on­ quilibrium  ISIS
The  on­ quilibrium  ISIS

... Characteristics of our spectral code  (Ji PhD thesis 2006)   based on the updated atomic data (CHIANTI , APED) the atomic data and the code are  separate                                                                      ...
Response of equatorial-low latitude ionosphere
Response of equatorial-low latitude ionosphere

... the ionospheric current system associated with the second pulse of si-it has the same pattern but opposite sense to that of the first pulse. The current system has been interpreted as the effect of reduced magnteospheric convection due to reduced dynamic pressure of solar wind. One can therefore exp ...
Laboratory Astrophysics: Spectral Analysis of Photoionized Neon
Laboratory Astrophysics: Spectral Analysis of Photoionized Neon

Laboratory Astrophysics: Spectral Analysis  of Photoionized  Neon J ames  MacArthur
Laboratory Astrophysics: Spectral Analysis of Photoionized Neon J ames MacArthur

... depends on the product of the ion and electron densities) and a larger electron velocity increases the energy and collisional frequency. Collisionally ionized plasmas are common in the earth and throughout the universe. Planetary cores, stars, stellar coronae, and black hole accretion disks are just ...
Determination of the levitation limits of dust particles within the
Determination of the levitation limits of dust particles within the

... and the extent of the unstable region near the lower electrode, locating the lower levitation limit for dust particles, in radio frequency (RF) discharges. These results are then compared to current sheath theories. With this, a new, in situ experimental method is provided that can be employed in an ...
On the dimensionally correct kinetic theory of turbulence
On the dimensionally correct kinetic theory of turbulence

... the underlying equations can be readily solved by computational means. This cannot be accomplished unless the foundational nonlinear response functions—which are expressed in terms of formal momentum integrals over the derivatives of the particle distribution functions, and also involve multiple inf ...
MHD seismology as a tool to diagnose the coronae of X
MHD seismology as a tool to diagnose the coronae of X

The Properties of Reconnection Current Sheets in GRMHD
The Properties of Reconnection Current Sheets in GRMHD

... et al. 2015a, b) where we coupled HARM to the radiative transfer algorithm GRay (Chan et al. 2013) and varied the black hole spin, density normalization, observer inclination, initial magnetic field configuration, as well as the electron thermodynamic prescription. From these investigations, we iden ...
EQUATION OF STATE AND OPACITIES FOR HYDROGEN
EQUATION OF STATE AND OPACITIES FOR HYDROGEN

Plasma waves above the ion cyclotron frequency in the solar wind: a
Plasma waves above the ion cyclotron frequency in the solar wind: a

The energetics of relativistic magnetic reconnection: ion
The energetics of relativistic magnetic reconnection: ion

... In all these cases, it is crucial to know the amount of magnetic energy transferred to the particles during a reconnection event, the relative fraction distributed to ions and electrons, as ...
Low-energy charged particle measurement by MAP-PACE onboard SELENE
Low-energy charged particle measurement by MAP-PACE onboard SELENE

... limb of the Moon and the degree of the plasma compression has a regional dependence (Criswell, 1973). It is therefore thought that there is a weak but significant magnetic field anomaly on the surface of the Moon and that this deflects the solar wind particles and varies the degree of compression (L ...
Understanding of the role of magnetic fields: Galactic perspective
Understanding of the role of magnetic fields: Galactic perspective

... be slow, there is a possibility (which has not yet been convincingly refuted) that all simulation related to the interstellar medium, including those of turbulence have significnant errors due to a dramatic disparity between the rates of astrophysical and numerical reconnection. If the reconnection ...
Pickup ions near Mars associated with escaping oxygen atoms
Pickup ions near Mars associated with escaping oxygen atoms

... suggested in this paper that ‘‘the pickup ions detected by SLED should have their origin 5 – 6  104 km upstream of Mars’’ (this is due to the very large gyroradius of a pickup oxygen ion). [4] Pickup ions are created by the ionization of neutrals and are initially almost at rest in comparison with ...
The Salpeter plasma correction for solar fusion reactions
The Salpeter plasma correction for solar fusion reactions

Simultaneous observation of the electron acceleration and ion deceleration
Simultaneous observation of the electron acceleration and ion deceleration

... Y. SAITO et al.: ELECTRON ACCELERATION AND ION DECELERATION OVER LUNAR MAGNETIC ANOMALIES ...
DAS FOCUS Newsletter_APRIL_2015
DAS FOCUS Newsletter_APRIL_2015

Department of Physics and Astronomy University of
Department of Physics and Astronomy University of

スライド 1
スライド 1

Potential for Life on the Terrestrial Planets
Potential for Life on the Terrestrial Planets

... fluxes result in higher exospheric temperatures and more expanded thermosphereexosphere environments and, hence, suffer stronger atmospheric erosion, which may result in the total loss of several hundred bars even if an exoplanet is protected by a “magnetic shield” with its boundary located at one E ...
Double Layer Observations and role in particle acceleration
Double Layer Observations and role in particle acceleration

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Variable Specific Impulse Magnetoplasma Rocket

The Variable Specific Impulse Magnetoplasma Rocket (VASIMR) is an electromagnetic thruster for spacecraft propulsion. It uses radio waves to ionize and heat a propellant, and magnetic fields to accelerate the resulting plasma to generate thrust. It is one of several types of spacecraft electric propulsion systems.The method of heating plasma used in VASIMR was originally developed as a result of research into nuclear fusion. VASIMR is intended to bridge the gap between high-thrust, low-specific impulse propulsion systems and low-thrust, high-specific impulse systems. VASIMR is capable of functioning in either mode. Costa Rican–born American scientist and former NASA astronaut Franklin Chang Díaz created the VASIMR concept and has been working on its development since 1977.VASIMRs units for development and test have been assembled by the Ad Astra Rocket Company, headquartered in the city of Houston, Texas, United States.
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