Results 71 to 80 of about 17,759 (228)

Cluster magnetic field observations at a quasi-parallel bow shock [PDF]

Annales Geophysicae, 2002
We present four-point Cluster magnetic field data from a quasi-parallel shock crossing which allows us to probe the three-dimensional structure of this type of shock for the first time. We find that steepened ULF waves typically have a scale larger
E. A. Lucek, E. A. Lucek, T. S. Horbury, M. W. Dunlop, P. J. Cargill, S. J. Schwartz, A. Balogh, P. Brown, C. Carr, K.-H. Fornacon, E. Georgescu, E. Georgescu   +11 more
doaj   +1 more source

The effects of stellar winds and magnetic fields on exoplanets

, 2013
The great majority of exoplanets discovered so far are orbiting cool, low-mass stars whose properties are relatively similar to the Sun. However, the stellar magnetism of these stars can be significantly different from the solar one, both in topology and
Vidotto, A. A.
core   +1 more source

Continuous and Burst-like Accretion onto Substellar Companions in Mira Winds [PDF]

, 2003
We present numerical hydrodynamical modeling of the effects of a giant planet or brown dwarf companion orbiting within the extended atmosphere and wind formation zone of an approximately solar-mass Mira variable star.
Babak E. Cohanim, Balick, Benensohn, Bondi, Bowen, Cowie, Curtis Struck, de Laverny, Foglizzo, Foglizzo, Frink, Fryxell, Fryxell, Gail, Hartquist, Hill, Ho, Hoyle, Humphreys, Ishii, Kemball, Kerschbaum, Lee Anne Willson, Liu, Livio, Livio, Lucas, Marcy, Marcy, Mastrodemos, Mastrodemos, Phillips, Pijpers, Pogorelov, Reid, Ruffert, Ruffert, Ruffert, Ruffert, Ruffert, Ruffert, Shapiro, Shu, Soker, Soker, Soker, Soker, Soker, Soker, Spitzer, Struck, Struck, Struck-Marcell, Taam, Taam, Taam, Willson, Willson, Zapatero Osorio   +58 more
core   +1 more source

Martian Atmospheric Loss Through Foreshock Transient Events

Geophysical Research Letters, Volume 53, Issue 4, 28 February 2026.
Abstract At Mars, the MAVEN spacecraft has made observations of Hot Flow Anomalies (HFAs) in the foreshock. Due to the bow shock's proximity to the planet, it is theorized that HFAs contribute to atmospheric escape at Mars through the excavation of ionospheric ions.
Alexandros C. Cooke‐Politikos, Sergey Shuvalov, Yaxue Dong, Yi Qi, David A. Brain, Jasper S. Halekas   +5 more
wiley   +1 more source

Energy Dissipation in Strong Collisionless Shocks: The Crucial Role of Ion-to-electron Scale Separation in Particle-in-cell Simulations

The Astrophysical Journal Letters
Energy dissipation in collisionless shocks is a key mechanism in various astrophysical environments. Its nonlinear nature complicates analytical understanding and necessitates particle-in-cell (PIC) simulations. This study examines the impact of reducing
Mohamad Shalaby
doaj   +1 more source

Electron Acceleration and Heating during Magnetic Reconnection in the Earth's Quasi-parallel Bow Shock

The Astrophysical Journal, 2023
We perform a 2.5-dimensional particle-in-cell simulation of a quasi-parallel shock, using parameters for the Earth’s bow shock, to examine electron acceleration and heating due to magnetic reconnection.
N. Bessho, L.-J. Chen, M. Hesse, J. Ng, L. B. Wilson III, J. E. Stawarz   +5 more
doaj   +1 more source

Different types of ion populations upstream of the 8 October 2013 interplanetary shock

, 2017
We show for the first time that different types of suprathermal ion distributions may exist upstream of a single interplanetary shock. ACE and the two ARTEMIS satellites observed a shock on 8 October 2013.
Cano, Xochitl Blanco, Hietala, Heli, Kajdic, Primoz   +2 more
core   +1 more source

Reconstructing the Geometry of a Hot Flow Anomaly With Bounding Jets in Magnetosheath

Geophysical Research Letters, Volume 53, Issue 3, 16 February 2026.
Abstract When interplanetary magnetic field discontinuities interact with planetary bow shocks, hot flow anomalies (HFAs) form in the solar wind and can extend into the magnetosheath. Here we reconstruct the three‐dimensional geometry of an HFA bounded by two jet regions in the terrestrial magnetosheath.
Yufei Zhou, Boyi Wang, Savvas Raptis, Shan Wang, Jin Guo, Jih‐Hong Shue, David Sibeck, Quanming Lu, Jiamei Zhang, Chao Shen, Rungployphan Kieokaew, C. Philippe Escoubet, Peng Shao, James Burch   +13 more
wiley   +1 more source

The Structure and Kinetic Ion Behavior of Low Mach Number Shocks [PDF]

Journal of Geophysical Research: Space Physics
Low Mach number collisionless shocks are routinely observed in the solar wind and upstream of planetary bodies. However, most in situ observations have lacked the necessary temporal resolution to directly study the kinetic behavior of ions across these ...
D. B. Graham, Y. Khotyaintsev
semanticscholar   +1 more source

Quasiperpendicular high Mach number Shocks

, 2015
Shock waves exist throughout the universe and are fundamental to understanding the nature of collisionless plasmas. Reformation is a process, driven by microphysics, which typically occurs at high Mach number supercritical shocks.
Burgess, D., Dougherty, M. K., Fujimoto, M., Hospodarsky, G. B., Masters, A., Sulaiman, A. H.   +5 more
core   +1 more source