Results 11 to 20 of about 278,597 (210)

Characterization of the Transmission and Generation of Turbulence at Interplanetary Shocks

The Astrophysical Journal
We study the transmission and characteristics of turbulent magnetohydrodynamic (MHD) fluctuations from upstream to downstream regions of interplanetary (IP) shocks using the linear mode decomposition (LMD) technique of G. P. Zank et al.
Sujan Prasad Gautam, Gary P Zank, Alexander Pitňa, Laxman Adhikari, Lingling Zhao, Ashok Silwal, Prashant Baruwal, Prashrit Baruwal, Monika Karki, Ismita Tasnim, Binod Adhikari   +10 more
doaj   +2 more sources

Evolution of Turbulence at an Interplanetary Shock Observed by the Solar Orbiter and Wind Spacecraft

The Astrophysical Journal
This work presents a case study of the evolution of turbulence in the vicinity of an interplanetary shock observed by Solar Orbiter (SolO) at 0.83 au and Wind at 1 au on 2023 November 30.
Sujan Prasad Gautam, Gary P. Zank, Alexander Pitňa, Bingbing Wang   +3 more
doaj   +2 more sources

Effect of interplanetary shock waves on turbulence parameters [PDF]

Annales Geophysicae
We perform an extensive statistical investigation of how interplanetary fast forward shocks affect certain turbulence parameters, namely, the normalised cross-helicity, σc; residual energy, σr; and magnetic helicity, σm.
E. Kilpua, S. Good, J. Soljento, D. Trotta, D. Trotta, T. Bäcker, J. Ruohotie, J. Pomoell, C. Sishtla, C. Sishtla, R. Vainio   +10 more
doaj   +6 more sources

Interplanetary and interstellar plasma turbulence [PDF]

Plasma Physics and Controlled Fusion, 2007
Theoretical approaches to low-frequency magnetized turbulence in collisionless and weakly collisional astrophysical plasmas are reviewed. The proper starting point for an analytical description of these plasmas is kinetic theory, not fluid equations. The anisotropy of the turbulence is used to systematically derive a series of reduced analytical models.
Schekochihin, A, Cowley, S, Dorland, W
openaire   +4 more sources

Simultaneous interplanetary scintillation and Heliospheric Imager observations of a coronal mass ejection [PDF]

, 2008
We describe simultaneous Interplanetary Scintillation (IPS) and STEREO Heliospheric Imager (HI) observations of a coronal mass ejection (CME) on 16 May 2007. Strong CME signatures were present throughout the IPS observation.
Davies, Jackie, Breen, Andy, Rouillard, Alexis, Fallows, Richard, Brown, Daniel, Dorrian, Gareth   +5 more
core   +6 more sources

Solar and Interplanetary Turbulence: Lagrangian Coherent Structures [PDF]

, 2021
Talk delivered in 22nd EGU General Assembly, held online 4-8 May, 2020, id.4289, https://meetingorganizer.copernicus.org/EGU2020/EGU2020-4289.html.-- https://www.egu2020.eu/The dynamics of solar and interplanetary plasmas is governed by coherent ...
Feng, Heng Q., Gosic, Milan, Silva, Suzana S. A., Chian, Abraham C. L., Grasso, Daniela, Bellot Rubio, Luis R., Wu, De J., Gomes, Tiago F. P., Ruffolo, David, Munoz, Pablo R., Kusano, Kanya, Miranda, Rodrigo A., Hu, Qiang, Rempel, Erico L.   +13 more
core   +1 more source

Structure of the Turbulent Interplanetary Magnetic Field [PDF]

The Astrophysical Journal, 2006
We show that two widely used but apparently different models of the turbulent interplanetary magnetic field are closely related. One of these is the so-called quasi-static turbulence model, in which interplanetary magnetic field fluctuations are generated at a source surface near the Sun by random transverse plasma motions (such as supergranulation at ...
J. Giacalone, J. R. Jokipii, W. H. Matthaeus   +2 more
openaire   +1 more source

MHD Turbulence in the Solar Wind and Interplanetary Dynamo Effects [PDF]

Symposium - International Astronomical Union, 1993
From the fluctuations of the velocity and magnetic field observed in different kinds of solar wind the fluctuating electric fields are derived, and their power spectra are constructed and analysed. The mean electromotive force ɛ generated by the turbulent motions depends upon the nature of the fluctuations.
Marsch, E., Tu, C.
openaire   +2 more sources

Developments in the use of EISCAT for interplanetary scintillation [PDF]

, 2008
The antennas of EISCAT have been used for interplanetary scintillation (IPS) studies of the solar wind for many years. The main science found from these studies is obtained through the cross-correlation of signals from antennas having the longest ...
Fallows, R. A., Dorrian, G. D., Breen, A. R.   +2 more
core   +6 more sources

Turbulence transport throughout the heliosphere [PDF]

, 2007
We employ a turbulence transport model to compute distributions of turbulence throughout the heliosphere. The model determines the radial dependence of three (coupled) quantities that characterize interplanetary turbulence, the energy per unit mass, the ...
Matthaeus, William H., Oughton, Sean, Minnie, J., Smith, Charles W., Bieber, J.W., Isenberg, P.A., Breech, Ben   +6 more
core   +2 more sources