First Results from the Solar Optical Telescope on Hinode

Details First Results from the Solar Optical Telescope on Hinode First Results from the Solar Optical Telescope on Hinode

May 2007

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2007aas...210.6301t&link_type=abstract

American Astronomical Society Meeting 210, #63.01; Bulletin of the American Astronomical Society, Vol. 39, p.171

Computer Science

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Scientific paper

The Solar Optical Telescope (SOT) is a joint project of the National Observatory of Japan and the Lockheed Martin Solar and Astrophysical Laboratory. SOT consists of a 50 cm Gregorian telescope optimized to reduce instrumental polarization and the Focal Plane Package (FPP). FPP contains a version of the Advanced Stokes Polarimeters developed by the High Altitude Observatory, a broadband filter system, and a tunable birefringent filter. A correlation tracker in the FPP sends a control signal to an active mirror in the telescope. Both the telescope and the active mirror were developed by the National Astronomical Observatory of Japan. The correlation tracking system reduces image motion in the focal planes to +/- 0.02 arcseconds. The diffraction limited performance of the SOT coupled with large format CCD’s and high data rates have allowed the construction of high resolution line of sight and vector magnetograms and imaging of phenomena on solar surface and off the solar limb. This data are providing new insights into the processes of flux emergence and disappearance from the scale of granulation to active regions. High cadence observations of filaments, prominences, and spicules have revealed surprising evolutionary features that include alfven waves, current systems, and rapid reconnection. Movies of many of these phenomena will be shown.

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