Three-dimensional tomography of heliospheric features using Thomson scattering data

Pierre Paul Hick; Bernard V. Jackson

doi:10.1117/12.330246

2 November 1998 Three-dimensional tomography of heliospheric features using Thomson scattering data

Proceedings Volume 3442, Missions to the Sun II; (1998) https://doi.org/10.1117/12.330246
Event: SPIE's International Symposium on Optical Science, Engineering, and Instrumentation, 1998, San Diego, CA, United States

Abstract

All-sky cameras for viewing the heliosphere in white light are included in the design of several future spacecraft missions. The first of these to ge put in Earth-orbit will be the solar mass ejection imager, a joint project of the US Air FOrce, NASA, and the University of Birmingham, UK. Other missions, including an all-sky imager in their current design, are STEREO, Solar Probe and Solar Probe Sail. The white-light signal includes Thomson-scattered light from heliospheric electrons, which can be used to study the structure and evolution of large-scale heliospheric features. These studies are the principal reason for putting all-sky cameras in Earth-orbit or deep space. We discuss a tomographic technique, which uses the 2D information in the all-sky images provided by these cameras to reconstruct the heliospheric density structure in 3D. We present preliminary results of this tomographic technique applied to Thomson scattering data from the photometers onboard the two HELIOS spacecraft.

Citation Download Citation

Pierre Paul Hick and Bernard V. Jackson "Three-dimensional tomography of heliospheric features using Thomson scattering data", Proc. SPIE 3442, Missions to the Sun II, (2 November 1998); https://doi.org/10.1117/12.330246

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