Open AccessCOLLISIONLES INTERACTIONS: MAGNETOPAUSE COMMUNICATES WITH BOW SHOCK?
Author(s) -
S. Savin,
G. Pallocchia,
C. Wang,
L. Legen
Publication year - 2019
Publication title -
okeanologičeskie issledovaniâ
Language(s) - English
Resource type - Journals
eISSN - 2587-9634
pISSN - 1564-2291
DOI - 10.29006/1564-2291.jor-2019.47(1).34
Subject(s) - magnetopause , magnetosheath , bow shock (aerodynamics) , foreshock , physics , poynting vector , geophysics , solar wind , shock wave , shock (circulatory) , magnetosphere , flux (metallurgy) , bow wave , mechanics , plasma , geology , magnetic field , seismology , medicine , materials science , quantum mechanics , aftershock , metallurgy
Our analysis of a sunward Poynting flux throughout magnetosheath and foreshock (directly measured byINTERBALL-1, CLUSTER-4 and DOUBLE STAR TC1), for the first time clearly demonstrates, how the resonances in the magnetospheric boundary layers are transmitted back wards the bow shock: the short pulses of the sunward Poynting flux initiate the strongest (>80%!) 3-wave interactions with the incident dynamic pressure. They start in the foreshock, regulate the bow shock position and oscillations, and then another near- magnetopause 3-wave strong interactions assist plasma flow extra deflections and acceleration downstream the magnetopause.