Results 41 to 50 of about 835 (185)

Realistic Dispersion of Plasmaspheric Hiss in the Inner Magnetosphere and Its Effect on Wave-induced Electron Scattering Rates [PDF]

The Astrophysical Journal, 2021
Abstract The cold plasma approximation is a common treatment to study wave–particle interactions between plasmaspheric hiss and magnetospheric electrons, which, however, can become a challenge during periods of disturbed geomagnetic activity.
Xin Ma, Xing Cao, Binbin Ni, Qi Zhu, Zheng Xiang   +4 more
openaire   +1 more source

Quantifying hiss-driven energetic electron precipitation: A detailed conjunction event analysis [PDF]

, 2014
We analyze a conjunction event between the Van Allen Probes and the low-altitude Polar Orbiting Environmental Satellite (POES) to quantify hiss-driven energetic electron precipitation.
Abel, Agapitov, B. Ni, Baker, Blake, Bortnik, C. A. Kletzing, Chen, Denton, G. B. Hospodarsky, G. D. Reeves, Glauert, Green, H. E. Spence, J. B. Blake, J. Bortnik, J. C. Green, J. F. Fennell, Kennel, Kletzing, Lam, Li, Lu, Lyons, Mauk, Meredith, Ni, Ni, R. M. Thorne, Rodger, Rodger, S. G. Claudepierre, Shprits, Summers, Thorne, Thorne, W. Li, W. S. Kurth, X. Gu, Xiao, Y. Nishimura   +40 more
core   +3 more sources

Modeling the properties of plasmaspheric hiss: 1. Dependence on chorus wave emission [PDF]

Journal of Geophysical Research: Space Physics, 2012
There is increasing evidence that plasmaspheric hiss is formed by the evolution of a portion of chorus waves that are excited in the plasmatrough and propagate into the plasmasphere. Comparison between the statistical spatial distributions of these two emissions in the morning sector during active times from THEMIS over ∼3 years shows that the two ...
Chen, Lunjin, Bortnik, Joacob, Li, Wen, Thorne, Richard M., Horne, Richard B.   +4 more
openaire   +2 more sources

Resonant scattering of energetic electrons by unusual low-frequency hiss [PDF]

, 2014
We quantify the resonant scattering effects of the unusual low-frequency dawnside plasmaspheric hiss observed on 30 September 2012 by the Van Allen Probes. In contrast to normal (∼100-2000 Hz) hiss emissions, this unusual hiss event contained most of its
Blake, J. B., Bortnik, J., Chen, Lunjin, Claudepierre, S., Fennell, Joseph F., Hospodarsky, G. B., Kletzing, C A., Kurth, W. S., Li, Wen, Ma, Qianli, Ni, Binbin, Reeves, Geoffrey, Spence, Harlan E., Thorne, R. M.   +13 more
core   +2 more sources

Generation of unusually low frequency plasmaspheric hiss [PDF]

, 2014
It has been reported from Van Allen Probe observations that plasmaspheric hiss intensification in the outer plasmasphere, associated with a substorm injection on 30 September 2012, occurred with a peak frequency near 100 Hz, well below the typical ...
Blake, Bortnik, Bortnik, Bortnik, C. A. Kletzing, Chen, Chen, Chen, Church, Draganov, G. B. Hospodarsky, G. D. Reeves, Green, H. E. Spence, Hayakawa, Horne, Huang, J. B. Blake, J. F. Fennell, Jacob Bortnik, Kimura, Kletzing, Li, Lunjin Chen, Mauk, Meredith, Meredith, Ni, Richard B. Horne, Richard M. Thorne, Russell, Smith, Solomon, Sonwalkar, Spence, Summers, Thorne, Thorne, Tsurutani, Tsurutani, Tsurutani, W. S. Kurth, Wen Li   +42 more
core   +2 more sources

Low Frequency Plasmaspheric Hiss Wave Activity Parameterized by Plasmapause Location: Models and Simulations

Journal of Geophysical Research: Space Physics, 2022
AbstractPlasmaspheric hiss waves are a dominant source of scattering for keV‐MeV radiation belt electrons within the plasmasphere. Previous simulation and modeling work concerning hiss waves has often incorporated them via particle‐based parameterizations (e.g., L‐shell). However, recent work has shown that not only is hiss wave power loosely dependent
A. A. Saikin, A. Y. Drozdov, D. M. Malaspina   +2 more
openaire   +1 more source

Temporal variability of quasi-linear pitch-angle diffusion

Frontiers in Astronomy and Space Sciences, 2022
Kinetic wave-particle interactions in Earth’s outer radiation belt energize and scatter high-energy electrons, playing an important role in the dynamic variation of the extent and intensity of the outer belt.
Clare E. J. Watt, Hayley J. Allison, Sarah N. Bentley, Rhys L. Thompson, I. Jonathan Rae, Oliver Allanson, Nigel P. Meredith, Johnathan P. J. Ross, Sarah A. Glauert, Richard B. Horne, Shuai Zhang, Kyle R. Murphy, Kyle R. Murphy, Dovilė Rasinskaitė, Shannon Killey   +14 more
doaj   +1 more source

Plasmatrough exohiss waves observed by Van Allen Probes: Evidence for leakage from plasmasphere and resonant scattering of radiation belt electrons [PDF]

, 2015
Exohiss waves are whistler mode hiss observed in the plasmatrough region. We present a case study of exohiss waves and the corresponding background plasma distributions observed by the Van Allen Probes in the dayside low-latitude region.
Abel, Abel, Bortnik, Bortnik, Bortnik, Bortnik, C. A. Kletzing, Chao Shen, Chen, Chen, Church, Cornilleau-Wehrlin, D. N. Baker, Denton, Fuliang Xiao, Funsten, G. B. Hospodarsky, G. D. Reeves, Glauert, Green, H. E. Spence, H. O. Funsten, Horne, Hui Zhu, Huinan Zheng, J. B. Blake, Kletzing, Li, Li, Li, Lyons, Mauk, Meredith, Meredith, Mourenas, Ni, Ni, Russell, Santolik, Shprits, Shui Wang, Sonwalkar, Su, Su, Summers, Summers, Summers, Tao Xian, Thorne, Thorne, Thorne, W. S. Kurth, Yuming Wang, Zhenpeng Su   +53 more
core   +3 more sources

Energetic, relativistic and ultra-relativistic electrons: Comparison of long-term VERB code simulations with Van Allen Probes measurements [PDF]

, 2015
In this study, we compare long-term simulations performed by the Versatile Electron Radiation Belt (VERB) code with observations from the Magnetic Electron Ion Spectrometer and Relativistic Electron-Proton Telescope instruments on the Van Allen Probes ...
Agapitov, Albert, Artemyev, Artemyev, Baker, Baker, Blake, Boyd, Brautigam, Carpenter, Cattell, Cully, Denton, Denton, Glauert, Green, Horne, Kennel, Kim, Kim, Kim, Kim, Li, Li, Mauk, Millan, O'Brien, O'Brien, Orlova, Reeves, Reeves, Reeves, Roederer, Rothwell, Russell, Schulz, Shprits, Shprits, Shprits, Shprits, Shprits, Shprits, Shprits, Shprits, Spence, Stratton, Su, Subbotin, Subbotin, Subbotin, Summers, Thorne, Thorne, Thorne, Tsyganenko, Tu, Tu, Tu, Turner, Ukhorskiy, Usanova, Vampola, Van Allen, Vernov   +63 more
core   +3 more sources

Simulation study on parametric dependence of whistler-mode hiss generation in the plasmasphere

Earth, Planets and Space, 2021
We conduct electromagnetic particle simulations to examine the applicability of nonlinear wave growth theory to the generation process of plasmaspheric hiss. We firstly vary the gradient of the background magnetic field from a realistic model to a rather
Yin Liu, Yoshiharu Omura, Mitsuru Hikishima   +2 more
doaj   +1 more source