Results 21 to 30 of about 5,898 (199)

Theory Helps Observations: Determination of the Shock Mach Number and Scales From Magnetic Measurements

Frontiers in Physics, 2022
The Mach number is one of the key parameters of collisionless shocks. Understanding shock physics requires knowledge of the spatial scales in the shock transition layer.
Michael Gedalin, Ephim Golbraikh, Christopher T. Russell, Andrew P. Dimmock   +3 more
doaj   +1 more source

Active current sheets and hot flow anomalies in Mercury's bow shock [PDF]

, 2013
Hot flow anomalies (HFAs) represent a subset of solar wind discontinuities interacting with collisionless bow shocks. They are typically formed when the normal component of motional (convective) electric field points toward the embedded current sheet on ...
Anderson, B. J., Boardsen, S. A., Collinson, G., Gershman, D. J., Khazanov, G. V., Korth, H., Raines, J. M., Sibeck, D., Slavin, J. A., Sundberg, T., Uritsky, V. M.   +10 more
core   +1 more source

Influence of Solar Wind Variations on the Shapes of Venus’ Plasma Boundaries Based on Venus Express Observations

The Astrophysical Journal, 2023
The interaction between the solar wind and Venus creates an induced magnetosphere. The regions of the induced magnetosphere are separated by plasma boundaries, where their shapes and sizes are influenced by variations in the surrounding environment ...
C. Signoles, M. Persson, Y. Futaana, S. Aizawa, N. André, S. Bergman, A. Fedorov, V. Lindwall, N. Martinez, C. Mazelle, S. Rojas Mata, A. Wolff, T. L. Zhang   +12 more
doaj   +1 more source

Multiple spacecraft observations of interplanetary shocks: Characteristics of the upstream ULF turbulence [PDF]

, 1982
All interplanetary shocks observed by ISEE-3 and either ISEE-1 or ISEE-2 or both in 1978 and 1979 are examined for evidence of upstream waves. In order to characterize the properties of these shocks it is necessary to determine accurate shock normals. An
Bame, S. J., Gosling, J. T., Russell, C. T., Smith, E. J., Tsurutani, B. T.   +4 more
core   +2 more sources

Rankine–Hugoniot Relations and Magnetic Field Enhancement in Turbulent Shocks

The Astrophysical Journal, 2023
In fast collisionless shocks, the density and magnetic field increase and the plasma is heated. The compression and heating are ultimately determined by the Rankine–Hugoniot relations connecting the upstream and downstream parameters.
Michael Gedalin
doaj   +1 more source

Shock excitation of the knots of Hen 3-1475 [PDF]

, 2006
We present new optical STIS HST spectroscopic observations of the jets of the proto-planetary nebula Hen 3-1475. The excitation conditions of the knots of Hen 3-1475 are derived from the observed optical spectra, confirming that the knots are shock ...
A. C. Raga, A. Riera, Beck, Binette, Borkowski, Borkowski, Bujarrabal, Bujarrabal, Bujarrabal, Castro-Carrizo, Cox, Dopita, Dopita, Dopita, Ferruit, García-Lario, Goncalves, Guerrero, Hartigan, Kingsburgh, L. Binette, Lee, Norman, Raga, Raga, Raga, Raga, Raga, Raymond, Riera, Riera, Riera, Riera, Riera, Sahai, Sahai, Schultz, Schwartz, Shull, Solf, Sánchez Contreras, Trammell, Trammell, Trammell, Trammell, Velázquez, Vázquez   +46 more
core   +2 more sources

Unusual Martian Foreshock Waves Triggered by a Solar Wind Stream Interaction Region

The Astrophysical Journal Letters, 2023
Planetary bow shocks noncollisionally dissipate the incident bulk flow energy of solar wind into some other forms. To what extent and how solar wind disturbances affect the energy dissipation processes at the bow shocks on different planets remain ...
Zhenpeng Su, Yuming Wang, Tielong Zhang, Zhiyong Wu, Long Cheng, Zhuxuan Zou, Chenglong Shen, Jingnan Guo, Sudong Xiao, Guoqiang Wang, Zonghao Pan, Kai Liu, Xinjun Hao, Yiren Li, Manming Chen, Yutian Chi, Mengjiao Xu   +16 more
doaj   +1 more source

Characterization of Saturn's bow shock: magnetic field observations of quasi-perpendicular shocks [PDF]

, 2016
Collisionless shocks vary drastically from terrestrial to astrophysical regimes resulting in radically different characteristics. This poses two complexities.
Dougherty, MK, Masters, A, Sulaiman, AH
core   +1 more source

Planetary Bow Shocks

, 2008
review paper on current state of knowledge about planetary bow shocks, 32 pp, 19 ...
Treumann, R. A., Jaroschek, C. H.
openaire   +2 more sources

Whistler mode waves upstream of Saturn [PDF]

, 2016
Whistler-mode waves are generated within and can propagate upstream of collisionless shocks. They are known to play a role in electron thermodynamics/acceleration and, under certain conditions, are markedly observed as wave trains preceding the shock ...
Dougherty, Michele K, Gurnett, Donald A, Halekas, Jasper S, Kurth, William S, Sulaiman, Ali H, Yates, Japheth N   +5 more
core   +3 more sources