The open archive for STFC research publications

Full Record Details

Persistent URL http://purl.org/net/epubs/work/11260731
Record Status Checked
Record Id 11260731
Title CME 3D Reconstructions Using Solar Mass Ejection Imager and Interplanetary Scintillation Data
Abstract Solar Mass Ejection Imager (SMEI) and interplanetary scintillation (IPS) observations provide a view of the solar wind at all solar elongations; from 180 degrees anti-solar to as close to the Sun as coronagraph fields of view. They can be used to study the evolution of the solar wind and solar transients out into interplanetary space. In addition, the inner heliospheric response to corotating solar structures and coronal mass ejections (CMEs) can be measured, both in scintillation level and in velocity when using IPS, and through Thomson Scattering when using SMEI. We use a 3D reconstruction technique that obtains perspective views from solar corotating plasma and outward-flowing solar wind as observed from Earth, by iteratively fitting a kinematic solar wind model to both SMEI and IPS observations. This 3D modeling technique permits reconstructions of the density and velocity structures of CMEs and other interplanetary transients. These reconstructions have a temporal cadence and heliographic latitudinal and longitudinal resolution predicated by the amount of data used for time-dependent reconstructions, and can use data from a variety of IPS instruments distributed around the Earth. We highlight the 3D analyses of these different data sets using a series of CME events observed beginning on the Sun 4-7 November 2004. We also apply this technique to determine solar wind pressure (\ldquoram\rdquo pressure) at Mars. Results are compared with ram pressure observations derived from Mars Global Surveyor magnetometer data for the years 1999 through 2004, and include a reconstruction of a \ldquoback-side\rdquo event as seen by SOHO/LASCO.
Organisation SSTD , STFC
Funding Information
Related Research Object(s):
Licence Information:
Language English (EN)
Type Details URI(s) Local file(s) Year
Paper In Conference Proceedings Bull Am Astron Soc 39 (2007). 2007