SMEI 3D Reconstruction of a Coronal Mass Ejection Interacting with a Corotating Solar Wind Density Enhancement: The 2008 April 26 CME

Details SMEI 3D Reconstruction of a Coronal Mass Ejection Interacting with a Corotating Solar Wind Density Enhancement: The 2008 April 26 CME SMEI 3D Reconstruction of a Coronal Mass Ejection Interacting with a Corotating Solar Wind Density Enhancement: The 2008 April 26 CME

Dec 2010

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2010apj...724..829j&link_type=abstract

The Astrophysical Journal, Volume 724, Issue 2, pp. 829-834 (2010).

Astronomy and Astrophysics

Astronomy

3

Solar-Terrestrial Relations, Solar Wind, Sun: Coronal Mass Ejections: Cmes, Sun: Heliosphere, Sun: Rotation

Scientific paper

The Solar Mass Ejection Imager (SMEI) has recorded the brightness responses of hundreds of interplanetary coronal mass ejections (CMEs) in the interplanetary medium. Using a three-dimensional (3D) reconstruction technique that derives its perspective views from outward-flowing solar wind, analysis of SMEI data has revealed the shapes, extents, and masses of CMEs. Here, for the first time, and using SMEI data, we report on the 3D reconstruction of a CME that intersects a corotating region marked by a curved density enhancement in the ecliptic. Both the CME and the corotating region are reconstructed and demonstrate that the CME disrupts the otherwise regular density pattern of the corotating material. Most of the dense CME material passes north of the ecliptic and east of the Sun-Earth line: thus, in situ measurements in the ecliptic near Earth and at the Solar-TErrestrial RElations Observatory Behind spacecraft show the CME as a minor density increase in the solar wind. The mass of the dense portion of the CME is consistent with that measured by the Large Angle Spectrometric Coronagraph on board the Solar and Heliospheric Observatory spacecraft, and is comparable to the masses of many other three-dimensionally reconstructed solar wind features at 1 AU observed in SMEI 3D reconstructions.

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