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Persistent URL http://purl.org/net/epubs/work/11259811
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Record Id 11259811
Title About the Solar Mass Ejection Imager (SMEI) 3D-Reconstruction-and-Display of Co-rotating Heliospheric Structure during the Present Deep Solar Minimum
Abstract Observations of the inner heliosphere from the Solar Mass Ejection Imager (SMEI) since its launch in early 2003 have been used to measure and map the outward flow of over 300 coronal mass ejections (CMEs). Here, we report on observations and three-dimensional (3D) reconstructions of co-rotating heliospheric structures observed by SMEI during the present deep solar minimum. There is little evidence of large, continuous density structures that co-rotate over the long term (for durations of several weeks) throughout this solar minimum time period. We compare the SMEI evidence of co-rotating density structures with 3D reconstructions of interplanetary scintillation (IPS) velocity observations, and generally with in-situ solar wind measurements from the SOHO, Wind, ACE, and twin STEREO spacecraft. If we define co-rotating heliospheric structure by these in-situ measurements or by the IPS 3D-reconstruction velocity analyses, a general pattern emerges for co-rotating heliospheric density structure in Thomson-scattering observations. The density enhancements shown in brightness difference images that co-rotate and that emanate from specific regions on the Sun appear to expand to a far larger extent than a single heliospheric current sheet region, or than the standing density structures near their origin on the solar surface.
Organisation SSTD , STFC
Keywords {Clover}, J.~M , Jackson}, B. and {Bisi}, M.~M. and {Hick}, P.~P. and {Buffington}, A. and
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Language English (EN)
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Presentation Presented at AGU Fall Meeting 2009, San Francisco, California, USA, December 2009. 2009