Results 51 to 60 of about 5,765 (201)

3-D global hybrid simulations of magnetospheric response to foreshock processes

Earth, Planets and Space, 2021
It has been suggested that ion foreshock waves originating in the solar wind upstream of the quasi-parallel (Q-||) shock can impact the planetary magnetosphere leading to standing shear Alfvén waves, i.e., the field line resonances (FLRs). In this paper,
Feng Shi, Yu Lin, Xueyi Wang, Boyi Wang, Yukitoshi Nishimura   +4 more
doaj   +1 more source

Non-resonant Alfv\'enic instability activated by high temperature of ion beams in compensated-current astrophysical plasmas

, 2018
Context: Compensated-current systems are established in response to hot ion beams in terrestrial foreshock regions, around supernova remnants, and in other space and astrophysical plasmas.
De Keyser, Johan, Malovichko, Pavlo, Voitenko, Yuriy   +2 more
core   +1 more source

Large‐Scale Magnetosheath Jets Formed by Shock‐Discontinuity Interactions: A Three‐Dimensional Global Hybrid Simulation

Geophysical Research Letters, Volume 53, Issue 9, 16 May 2026.
Abstract Magnetosheath high‐speed jets with enhanced dynamic pressure are common in Earth's magnetosheath and can impinge on the magnetopause, driving pronounced boundary deformation. Recent observations indicate that shock–discontinuity interactions (SDIs) can generate magnetosheath jets, but the formation mechanism is still unclear.
Jin Guo, San Lu, Quanming Lu, Yufei Zhou, Boyi Wang, Tianran Sun, Yihong Guo, Zhongwei Yang, Shimou Wang, Junyi Ren, Jiuqi Ma, Chao Shen, Xinliang Gao, Rongsheng Wang   +13 more
wiley   +1 more source

Simulations of Electron Acceleration at Collisionless Shocks: The Effects of Surface Fluctuations [PDF]

, 2006
Energetic electrons are a common feature of interplanetary shocks and planetary bow shocks, and they are invoked as a key component of models of nonthermal radio emission, such as solar radio bursts.
Anderson K. A., Cairns I. H., D. Burgess, Fitzenreiter R. J., Gosling J. T., Knock S. A., Krauss-Varban D., Krauss-Varban D., Krauss-Varban D., Leroy M. M., Lowe R. E., Scholer M., Tsurutani B. T., Winske D., Wu C. S.   +14 more
core   +2 more sources

Large Earthquakes Along the Mendocino Oceanic Transform Fault Hardly Have Any Foreshocks

Geophysical Research Letters, Volume 53, Issue 9, 16 May 2026.
Abstract Compared to continental strike‐slip faults, oceanic transform faults (OTFs) are thought to mainly slip aseismically and host significantly more foreshocks triggered by precursory aseismic slip which enhance the mainshocks' short‐term predictability. However, long‐term high‐resolution observational constraints remain limited.
Hui Liu, Min Liu, Yen Joe Tan
wiley   +1 more source

The 2025 Mw 8.8 Kamchatka Megathrust: A Rapid Recurrence With Complex Heterogeneous Rupture

Geophysical Research Letters, Volume 53, Issue 9, 16 May 2026.
Abstract On 29 July 2025, a Mw 8.8 earthquake struck Kamchatka, ∼50 km from the 1952 Mw 9.0 megathrust hypocenter, exhibiting a comparable aftershock zone. We resolve the kinematic rupture process and slip distribution by combining teleseismic waveforms with high‐quality tsunami data.
Junpeng Li, Zhe Jia
wiley   +1 more source

Kinetic-scale magnetic turbulence and finite Larmor radius effects at Mercury

, 2011
We use a nonstationary generalization of the higher-order structure function technique to investigate statistical properties of the magnetic field fluctuations recorded by MESSENGER spacecraft during its first flyby (01/14/2008) through the near Mercury ...
Alexandrova, Alexandrova, Alexandrova, Anderson, Anderson, Anderson, Angelopoulos, Antonova, B. J. Anderson, Baker, Baumjohann, Baumjohann, Biskamp, Blomberg, Boardsen, Boardsen, Borovsky, Borovsky, Borovsky, Büchner, Carreras, Chang, Chen, Delcourt, Delcourt, E. F. Donovan, Eastwood, Eastwood, Fairfield, Fujimoto, Fujimoto, G. V. Khazanov, Glassmeier, H. Korth, J. A. Slavin, Khazanov, Khazanov, Klimas, Kolmogorov, Korth, Lazarian, Li, Liu, Matthaeus, Matthaeus, Meyrand, Mininni, Monin, Mukai, Nagai, Nakamura, Ogilvie, Omidi, Panov, Politano, Pouquet, Pulkkinen, Raines, Roberts, Robinson, S. A. Boardsen, Sahraoui, Sahraoui, Schekochihin, Schekochihin, Sergeev, Servidio, Shiokawa, Singh, Slavin, Slavin, Slavin, Slavin, Slavin, Slavin, Slavin, Solomon, Stepanova, Stepanova, Sundberg, Terasawa, Trávníček, Tsyganenko, Uritsky, Uritsky, Uritsky, V. M. Uritsky, Vörös, Warhaft, Yordanova   +89 more
core   +1 more source

Kinetically modified parametric instabilities of circularly-polarized Alfven waves: Ion kinetic effects [PDF]

, 2006
Parametric instabilities of parallel propagating, circularly polarized finite amplitude Alfven waves in a uniform background plasma is studied, within a framework of one-dimensional Vlasov description for ions and massless electron fluid, so that kinetic
Hada, Tohru, Nariyuki, Yasuhiro
core   +2 more sources

Stress Field and Megathrust Strength in the Western Hellenic Subduction System: Insights From the 2024 Mw 5.9 Strofades Earthquake Sequence, Greece

Geophysical Research Letters, Volume 53, Issue 9, 16 May 2026.
Abstract A M5.9 earthquake occurred on 29 March 2024, offshore near the Strofades Islands, in the western Hellenic Subduction System. Here we present high‐precision earthquake locations and focal mechanisms that suggest the rupture of a NNE‐SSW striking, left‐lateral strike‐slip fault.
G. M. Bocchini, D. Essing, I. Nikolopoulou, A. Dielforder, M. P. Roth, A. Serpetsidaki, E. Sokos, C. P. Evangelidis, R. M. Harrington   +8 more
wiley   +1 more source

Strong foreshock signal preceding the L'Aquila (Italy) earthquake (M_w 6.3) of 6 April 2009 [PDF]

Natural Hazards and Earth System Sciences, 2010
We used the earthquake catalogue of INGV extending from 1 January 2006 to 30 June 2009 to detect significant changes before and after the 6 April 2009 L'Aquila mainshock (Mw=6.3) in the seismicity rate, r (events/day), and in b-value.
G. Minadakis, A. Fokaefs, M. Charalampakis, G. A. Papadopoulos   +3 more
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