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Effect of Ion Dynamics on the Evolution of Electron Phase-space Holes
Ion dynamics Electron holes Transverse instability Magnetized plasma
2013/10/3
The evolution of two-dimensional (2D) electron phase-space holes (electron holes) has been previously investigated with electrostatic Particle-in-Cell (PIC) simulations, which neglect ion dynamics. Th...
Gas Gain Measurements from a Negative Ion TPC X-ray Polarimeter
Gas Gain Measurements Negative TPC X-ray Polarimeter
2011/10/9
Gas-based time projection chambers (TPCs) have been shown to be highly sensitive X-ray polarimeters having excellent quantum efficiency while at the same time achieving large modulation factors. To ob...
High-ion absorption in the proximate damped Lyman-alpha system toward Q0841+129
quasars: absorption lines – galaxies: high-redshift – galaxies: halos – galaxies: ISM
2011/10/8
We present VLT/UVES spectroscopy of the quasar Q0841+129, whose spectrum shows a proximate damped Lyman-alpha (PDLA) absorber at z=2.47621 and a proximate sub-DLA at z=2.50620, both lying close in red...
Kolmogorov versus Iroshnikov-Kraichnan spectra: Consequences for ion heating in the solar wind
Kolmogorov Iroshnikov-Kraichnan spectra the solar wind
2011/9/9
Whether the phenomenology governing MHD turbulence is Kolmogorov or Iroshnikov-Kraichnan (IK) remains an open question, theoretically as well as observationally. The ion heating profile observed in th...
Distinctive features of ion-acoustic solitons in EPI super-dense magneto-plasmas with degenerate electrons and positrons
Solar and Stellar Astrophysics (astro-ph.SR) Plasma Physics (physics.plasm-ph)
2010/12/23
Using the extended Poincar\'{e}-Lighthill-Kuo (PLK) reductive perturbation method to study the small-amplitude ion acoustic solitary wave (IASW) dynamics (propagation and interaction), it is shown tha...
Analysis of Ion Charge States in Solar Wind and CMEs
Solar wind and CMEs Fe ion charge states dielectronic recombination
2010/9/16
We discuss needs in dielectronic recombination data motivated by recent work directed at a quantitative understanding of ion charge states of various elements observed in situ in the solar wind and CM...
Search for the shape resonance in the negative ion of hydrogen in astrophysical plasmas
shape resonance astrophysical plasmas negative ion of hydrogen
2009/6/4
Search for the shape resonance in the negative ion of hydrogen in astrophysical plasmas。
Anisotropic unstable ion distribution functions downstream of the solar wind termination shock
ion plasma state solar wind
2009/5/27
In this paper we demonstrate that solar wind ions, passing over the quasiperpendicular portion of the solar wind MHD termination shock, unavoidably develop strongly pronounced pitchangle anisotropies....
Analysis of Ion Charge States in Solar Wind and CMEs
Solar wind and CMEs Fe ion charge states dielectronic recombination
2009/5/6
We discuss needs in dielectronic recombination data motivated
by recent work directed at a quantitative understanding of ion charge
states of various elements observed in situ in the solar wind and ...