Results 31 to 40 of about 311 (97)

Multipoint Observations of a SLAMS Evolution and Its Merger With Whistler Waves

Geophysical Research Letters, Volume 53, Issue 2, 28 January 2026.
Abstract We report multipoint observations of a merger between a Short Large‐Amplitude Magnetic Structure (SLAMS) and 1‐Hz whistler wave packets upstream of Earth's quasi‐parallel bow shock. Using high‐resolution data from the Magnetospheric Multiscale (MMS) mission in a string‐of‐pearls configuration, we track the SLAMS as it evolves, exhibiting ...
Mengmeng Wang, Yuri V. Khotyaintsev, Daniel B. Graham, Jing‐Huan Li, Ahmad Lalti, Cecilia Norgren   +5 more
wiley   +1 more source

Formation of Foreshock Transients and Associated Secondary Shocks [PDF]

, 2020
Upstream of shocks, the foreshock is filled with hot ions. When these ions are concentrated and thermalized around a discontinuity, a diamagnetic cavity bounded by compressional boundaries, referred to as a foreshock transient, forms.
An, Xin, Angelopoulos, Vassilis, Bortnik, Jacob, Liu, Terry Z., Osmane, Adnane   +4 more
core   +2 more sources

Different Transient Phenomena at the Edges of Traveling Foreshocks

Journal of Geophysical Research: Space Physics, Volume 131, Issue 1, January 2026.
Abstract Past kinetic simulations and spacecraft observations have shown that traveling foreshocks (TFs) are bounded by either foreshock compressional boundaries (FCBs) or foreshock bubbles (FBs). Here we present four TFs with a different kind of structure appearing at one of their edges.
Primož Kajdič, Xochitl Blanco‐Cano, Diana Rojas‐Castillo, Nojan Omidi   +3 more
wiley   +1 more source

Clustering of Global Magnetospheric Observations

Journal of Geophysical Research: Machine Learning and Computation
The use of supervised methods in space science have demonstrated powerful capability in classification tasks, but purely unsupervised methods have been less utilized for the classification of spacecraft observations.
James Edmond, Joachim Raeder, Banafsheh Ferdousi, Matthew Argall, Maria Elena Innocenti   +4 more
doaj   +1 more source

Upstream Structures and Their Effects on the Magnetosphere [PDF]

, 2011
Kinetic processes within the Earth's foreshock generate a profusion of plasma and magnetic field structures with sizes and durations ranging from the microscale (e.g. SLAMs, solitons, and density holes) to the mesoscale (e.g.
Sibeck, D. G.
core   +1 more source

Oxygen Ion Escape From Venus Is Modulated by Ultra‐Low Frequency Waves [PDF]

, 2020
We study the solar wind‐driven, nonthermal escape of O+ ions from Venus in a global hybrid simulation. In the model, a well‐developed ion foreshock forms ahead of the Venusian quasi‐parallel bow shock under nominal upstream conditions.
Childs H., Esa Kallio, Keiling A., Markku Alho, Riku Jarvinen, Tuija, I. Pulkkinen   +5 more
core   +1 more source

Determining the Magnetopause Location With SMILE‐SXI Using a Constrained Solar Wind Independent SWCX Model

Journal of Geophysical Research: Space Physics, Volume 131, Issue 1, January 2026.
Abstract The soft X‐ray imager (SXI) on the SMILE mission promises to revolutionize our understanding of the magnetopause by observing solar wind charge exchange emission from the magnetosheath on a global scale. The primary goal of this instrument is to infer the position and shape of the magnetopause from these images.
S. J. Wharton, J. A. Carter, S. Sembay, A. Paganini, V. Maddi, C. Pagani, Z. Clare, A. Samsonov   +7 more
wiley   +1 more source

Spontaneous Hot Flow Anomalies in Earth's Foreshock

Journal of Geophysical Research: Space Physics, Volume 130, Issue 12, December 2025.
Abstract In recent years, we have learned that foreshock transients play an influential role in solar wind coupling with Earth's magnetosphere. These transients include spontaneous hot flow anomalies (SHFAs), which are characterized by dips in magnetic field magnitude and ion density, enhanced temperature, decelerated and deflected solar wind flow, and
D. Rojas‐Castillo, X. Blanco‐Cano, P. Kajdič   +2 more
wiley   +1 more source

Response Functions to Critical Shocks in Social Sciences: An Empirical and Numerical Study

, 2004
We show that, provided one focuses on properly selected episodes, one can apply to the social sciences the same observational strategy that has proved successful in natural sciences such as astrophysics or geodynamics. For instance, in order to probe the
B. M. ROEHNER, D. SORNETTE, De Podesta M., Dellago C., Durkheim E., Helmstetter A., J. V. ANDERSEN, Johansen A., Milgram S., Morse P.-M., Roehner B. M., Romer D., Scard J., Schumpeter J. A., Sornette D., Sornette D., Sornette D., Stauffer D., van Donselaar J., Varshney A.   +19 more
core   +1 more source

Energy Conversion and Exchange in a Magnetosheath Jet

Journal of Geophysical Research: Space Physics, Volume 130, Issue 11, November 2025.
Abstract Magnetosheath jets are regions with an extremely large dynamic pressure compared to that of the background plasma. We present a case study of a magnetosheath jet examining energy conversion processes and its interaction with the surrounding magnetosheath plasma.
O. W. Roberts, Z. Vörös, A. Settino, F. Koller, S. Raptis, M. Temmer, C. Simon Wedlund, X. Li, R. Nakamura   +8 more
wiley   +1 more source