Physics
Scientific paper
Sep 2001
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2001esasp.493....3l&link_type=abstract
In: Solar encounter. Proceedings of the First Solar Orbiter Workshop, 14 - 18 May 2001, Puerto de la Cruz, Tenerife, Spain. Eds.
Physics
2
Sun: Magnetic Field
Scientific paper
The polarimetric imager on Solar Orbiter will follow the realization of significant space- and ground-based programs for high resolution solar polarimetry in the coming decade. In this review I attempt to identify the scientific potential of Solar Orbiter within the context of anticipated observational capability and scientific understanding ten years from now. The unique contribution of Solar Orbiter is its high resolution imaging from an angular perspective well-removed from that of the Earth. When combined with simultaneous high resolution polarimetry from the perspective of the Earth, Solar Orbiter will provide stereoscopic observations of the fine structure in the solar photospheric magnetic field which will likely reveal the detailed structure on a physical height scale, rather than an optical depth scale. Furthermore, the observations will provide the velocity field components in a plane, rather than along just one line-of-sight. These advances promise tight observational constraints for fundamental processes such as convective collapse, generation and propagation of MHD waves in flux tubes, ultra fine-scale magnetic flux of the quiet Sun internetwork. At some phase of its orbit, the Orbiter will also provide the unique capability to follow the development of solar activity through a large fraction of a complete solar rotation; a capability that should illuminate the processes responsible for active region decay. Finally, the perspective views of Solar Orbiter may permit measurements of vector magnetic fields in the chromosphere without resorting to linear polarimetry.
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