Search Publications
Vlasov simulation of electrostatic solitary structures in multi-component plasmas
Goldstein, Melvyn L.; Umeda, Takayuki; Pickett, Jolene S. +1 more
Electrostatic solitary structures have been observed in the Earth's magnetosheath by the Cluster spacecraft. Recent theoretical work has suggested that these solitary structures are modeled by electron acoustic solitary waves existing in a four-component plasma system consisting of core electrons, two counter-streaming electron beams, and one spec…
A two-fluid model of the bifurcated current sheet
Yoon, Peter H.; Janaki, M. S.; Dasgupta, Brahmananda
Recent satellite observations show that current sheets in the space plasma environment are often characterized by bifurcated structures. The majority of the available models of the bifurcated current sheet in the literature are based upon equilibrium Vlasov-Maxwell kinetic theory. While in principle, kinetic models are more fundamental, investigat…
Cassini observation of Jovian anomalous continuum radiation
Schippers, P.; Gurnett, D. A.; Hospodarsky, G. B. +4 more
Jovian anomalous continuum is a narrowband electromagnetic radiation near 10 kHz that can escape from Jupiter's magnetosphere to interplanetary space. One possible source mechanism is the magnetosheath re-radiation of the Jovian low frequency radio emissions such as the quasiperiodic (QP) radio emissions, broadband kilometric radiation (bKOM) and …
Substorm-like magnetospheric response to a discontinuity in the Bx component of interplanetary magnetic field
Carlson, C. W.; Angelopoulos, V.; Auster, H. -U. +4 more
We examined the magnetospheric magnetic field and plasma responses to an encounter of a discontinuity in the Bx component of interplanetary magnetic field (IMF). The striking variations of simultaneous solar wind dynamic pressure and IMF-Bz were not observed. Furthermore, we found that this IMF-Bx discontinuity was…
Effect of photo-dissociation on the spreading of OH and O clouds in Saturn's inner magnetosphere
Morioka, Akira; Tsuchiya, Fuminori; Misawa, Hiroaki +3 more
We examine the contribution of photo-dissociation under quiet solar conditions to the global OH and O distributions in Saturn's inner magnetosphere by performing a Monte Carlo simulation. We first calculate the H2O distribution generated by H2O sources, namely Enceladus' cryo-volcanic plumes, satellite sputtering, and E ring …
Dayside and nightside segments of a polar arc: The particle characteristics
Parks, G. K.; Zhang, Y.; Lee, J. -J. +8 more
Using multiple satellites and a ground-based radar network, the physical characteristics of a polar arc and its evolution are investigated under quiet solar wind conditions. The average electron energy is higher at the near-midnight segment than at the sunward extension of the polar arc. Both polar arc segments are positioned primarily on closed m…
Plasma particle simulations on stray photoelectron current flows around a spacecraft
Miyake, Y.; Usui, H.; Nakashima, H. +1 more
In tenuous space plasmas, photoelectron flows produce complex current paths among multiple conducting elements of spacecraft, which may influence the current-voltage characteristics of double-probe electric field sensors. We performed full-particle simulations on this effect by assuming a sensor configuration that is typical of recent designs like…
Observations of quasi-perpendicular propagating electromagnetic waves near the ionopause current sheet of Venus
Luhmann, J. G.; Russell, C. T.; Wei, H. Y. +3 more
Due to the lack of an intrinsic magnetic field at Venus, the Venus ionosphere acts as the obstacle to the incoming solar wind flow. Induced currents flowing on the ionopause resist the penetration of the solar wind magnetic fields into the ionosphere. The Venus Express magnetometer occasionally observes plasma waves near the ionopause. These waves…
Correction to “A statistical comparison of solar wind propagation delays derived from multispacecraft techniques”
Wild, J. A.; Case, N. A.
Abstract Available from http://www.agu.org
Correction to “Cassini observations of ion and electron beams at Saturn and their relationship to infrared auroral arcs”
Coates, A. J.; Brown, R. H.; Baines, K. H. +14 more
Abstract Available from http://www.agu.org