Results 51 to 60 of about 18,719 (213)

Rapid acceleration of electrons in the magnetosphere by fast-mode MHD waves

, 2000
During major megnetic storms, enhanced flux of relativistic electrons in the inner magnetosphere have been observed to correleated with ULF waves. The enhancements can take place over a period of several hours.
Achterberg, Anderson, Baker, Baker, Baker, Baker, Barfield, Chun-yu Ma, Danny Summers, Elkington, Engebretson, Fisk, Higuchi, Hudson, Hudson, Kennel, Kivelson, Krauss-Varban, Lee, Lerche, Li, Liu, Ma, Miller, Miller, Reeves, Reeves, Rostoker, Schlickeiser, Stix, Summers, Summers, Summers, Swanson, Tsytovich   +34 more
core   +1 more source

Modulation of Locally Generated Equatorial Noise by ULF Wave [PDF]

Journal of Geophysical Research: Space Physics, 2019
AbstractIn this paper we report a rare and fortunate event of fast magnetosonic (MS, also called equatorial noise) waves modulated by compressional ultralow frequency (ULF) waves measured by Van Allen Probes. The characteristics of MS waves, ULF waves, proton distribution, and their potential correlations are analyzed.
Hui Zhu, Lunjin Chen, Xu Liu, Yuri Y. Shprits   +3 more
openaire   +3 more sources

The Cluster Virtual Observatory for ULF Waves

Journal of Geophysical Research: Space Physics, 2023
AbstractSince its launch in 2000, the Cluster fleet visited a vast domain of the circum‐terrestrial environment, from the upstream solar wind and the distant tail, down to the plasmasphere, scanning in detail all magnetospheric regions during over two solar cycles.
O. D. Constantinescu, K. H. Fornaçon, U. Motschmann, K. H. Glassmeier, I. Richter, F. Plaschke   +5 more
openaire   +1 more source

Tone‐Evoked Sleep Electroencephalographic Slow Oscillations as a Function of Peripheral Rhythms: New Insights Into the Brain–Heart Integration

Journal of Sleep Research, EarlyView.
ABSTRACT Recent studies have shown that acoustic stimulation, a common neuromodulation technique, can enhance slow‐wave activity (SWA), which is associated with immune, autonomic nervous system activity and cognitive health benefits. Despite some disagreement, many studies suggest that maximising tone‐evoked SWA depends on the timing of the acoustic ...
Mohamad Forouzanfar, Sepehr Sardooeinasab, Fiona C. Baker, Ian M. Colrain, Massimiliano de Zambotti   +4 more
wiley   +1 more source

Electron acceleration observed by the FAST satellite within the IAR during a 3 Hz modulated EISCAT heater experiment [PDF]

Annales Geophysicae, 2002
A quantitative analysis is presented of the FAST satellite electric field and particle flux data during an EISCAT heating experiment run on 8 October 1998.
S. R. Cash, S. R. Cash, J. A. Davies, E. Kolesnikova, T. R. Robinson, D. M. Wright, T. K. Yeoman, R. J. Strangeway   +7 more
doaj   +1 more source

Modulation of NTC frequencies by Pc5 ULF pulsations : experimental test of the generation mechanism and magnetoseismology of the emitting surface [PDF]

, 2009
Nonthermal continuum (NTC) radiation is believed to be emitted by the conversion of an electrostatic wave into an electromagnetic one, which takes place at the Earth's magnetic equator.
Anderson, Balogh, Bernstein, C. Foullon, Calvert, Canu, Cheng, Christiansen, Denton, Décréau, Décréau, Décréau, Engebretson, Eriksson, Etcheto, G. Le Rouzic, Gough, Gough, Gurnett, Gurnett, Gustafsson, Hudson, Hughes, Kasaba, Kennel, Kurth, Kurth, Loewe, Loto'Aniu, Mager, Mann, Melrose, Morgan, Oya, P. M. E. Décréau, Pierrard, Rönnmark, S. Grimald, Schäfer, Singer, Takahashi, Tsyganenko, X. Suraud, X. Vallières   +43 more
core   +3 more sources

Reflections of Swedish Fathers in Late Adulthood on Their Past and Present Parental Role in Relation to the Mother

Scandinavian Journal of Psychology, EarlyView.
ABSTRACT With a contextual and developmental perspective, this study aimed to examine Swedish late‐adult fathers' reflections on their past and present parental role in relation to the mother and to see how these reflections incorporate changes in gender and parenthood during recent decades in Sweden.
Maria Wängqvist, Nathalie Korhonen
wiley   +1 more source

ULF wave occurrence statistics in a high-latitude HF Doppler sounder [PDF]

Annales Geophysicae, 1999
Ultra low frequency (ULF) wave activity in the high-latitude ionosphere has been observed by a high frequency (HF) Doppler sounder located at Tromsø, Norway (69.7°N, 19.2°E geographic coordinates).
D. M. Wright, T. K. Yeoman, T. B. Jones
doaj   +1 more source

Simulation of radiation belt wave-particle interactions in an MHD-particle framework

Frontiers in Astronomy and Space Sciences, 2023
In this paper we describe K2, a comprehensive simulation model of Earth’s radiation belts that includes a wide range of relevant physical processes. Global MHD simulations are combined with guiding-center test-particle methods to model interactions with ...
Anthony A. Chan, Scot R. Elkington, William J. Longley, William J. Longley, Suhail A. Aldhurais, Suhail A. Aldhurais, Suhail A. Aldhurais, Shah S. Alam, Jay M. Albert, Allison N. Jaynes, David M. Malaspina, David M. Malaspina, Qianli Ma, Wen Li   +13 more
doaj   +1 more source

Revised time-of-flight calculations for high-latitude geomagnetic pulsations using a realistic magnetospheric magnetic field model [PDF]

, 2005
We present a simple time-of-flight analysis of Alfvén pulsations standing on closed terrestrial magnetic field lines. The technique employed in this study in order to calculate the characteristic period of such oscillations builds upon earlier time-of ...
Waters, C. L., Wild, James A., Yeoman, T. K.   +2 more
core   +1 more source