Results 41 to 50 of about 720 (196)

The Cosmic Timeline of Heliophysics: A Declaration of Significance

, 2020
Perspectives of Earth and Space Scientists, Volume 1, Issue 1, 2020.
Thomas Earle Moore
wiley   +1 more source

Approximation of Daily AMS‐02 Spectra With Machine Learning Methods

Journal of Geophysical Research: Machine Learning and Computation, Volume 2, Issue 4, December 2025.
Abstract Almost three thousand daily AMS‐02 proton spectra from 2011 to 2019 offer the most precise and extensive data set of cosmic ray spectra covering a wide energy range. As such, they offer a unique opportunity to test machine learning algorithms for approximating cosmic ray proton spectra based on the inputs usually available to solar modulation ...
Martin Nguyen, Pavol Bobík, Ján Genči
wiley   +1 more source

Estimating Soft X‐Ray Emission From Uranus's Magnetosheath

Journal of Geophysical Research: Space Physics, Volume 130, Issue 11, November 2025.
Abstract Soft X‐ray emission occurs within planetary magnetosheaths when highly charged solar wind ions undergo charge exchange with neutrals. The emission can provide dynamic views of the magnetosheath and cusps, allowing for investigations of the solar wind interaction with a planetary magnetosphere.
D. Naylor, L. C. Ray, W. R. Dunn, J. M. Jasinski, C. Paty   +4 more
wiley   +1 more source

Interplanetary coronal mass ejection observed at STEREO‐A, Mars, comet 67P/Churyumov‐Gerasimenko, Saturn, and New Horizons en route to Pluto: Comparison of its Forbush decreases at 1.4, 3.1, and 9.9 AU

Journal of Geophysical Research: Space Physics, Volume 122, Issue 8, Page 7865-7890, August 2017., 2017
Abstract We discuss observations of the journey throughout the Solar System of a large interplanetary coronal mass ejection (ICME) that was ejected at the Sun on 14 October 2014. The ICME hit Mars on 17 October, as observed by the Mars Express, Mars Atmosphere and Volatile EvolutioN Mission (MAVEN), Mars Odyssey, and Mars Science Laboratory (MSL ...
O. Witasse, B. Sánchez‐Cano, M. L. Mays, P. Kajdič, H. Opgenoorth, H. A. Elliott, I. G. Richardson, I. Zouganelis, J. Zender, R. F. Wimmer‐Schweingruber, L. Turc, M. G. G. T. Taylor, E. Roussos, A. Rouillard, I. Richter, J. D. Richardson, R. Ramstad, G. Provan, A. Posner, J. J. Plaut, D. Odstrcil, H. Nilsson, P. Niemenen, S. E. Milan, K. Mandt, H. Lohf, M. Lester, J.‐P. Lebreton, E. Kuulkers, N. Krupp, C. Koenders, M. K. James, D. Intzekara, M. Holmstrom, D. M. Hassler, B. E. S. Hall, J. Guo, R. Goldstein, C. Goetz, K. H. Glassmeier, V. Génot, H. Evans, J. Espley, N. J. T. Edberg, M. Dougherty, S. W. H. Cowley, J. Burch, E. Behar, S. Barabash, D. J. Andrews, N. Altobelli   +50 more
wiley   +1 more source

Predictions for the Shape and Orientation of Earth's Foreshock Radiation Sources

Journal of Geophysical Research: Space Physics, Volume 130, Issue 7, July 2025.
Abstract Radio emission produced in Earth's foreshock is due to the bow shock reflecting some electrons back upstream into the foreshock, where they produce Langmuir waves and radio emissions near the electron plasma frequency fp ${f}_{p}$ and near 2fp $2{f}_{p}$.
Iver H. Cairns, Patrick Oppel
wiley   +1 more source

Dynamics and Control of a Flexible Solar Sail

Mathematical Problems in Engineering, Volume 2014, Issue 1, 2014., 2014
Solar sail can merely make use of solar radiation pressure (SRP) force as the thrust for space missions. The attitude dynamics is obtained for the highly flexible solar sail with control vanes, sliding masses, and a gimbaled control boom. The vibration equations are derived considering the geometric nonlinearity of the sail structure subjected to the ...
Jiafu Liu, Siyuan Rong, Fan Shen, Naigang Cui, Sebastian Anita   +4 more
wiley   +1 more source

No Stagnation Region before the Heliopause at Voyager 1? Inferences from New Voyager 2 Results [PDF]

, 2021
We present anisotropy results for anomalous cosmic-ray protons in the energy range ~0.5–35 MeV from Cosmic Ray Subsystem (CRS) data collected during calibration roll maneuvers for the magnetometer instrument when Voyager 2 (V2) was in the inner ...
Kóta, J., Stone, E. C., Heikkila, B. C., Lal, N., Cummings, A. C., Richardson, J. D.   +5 more
core   +1 more source

Probing the Length of the Heliospheric Tail with Energetic Neutral Atoms (ENAs) from 0.52 to 80 keV

The Astrophysical Journal Letters, 2023
The shape of the heliosphere is currently under active debate. Energetic neutral atoms (ENAs) offer the best method for investigating the global structure of the heliosphere.
M. Kornbleuth, M. Opher, K. Dialynas, G. P. Zank, B. B. Wang, I. Baliukin, M. Gkioulidou, J. Giacalone, V. Izmodenov, J. M. Sokół, M. A. Dayeh   +10 more
doaj   +1 more source

A Heliopause Spectrum for Electrons

, 2013
We present a heliopause spectrum for galactic electrons over an energy range from 1 MeV to 50 GeV at 122 AU from the Sun. This spectrum can be considered the lowest possible local interstellar spectrum (LIS). This is obtained by using a comprehensive numerical model for solar modulation in comparison with Voyager 1 observations during 2010 and PAMELA ...
Potgieter, M. S., Nndanganeni, R. R., Vos, E. E., Boezio, M.   +3 more
openaire   +2 more sources

Giant Undulations Driven by Pitch‐Angle Scattering of Time Domain Structures Modulated by Plasmapause Surface Wave

Geophysical Research Letters, Volume 52, Issue 3, 16 February 2025.
Abstract Plasmapause surface waves (PSWs) near the plasmapause boundary are regarded to be the magnetospheric source of ionospheric auroral giant undulations (GUs) located at the equatorward boundary of diffuse aurora. However, the observational evidence of wave‐particle interaction connecting PSWs and GUs is absent.
Yi‐Jia Zhou, Pei‐Heng Du, Jian Liu, Quan‐Qi Shi, Meng‐Dan Guo, Fei He, Xiao‐Xin Zhang, Yong‐Liang Zhang, Zhong‐Hua Yao, Jun Zhong, Zhaojin Rong, Yong Wei   +11 more
wiley   +1 more source