Physics
Scientific paper
Dec 2001
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2001agufmsh11d..09g&link_type=abstract
American Geophysical Union, Fall Meeting 2001, abstract #SH11D-09
Physics
2111 Ejecta, Driver Gases, And Magnetic Clouds
Scientific paper
Recently Gopalswamy et al. [2000] studied observations of ICMEs by WIND spacecraft and correlated these observations with CMEs detected previously by SOHO coronographs. They found that the Sun-Earth mean acceleration of these events was approximately proportional to their initial speeds, and they suggest that this result could be used for space weather forecasting. In this work we perform a parametric study of several CME like disturbances propagating in two different ambient winds using a one dimensional, single fluid, hydrodynamic model, to study the kinematics of the CME fronts near the Sun to 1 AU. These 1-D simulations of interplanetary disturbances have shown to be very useful to understand the basic physical aspects of the injection and heliospheric evolution of these phenomena. In this work we explore how the CME acceleration and transit time from near the Sun to 1 AU varies depending on the CME initial conditions and the ambient solar wind.
Gonzalez-Esparza Americo
Gopalswamy Nat
Lara Alejandro
Pérez-Tijerina Eduardo
Santillan Alfredo
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