Results 51 to 60 of about 329,171 (264)

Cosmic ray fluctuations and MHD waves in the solar wind

Solar-Terrestrial Physics, 2023
During large-scale solar wind disturbances, variations in galactic cosmic rays with periods from several minutes to 2–3 hours, which are called cosmic ray fluctuations in the scientific literature, often occur.
Starodubtsev S. A., Zverev A. S., Gololobov P. Y., Grigoryev V. G.   +3 more
doaj   +1 more source

Change of Spectral Properties of Magnetic Field Fluctuations across Different Types of Interplanetary Shocks

The Astrophysical Journal Letters, 2023
The interaction between interplanetary (IP) shocks and the solar wind has been studied in the past for the understanding of energy dissipation mechanisms within collisionless plasmas.
Byeongseon Park, Alexander Pitňa, Jana Šafránková, Zdeněk Němeček, Oksana Krupařová, Vratislav Krupař, Lingling Zhao, Ashok Silwal   +7 more
doaj   +1 more source

Nature, Generation, and Dissipation of Alfvénic Kinks/Switchbacks Observed by Parker Solar Probe and WIND

The Astrophysical Journal, 2023
The discovery of very prominent magnetic kinks/switchbacks in the solar wind within 0.3 au has become a scientific highlight of the Parker Solar Probe (PSP) mission. This discovery points at the promising impact of small-scale solar activity on the inner
Chuanpeng Hou, Xingyu Zhu, Rui Zhuo, Jiansen He, Daniel Verscharen, Die Duan   +5 more
doaj   +1 more source

On the probability distribution function of small scale interplanetary magnetic field fluctuations [PDF]

, 2004
In spite of a large number of papers dedicated to study MHD turbulence in the solar wind there are still some simple questions which have never been sufficiently addressed like: a)do we really know how the magnetic field vector orientation fluctuates in ...
Bavassano, B., Bruno, R., Carbone, V., Malara, F., Primavera, L., Sorriso-Valvo, L., Veltri, P.   +6 more
core   +4 more sources

von Karman Correlation Similarity of the Turbulent Interplanetary Magnetic Field

The Astrophysical Journal Letters, 2021
Abstract A major development underlying much of hydrodynamic turbulence theory is the similarity decay hypothesis due to von Karman and Howarth here extended empirically to magnetic field fluctuations in the solar wind. In similarity decay the second-order correlation experiences a continuous transformation based on a universal ...
Sohom Roy, R. Chhiber, S. Dasso, M. E. Ruiz, W. H. Matthaeus   +4 more
openaire   +2 more sources

Transport of cross helicity and radial evolution of alfvenicity in the solar wind [PDF]

, 2004
A transport theory including cross helicity, magnetohydrodynamic(MHD) turbulence, and driving by shear and pickup ions, is applied to the radial evolution of the solar wind.
Bieber, J.W., Breech, Ben, Matthaeus, William H., Minnie, J., Oughton, Sean, Parhi, S.   +5 more
core   +1 more source

Persistence of small-scale anisotropy of magnetic turbulence as observed in the solar wind [PDF]

, 2006
The anisotropy of magnetophydrodynamic turbulence is investigated by using solar wind data from the Helios 2 spacecraft. We investigate the behaviour of the complete high-order moment tensors of magnetic field increments and we compare the usual ...
Biskamp D., Bruno R., Carbone V., Frisch U., Kolmogorov A. N., Kurien S., L Sorriso-Valvo, P Veltri, R Bruno, Sonnerup B. U. O., Sreenivasan K. R., V Carbone   +11 more
core   +2 more sources

Energy Conversion through a Fluctuation–Dissipation Relation at Kinetic Scales in the Earth’s Magnetosheath

The Astrophysical Journal, 2023
Low-frequency fluctuations in the interplanetary medium represent a turbulent environment where universal scaling behavior, generated by an energy cascade, has been investigated.
Federica Chiappetta, Emiliya Yordanova, Zoltán Vörös, Fabio Lepreti, Vincenzo Carbone   +4 more
doaj   +1 more source

Acceleration of Solar Wind Ions by Nearby Interplanetary Shocks: Comparison of Monte Carlo Simulations with Ulysses Observations [PDF]

, 1996
The most stringent test of theoretical models of the first-order Fermi mechanism at collisionless astrophysical shocks is a comparison of the theoretical predictions with observational data on particle populations.
Balogh A., Baring M. G., Baring M. G., Bell A. R., Burton M. E., Decker R. B., Decker R. B., Donald C. Ellison, Ellison D. C., Ellison D. C., Ellison D. C., Fuselier S. A., Fuselier S. A., Giacalone J., Gloeckler G., Gloeckler G., Gosling J. T., Gosling J. T., Gosling J. T., Gosling J. T., Gosling J. T., Hoppe M. M., Hundhausen A. J., Ipavich F. M., Ipavich F. M., Jokipii J. R., Jones F. C., Jones T. W., Keith W. Ogilvie, Kennel C. F., Lanzerotti L. J., Lee M. A., Liewer P. C., Matthew G. Baring, Mobius E., Ogilvie K. W., Phillips J. L., Robert J. Forsyth, Sarris E. T., Scholer M., Tan L. C., Tan L. C., Trattner K. J., Trattner K. J., Tsurutani B. T., Valdes-Galicia J. F., Vasyliunas V. M., Vinas A. F.   +47 more
core   +2 more sources

Interpretation of Flat Energy Spectra Upstream of Fast Interplanetary Shocks

The Astrophysical Journal, 2023
Interplanetary shocks are large-scale heliospheric structures often caused by eruptive phenomena at the Sun, and represent one of the main sources of energetic particles.
Silvia Perri, Giuseppe Prete, Gaetano Zimbardo, Domenico Trotta, Lynn B. Wilson III, David Lario, Sergio Servidio, Francesco Valentini, Joe Giacalone   +8 more
doaj   +1 more source