Articles | Volume 37, issue 4
29 Aug 2019
Comment/reply |  | 29 Aug 2019

Comment on “Cavitons and spontaneous hot flow anomalies in a hybrid-Vlasov global magnetospheric simulation” by Blanco-Cano et al. (2018)

Gábor Facskó

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Subject: Magnetosphere & space plasma physics | Keywords: Bow shock and foreshock
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Foreshock cavitons and spontaneous hot flow anomalies: a statistical study with a global hybrid-Vlasov simulation
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Cited articles

Blanco-Cano, X., Battarbee, M., Turc, L., Dimmock, A. P., Kilpua, E. K. J., Hoilijoki, S., Ganse, U., Sibeck, D. G., Cassak, P. A., Fear, R. C., Jarvinen, R., Juusola, L., Pfau-Kempf, Y., Vainio, R., and Palmroth, M.: Cavitons and spontaneous hot flow anomalies in a hybrid-Vlasov global magnetospheric simulation, Ann. Geophys., 36, 1081–1097,, 2018. a
Facskó, G., Trotignon, J. G., Dandouras, I., Lucek, E. A., and Daly, P. W.: Study of hot flow anomalies using Cluster multi-spacecraft measurements, Adv. Space Res., 45, 541–552,, 2010. a
Kecskeméty, K., Erdős, G., Facskó, G., Tátrallyay, M., Dandouras, I., Daly, P., and Kudela, K.: Distributions of suprathermal ions near hot flow anomalies observed by RAPID aboard Cluster, Adv. Space Res., 38, 1587–1594,, 2006. a
Lin, Y.: Global hybrid simulation of hot flow anomalies near the bow shock and in the magnetosheath, Planet. Space Sci., 50, 577–591,, 2002.  a
Omidi, N., Zhang, H., Sibeck, D., and Turner, D.: Spontaneous hot flow anomalies at quasi-parallel shocks: 2. Hybrid simulations, J. Geophys. Res.-Space, 118, 173–180,, 2013. a, b, c
Short summary
Blanco-Cano et al. (2018) intended to find a type of transient event in the solar wind before the terrestrial bow shock using a special type of simulation. However, the simulation results cannot reproduce the main features of the event. Based on the remarks described below, I am sure that the features in the simulations are not those types of events. The Vlasiator code simulated proto-SHFAs.