Results 11 to 20 of about 78,626 (296)
Frontiers in Astronomy and Space Sciences, 2020 We study the transport of energetic particles accelerated at three different shock events observed in the solar wind by the ACE spacecraft. We consider particle propagation for a quasi-parallel, an oblique, and a quasi-perpendicular shock.
Gaetano Zimbardo +3 more
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Microphysical Plasma Relations from Special-relativistic Turbulence
The Astrophysical Journal, 2023 The microphysical, kinetic properties of astrophysical plasmas near accreting compact objects are still poorly understood. For instance, in modern general-relativistic magnetohydrodynamic simulations, the relation between the temperature of electrons T ...
Claudio Meringolo +3 more
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Domain of Influence Analysis: Implications for Data Assimilation in Space Weather Forecasting
Frontiers in Astronomy and Space Sciences, 2020 Solar activity, ranging from the background solar wind to energetic coronal mass ejections (CMEs), is the main driver of the conditions in the interplanetary space and in the terrestrial space environment, known as space weather.
Dimitrios Millas +7 more
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Synchrotron Firehose Instability
The Astrophysical Journal, 2023 We demonstrate using linear theory and particle-in-cell (PIC) simulations that a synchrotron-cooling collisionless plasma acquires pressure anisotropy and, if the plasma beta is sufficiently high, becomes unstable to the firehose instability, in a ...
Vladimir Zhdankin +2 more
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High-Frequency Dynamics of Active Region Moss as Observed by IRIS
Frontiers in Astronomy and Space Sciences, 2019 The high temporal, spatial and spectral resolution of Interface Region Imaging Spectrograph (IRIS) has provided new insights into the understanding of different small-scale processes occurring at the chromospheric and transition region (TR) heights.
Nancy Narang +3 more
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The Astrophysical Journal Letters, 2023 Magnetic reconnection is an important source of energetic particles in systems ranging from astrophysics to the laboratory. The large separation of spatiotemporal scales involved makes it critical to determine the minimum physical model containing the ...
Samuel R. Totorica +5 more
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Optimized gyrosynchrotron algorithms and fast codes [PDF]
, 2010 Gyrosynchrotron (GS) emission of charged particles spiraling in magnetic fields plays an exceptionally important role in astrophysics. In particular, this mechanism makes a dominant contribution to the continuum solar and stellar radio emissions. However,
Alexey A. Kuznetsov +5 more
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Multithermal Jet Formation Triggered by Flux Emergence
The Astrophysical Journal Letters, 2023 Flux emergence is responsible for various solar eruptions. Combining observation and simulations, we investigate the influence of flux emergence at one footpoint of an arcade on coronal rain as well as induced eruptions.
Xiaohong Li, Rony Keppens, Yuhao Zhou
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Amplitudes and Energy Fluxes of Simulated Decayless Kink Oscillations
Frontiers in Astronomy and Space Sciences, 2019 Recent observations with the Atmospheric Imaging Assembly (AIA) instrument on the SDO spacecraft have revealed the existence of decayless coronal kink oscillations.
Konstantinos Karampelas +5 more
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The Madison plasma dynamo experiment: a facility for studying laboratory plasma astrophysics [PDF]
, 2013 The Madison plasma dynamo experiment (MPDX) is a novel, versatile, basic plasma research device designed to investigate flow driven magnetohydrodynamic (MHD) instabilities and other high-$\beta$ phenomena with astrophysically relevant parameters.
Brookhart, M. +15 more
core +2 more sources