Physics
Scientific paper
Dec 2010
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2010agufmsh23b1859g&link_type=abstract
American Geophysical Union, Fall Meeting 2010, abstract #SH23B-1859
Physics
[2100] Interplanetary Physics, [2101] Interplanetary Physics / Coronal Mass Ejections, [2111] Interplanetary Physics / Ejecta, Driver Gases, And Magnetic Clouds, [2139] Interplanetary Physics / Interplanetary Shocks
Scientific paper
We analyze the heliocentric evolution of fast Interplanetary counterparts of Coronal Mass Ejections (ICMEs) and their transient shocks to investigate how and where they decelerate in the interplanetary medium. We employ two one-dimensional hydrodynamic models: analytic and numeric, to study three fast CME events. We focus on the transferring of momentum from the ICME to the shock. Initially the fast ICME propagates at about a constant speed and drives the shock (driving stage) until it reaches a certain point from which it decelerates and decouples from the shock (decoupling process). Then the ICME and its shock decelerate (decaying stage). We perform three study cases to compare the model's predictions with a set of speed measurements of ICME/shock events.
Corona-Romero P.
Gonzalez-Esparza Americo
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