Electron Firehose instability and acceleration of electrons in solar
... 1) Shock Acceleration: There are two types of shock acceleration. The one referred to as ’shock drift acceleration’ involves the shock electric field that reflects and accelerates the particles moving along the shock surface. Since this mechanism is only effective when the shock normal approaches an ...
... 1) Shock Acceleration: There are two types of shock acceleration. The one referred to as ’shock drift acceleration’ involves the shock electric field that reflects and accelerates the particles moving along the shock surface. Since this mechanism is only effective when the shock normal approaches an ...
Power Point slides for Reporter Review
... coupling of different plasma regions with each other. Significant advances in the last 2 years, due to new and continuing observations from FAST, Akebono, IMAGE, Polar, and Cluster as well as ground observations, theory, and numerical modeling. Over 200 papers published in this area since the 2001 I ...
... coupling of different plasma regions with each other. Significant advances in the last 2 years, due to new and continuing observations from FAST, Akebono, IMAGE, Polar, and Cluster as well as ground observations, theory, and numerical modeling. Over 200 papers published in this area since the 2001 I ...
Thermal Bremsstrahlung - Ira-Inaf
... However, a classical treatment is justified in some regimes, and the formulas so obtained have the correct functional dependence for most of the physical parameters. Therefore, we first give a classical treatment and then state the quantum results as corrections (Gaunt factors) to the classical form ...
... However, a classical treatment is justified in some regimes, and the formulas so obtained have the correct functional dependence for most of the physical parameters. Therefore, we first give a classical treatment and then state the quantum results as corrections (Gaunt factors) to the classical form ...
Plasma Seminar, April 13, 2015 "The Magnetized Dusty Plasmas
... • Discussions began in November 2008 at the APS Plasma Meeting • The goal is to study the structural, thermal, and stability properties of a dusty plasma in which the magnetic force on dust is comparable to electrical, gravitational, or interparticle interaction forces. • Its construction was funded ...
... • Discussions began in November 2008 at the APS Plasma Meeting • The goal is to study the structural, thermal, and stability properties of a dusty plasma in which the magnetic force on dust is comparable to electrical, gravitational, or interparticle interaction forces. • Its construction was funded ...
Laboratory Astrophysics: Spectral Analysis of Photoionized Neon
... 1.2, hotter plasmas would have a larger standard deviation in energy). When only photoexcitation is included (no ionizing photons are present in the model) in the middle pane on the left, the higher n transitions like β and γ are more pronounced, since their upper levels (the 1snp He-like levels wit ...
... 1.2, hotter plasmas would have a larger standard deviation in energy). When only photoexcitation is included (no ionizing photons are present in the model) in the middle pane on the left, the higher n transitions like β and γ are more pronounced, since their upper levels (the 1snp He-like levels wit ...
Fusion: A true challenge for an enormous reward
... Fusion of heavier nuclei in stars will occur at higher temperatures. From the formula above, it is immediately clear that a contraction of the star under its own gravity will further raise the central temperature. Fusion in heavy stars will continue to keep the star alive as long as the reactions ar ...
... Fusion of heavier nuclei in stars will occur at higher temperatures. From the formula above, it is immediately clear that a contraction of the star under its own gravity will further raise the central temperature. Fusion in heavy stars will continue to keep the star alive as long as the reactions ar ...
Laboratory Astrophysics: Spectral Analysis of Photoionized Neon J ames MacArthur
... or stellar black hole) accreting mass from its large companion (an 0 or B star - the most luminous types of star). The compact object accretes mass in two ways: stellar wind from the companion a falling on to the compact object, and Roche Lobe overflow. In HMXBs, there is a figure-8 shaped region bo ...
... or stellar black hole) accreting mass from its large companion (an 0 or B star - the most luminous types of star). The compact object accretes mass in two ways: stellar wind from the companion a falling on to the compact object, and Roche Lobe overflow. In HMXBs, there is a figure-8 shaped region bo ...
plasma/tokamak (alex/steve)new - General Atomics Fusion Education
... the same number of charges protons (+) and electrons (–) so that they are electrically neutral. When an electron is stripped away from the atom, an ion is formed, which has a positive charge. This ion will then react to any electrostatic or magnetic fields that it encounters. The free electron is al ...
... the same number of charges protons (+) and electrons (–) so that they are electrically neutral. When an electron is stripped away from the atom, an ion is formed, which has a positive charge. This ion will then react to any electrostatic or magnetic fields that it encounters. The free electron is al ...
Arc Plasma Torch Modeling
... Thermal plasma processes have proven their technological advantage in a wide variety of fields for over 40 years. The features that make thermal plasmas attractive are a high energy density ( ~ 106107 J/m3) that comes with high heat flux density (~ 107-109W/m2), high quenching rate (~ 106-108 K/s), ...
... Thermal plasma processes have proven their technological advantage in a wide variety of fields for over 40 years. The features that make thermal plasmas attractive are a high energy density ( ~ 106107 J/m3) that comes with high heat flux density (~ 107-109W/m2), high quenching rate (~ 106-108 K/s), ...
Oieroset_ARTEMIS_tail_science
... More likely to encounter X-line than in the near-Earth tail Reconnection quasi-steady (unlike near-Earth) → we can study the basic structure of reconnection without the complication of time variability No obstacle for reconnection outflow (unlike near-Earth) Ion heating in reconnection can be studie ...
... More likely to encounter X-line than in the near-Earth tail Reconnection quasi-steady (unlike near-Earth) → we can study the basic structure of reconnection without the complication of time variability No obstacle for reconnection outflow (unlike near-Earth) Ion heating in reconnection can be studie ...
スライド 1
... Why doesn’t RC injection rate saturate? Polar cap potential is known to be saturated for high solar wind electric field. But, the ring current intensity does not show saturation. Neutral line moves closer to the Earth, the volume per unit magnetic flux in the closed field line region is less. Flux t ...
... Why doesn’t RC injection rate saturate? Polar cap potential is known to be saturated for high solar wind electric field. But, the ring current intensity does not show saturation. Neutral line moves closer to the Earth, the volume per unit magnetic flux in the closed field line region is less. Flux t ...
Radio and X-ray signatures of merging neutron stars
... resulting from this current is of order RV=c2 smaller than the external field B0, but has a radial component at the surface. Similarly to the case of the aligned rotator studied by Goldreich & Julian (1969), the strong electric field produced by surface charges will accelerate charges in an attemp ...
... resulting from this current is of order RV=c2 smaller than the external field B0, but has a radial component at the surface. Similarly to the case of the aligned rotator studied by Goldreich & Julian (1969), the strong electric field produced by surface charges will accelerate charges in an attemp ...
Investigation of Hot Cathode and Hollow Anode of Argon Glow
... obtain single probe characteristics. For more details see Hajy (2014). 3. Experimental Results and Discussion Voltage-current characteristics of the discharge were obtained using voltmeter and ammeter. Figure 5 represents an abnormal glow discharge characteristics at pressure of (0.04 and 0.06) mbar ...
... obtain single probe characteristics. For more details see Hajy (2014). 3. Experimental Results and Discussion Voltage-current characteristics of the discharge were obtained using voltmeter and ammeter. Figure 5 represents an abnormal glow discharge characteristics at pressure of (0.04 and 0.06) mbar ...
Properties of a Plasma: Half
... operation this is not apparent since the inside of the bulb is coated with phosphors that absorb the line spectrum of the mercury and emit light of longer wavelengths in a nearly continuous white light spectrum. To operate the fluorescent bulb, connect the bulb to an appropriate 350-400 volt d.c. po ...
... operation this is not apparent since the inside of the bulb is coated with phosphors that absorb the line spectrum of the mercury and emit light of longer wavelengths in a nearly continuous white light spectrum. To operate the fluorescent bulb, connect the bulb to an appropriate 350-400 volt d.c. po ...
Who’s Afraid of a Stellar Superflare? Rachel Osten GSFC
... young stars are known to produce large impulsive transient Xray flares Favata et al. (2005) studied these in the COUP, found hydrodynamically modelled loop lengths consistent with star-disk interaction in some cases Kashyap et al. (2006) superflaring in old active binary systems in globular clusters ...
... young stars are known to produce large impulsive transient Xray flares Favata et al. (2005) studied these in the COUP, found hydrodynamically modelled loop lengths consistent with star-disk interaction in some cases Kashyap et al. (2006) superflaring in old active binary systems in globular clusters ...
Abstract: - Laboratory for Atmospheric and Space Physics
... tension was no longer balanced by the centrifugal force that had been exerted by the rotating cold ...
... tension was no longer balanced by the centrifugal force that had been exerted by the rotating cold ...
Physics of Stars and the Measurement Data: Part III
... not it, because will consider only electro-neutral cell, in which the charge of the nucleus exactly offset by the electronic charge, so the electric field on the cell border is equal to zero. ...
... not it, because will consider only electro-neutral cell, in which the charge of the nucleus exactly offset by the electronic charge, so the electric field on the cell border is equal to zero. ...
The Ionosphere - Stanford Solar Center
... The other main source of variability in the ionosphere comes from charged particles responding to the neutral atmosphere in the thermosphere. The ionosphere responds to the thermospheric winds; they can push the ionosphere along the inclined magnetic field lines to a different altitude. The ionosphe ...
... The other main source of variability in the ionosphere comes from charged particles responding to the neutral atmosphere in the thermosphere. The ionosphere responds to the thermospheric winds; they can push the ionosphere along the inclined magnetic field lines to a different altitude. The ionosphe ...
Development of large area rf ion sources for fusion applications
... to extract a negative ion beam. A two-turn antenna is found to couple more power into the plasma than a half-turn antenna. When operated as a negative ion source at low powers, the source efficiency is found to be high and not to have a strong dependence on gas pressure. An extracted negative ion cu ...
... to extract a negative ion beam. A two-turn antenna is found to couple more power into the plasma than a half-turn antenna. When operated as a negative ion source at low powers, the source efficiency is found to be high and not to have a strong dependence on gas pressure. An extracted negative ion cu ...
On the origin of the fast solar wind in polar coronal funnels
... the height where we reach Parker’s sonic-critical point (at approximately two solar radii according to our model, which corresponds to earlier results by Hollweg (1986)). This is very close to the Sun when compared to the Parker model and also closer than most present fast solar wind models have loc ...
... the height where we reach Parker’s sonic-critical point (at approximately two solar radii according to our model, which corresponds to earlier results by Hollweg (1986)). This is very close to the Sun when compared to the Parker model and also closer than most present fast solar wind models have loc ...
Scattering of Sunlight in Lunar Exosphere Caused by Gravitational
... mechanical, electromagnetic, etc. For example, we can look on the momentum variation Δp as due to absorption or emission of electromagnetic energy. In this case, it was shown previously that the expression of χ , in the particular case of incident radiation on a heterogeneous matter(powder, dust, cl ...
... mechanical, electromagnetic, etc. For example, we can look on the momentum variation Δp as due to absorption or emission of electromagnetic energy. In this case, it was shown previously that the expression of χ , in the particular case of incident radiation on a heterogeneous matter(powder, dust, cl ...
Spheromaks, solar prominences, and Alfvén instability of current
... Observational evidence points to some kind of collisionless reconnection process which similarly feeds on λ gradients and flattens these gradients but at a much faster rate than resistive reconnection. Controversy exists on whether these collisionless processes are continuous or transient; either si ...
... Observational evidence points to some kind of collisionless reconnection process which similarly feeds on λ gradients and flattens these gradients but at a much faster rate than resistive reconnection. Controversy exists on whether these collisionless processes are continuous or transient; either si ...
Twin-Double Layer Structure Producing Tailward Ion
... recommended; in this very crucial area of space plasma physics a multitude of questions remain unresolved. Any new concept is legitimate and the whole scientific community would further test it. Certainly the truth is not subjected to the law of majority. Apparently, we shall not try to criticize th ...
... recommended; in this very crucial area of space plasma physics a multitude of questions remain unresolved. Any new concept is legitimate and the whole scientific community would further test it. Certainly the truth is not subjected to the law of majority. Apparently, we shall not try to criticize th ...
Induction plasma spheroidization of nanometric glass powder for use in cementations materials
... as the pressure increases. The use of a high pressure reduces by ≈70% the SSA and increases by more than 3 times the equivalent diameter (D(3,2)). Despite this trend includes only 2 data points, the difference in the particle size is notable. With the present pressure rise, the large difference in S ...
... as the pressure increases. The use of a high pressure reduces by ≈70% the SSA and increases by more than 3 times the equivalent diameter (D(3,2)). Despite this trend includes only 2 data points, the difference in the particle size is notable. With the present pressure rise, the large difference in S ...
hessdalen a perfect “natural battery”
... interactions among ions become weaker as the plasma sphere grows in size. This might explain why the shape of the Hessdalen lights is neither homogeneous nor well structured. ...
... interactions among ions become weaker as the plasma sphere grows in size. This might explain why the shape of the Hessdalen lights is neither homogeneous nor well structured. ...