Results 41 to 50 of about 7,600 (227)

The dynamic heliosphere, solar activity, and cosmic rays

, 2010
This brief review addresses the relation between solar activity, cosmic ray variations and the dynamics of the heliosphere. The global features of the heliosphere influence what happens inside its boundaries on a variety of time-scales.
Potgieter, Marius S.
core   +1 more source

On the importance of investigating CME complexity evolution during interplanetary propagation

Frontiers in Astronomy and Space Sciences, 2022
This perspective paper brings to light the need for comprehensive studies on the evolution of interplanetary coronal mass ejection (ICME) complexity during propagation. To date, few studies of ICME complexity exist.
Réka M. Winslow, Camilla Scolini, Camilla Scolini, Lan K. Jian, Teresa Nieves-Chinchilla, Manuela Temmer, Fernando Carcaboso, Fernando Carcaboso, Brigitte Schmieder, Brigitte Schmieder, Brigitte Schmieder, Stefaan Poedts, Stefaan Poedts, Benjamin J. Lynch, Brian E. Wood, Erika Palmerio, Noé Lugaz, Charles J. Farrugia, Christina O. Lee, Emma E. Davies, Florian Regnault, Tarik M. Salman, Tarik M. Salman, Tibor Török, Nada Al-Haddad, Angelos Vourlidas, Ward B. Manchester, Meng Jin, Benoit Lavraud, Antoinette B. Galvin   +29 more
doaj   +1 more source

Heliosphere

Eos, Transactions American Geophysical Union, 1991
Coronal mass ejections (CMEs) are playing increasingly important roles in models developed to understand solar‐terrestrial physics. A CME is characterized by a disruption or change in a helmet streamer, one of the radiant petals so prominent in solar eclipse pictures.
openaire   +1 more source

Transport of Solar Wind Fluctuations: A Two-Component Model [PDF]

, 2011
We present a new model for the transport of solar wind fluctuations which treats them as two interacting incompressible components: quasi-two-dimensional turbulence and a wave-like piece.
Matthaeus, William H., P. A. Isenberg, Breech, B., Isenberg, P. A., Matthaeus, W. H., C. W. Smith, Smith, C. W., Oughton, Sean, S. Oughton, Smith, Charles W., W. H. Matthaeus, Oughton, S., B. Breech, Breech, Ben   +13 more
core   +1 more source

Reconstruction of the Parker spiral with the Reverse In situ data and MHD APproach – RIMAP

Journal of Space Weather and Space Climate, 2021
The reconstruction of plasma parameters in the interplanetary medium is very important to understand the interplanetary propagation of solar eruptions and for Space Weather application purposes.
Biondo Ruggero, Bemporad Alessandro, Mignone Andrea, Reale Fabio   +3 more
doaj   +1 more source

Cosmic Ray Anisotropy Generated by the June 22nd 2015 Interplanetary Events

Journal of Geophysical Research: Space Physics, Volume 131, Issue 9, September 2026.
Abstract On 22 June 2015, the near Earth interplanetary space was perturbed by a series of high‐speed streamers and interplanetary coronal mass ejections associated with an active region and two low‐latitude coronal holes. The interaction of these disturbances gave rise to the complex solar wind structure observed at 1 au.
A. Lara, K. P. Arunbabu, T. Niembro
wiley   +1 more source

The Heliosphere in Time [PDF]

Space Science Reviews, 2008
Because of the dynamic nature of the interstellar medium, the Sun should have encountered a variety of different interstellar environments in its lifetime. As the solar wind interacts with the surrounding interstellar medium to form a heliosphere, different heliosphere shapes, sizes, and particle contents result from the different environments. Some of
Müller, H. -R., Frisch, P. C., Fields, B. D., Zank, G. P.   +3 more
openaire   +2 more sources

Collisionless Shocks: Contemporary State After Three Quarters of a Century of Research

Reviews of Geophysics, Volume 64, Issue 3, September 2026.
Abstract The collisionless shock research started in the late 1950s. Since then, plenty of data have been accumulated due to the large number of missions in the heliosphere, providing in situ measurements of the fields and particles. The quality of these measurements has vastly improved, especially in the last two decades.
M. Gedalin, M. Balikhin, V. Krasnoselskikh   +2 more
wiley   +1 more source

Breathing of the Heliosphere

The Astrophysical Journal, 2021
Abstract In late 2016, the Interstellar Boundary Explorer (IBEX) observed an enhancement of hydrogen energetic neutral atom (ENA) flux in ∼20° south from the nose direction. This enhancement was a consequence of an abrupt increase of the solar wind (SW) dynamic pressure observed at 1 au in late 2014.
Justyna M. Sokół, Maher A. Dayeh, Stephen A. Fuselier, Georgios Nicolaou, D. J. McComas, E. J. Zirnstein   +5 more
openaire   +1 more source

Impact of Inner Heliospheric Boundary Conditions on Solar Wind Predictions at Earth

Space Weather, 2021
Predictions of the physical parameters of the solar wind at Earth are at the core of operational space weather forecasts. Such predictions typically use line‐of‐sight observations of the photospheric magnetic field to drive a heliospheric model.
Siegfried Gonzi, M. Weinzierl, F.‐X. Bocquet, M. M. Bisi, D. Odstrcil, B. V. Jackson, A. R. Yeates, D. R. Jackson, C. J. Henney, C. Nick Arge   +9 more
doaj   +1 more source