Articles | Volume 36, issue 4
Ann. Geophys., 36, 1081–1097, 2018
https://doi.org/10.5194/angeo-36-1081-2018
Ann. Geophys., 36, 1081–1097, 2018
https://doi.org/10.5194/angeo-36-1081-2018
Regular paper
08 Aug 2018
Regular paper | 08 Aug 2018

Cavitons and spontaneous hot flow anomalies in a hybrid-Vlasov global magnetospheric simulation

Xochitl Blanco-Cano et al.

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Cited articles

Archer, M. O., Horbury, T. S., Eastwood, J. P., Weygand, J. M., and Yeoman, T. K.: Magnetospheric response to magnetosheath pressure pulses: A low-pass filter effect, J. Geophys. Res.-Space, 118, 5454–5466, https://doi.org/10.1002/jgra.50519, 2013. a
Bale, S. D., Balikhin, M. A., Horbury, T. S., Krasnoselskikh, V. V., Kucharek, H., Möbius, E., Walker, S. N., Balogh, A., Burgess, D., Lembège, B., Lucek, E. A., Scholer, M., Schwartz, S. J., and Thomsen, M. F.: Quasi-perpendicular Shock Structure and Processes, Space Sci. Rev., 118, 161–203, https://doi.org/10.1007/s11214-005-3827-0, 2005. a
Blanco-Cano, X., Omidi, N., and Russell, C. T.: Macrostructure of collisionless bow shocks: 2. ULF waves in the foreshock and magnetosheath, J. Geophys. Res., 111, A10205, https://doi.org/10.1029/2005JA011421, 2006. a
Blanco-Cano, X., Omidi, N., and Russell, C. T.: Global hybrid simulations: Foreshock waves and cavitons under radial interplanetary magnetic field geometry, J. Geophys. Res., 114, A01216, https://doi.org/10.1029/2008JA013406, 2009. a, b, c
Blanco-Cano, X., Kajdič, P., Omidi, N., and Russell, C. T.: Foreshock cavitons for different interplanetary magnetic field geometries: Simulations and observations, J. Geophys. Res., 116, A09101, https://doi.org/10.1029/2010JA016413, 2011. a
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Short summary
We use the Vlasiator code to study the characteristics of transient structures that exist in the Earth's foreshock, i.e. upstream of the bow shock. The structures are cavitons and spontaneous hot flow anomalies (SHFAs). These transients can interact with the bow shock. We study the changes the shock suffers via this interaction. We also investigate ion distributions associated with the cavitons and SHFAs. A very important result is that the arrival of multiple SHFAs results in shock erosion.