Results 31 to 40 of about 1,410 (184)

What is the heliopause? Importance of magnetic reconnection and measurement requirements

Frontiers in Astronomy and Space Sciences, 2023
We highlight the importance of magnetic reconnection at the heliopause, both as one of the key processes driving the interaction between solar and interstellar media, but also as an element of the definition of the heliopause itself.
B. Lavraud, B. Lavraud, M. Opher, K. Dialynas, D. L. Turner, S. Eriksson, E. Provornikova, M. Z. Kornbleuth, P. Mostafavi, A. Fedorov, J. D. Richardson, S. A. Fuselier, J. Drake, M. Swisdak, M. Eubanks, T. Y. Chen, H. Kucharek, P. Kollmann, M. Blanc, N. André, V. Génot, R. F. Wimmer-Schweingruber, S. Barabash, P. Brandt, R. McNutt   +24 more
doaj   +1 more source

Boundary conditions of the heliosphere [PDF]

Journal of Geophysical Research: Space Physics, 2003
Radiative transfer equilibrium models of nearby interstellar matter (ISM) are required to determine the boundary conditions of the heliosphere from astronomical observations of nearby stars. These models are also constrained by data on the ISM inside of the solar system, including pickup ion, anomalous cosmic rays, and in situ Heo data.
openaire   +2 more sources

Modeling of Heliospheric Modulation of Cosmic-Ray Positrons in a Very Quiet Heliosphere [PDF]

The Astrophysical Journal, 2019
13 Pages, 12 figures, Submitted to Astrophysical ...
O. P. M. Aslam, D. Bisschoff, M. S. Potgieter, M. Boezio, R. Munini   +4 more
openaire   +3 more sources

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

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

Spaceborne and spaceborn: Physiological aspects of pregnancy and birth during interplanetary flight

Experimental Physiology, EarlyView.
Abstract Crewed interplanetary return missions that are on the planning horizon will take years, more than enough time for initiation and completion of a pregnancy. Pregnancy is viewed as a sequence of processes – fertilization, blastocyst formation, implantation, gastrulation, placentation, organogenesis, gross morphogenesis, birth and neonatal ...
Arun V. Holden
wiley   +1 more source

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

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

Near‐Earth Cosmic Ray Modulation Index ϕ and Neutron Monitor Cutoff Rigidities at Hourly Cadence: Toward an Improved Monitoring of Solar‐Terrestrial Radiation Environment, Space Weather, and Space Climate

Journal of Geophysical Research: Space Physics, Volume 131, Issue 8, August 2026.
Abstract Cosmic rays (CRs) are energetic particles originating from galactic and extragalactic sources. When arriving into the solar system and the Sun's heliosphere, they are diverted and modulated by the magnetic activity of the Sun. This modulation can be quantified by the modulation parameter ϕ $\phi $ determined with the Force‐field approximation (
Pauli Väisänen, Nicholas Larsen, Sergey Koldobskiy, Markus Similä, David Pelosi, Miguel Orcinha   +5 more
wiley   +1 more source