Physics
Scientific paper
Dec 2008
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2008agufmsa53a1563a&link_type=abstract
American Geophysical Union, Fall Meeting 2008, abstract #SA53A-1563
Physics
7509 Corona, 7519 Flares, 7536 Solar Activity Cycle (2162), 7537 Solar And Stellar Variability (1650), 7554 X-Rays, Gamma Rays, And Neutrinos
Scientific paper
Yohkoh was a Japan/US/UK mission for the study of high energy processes on the sun. Scientific operation extended from September 1991 until 14 December 2001, nearly an entire solar activity cycle. Observations included full-disk soft and hard x-ray imaging, hard x-ray spectroscopy, and high resolution flare spectroscopy in S XV, Ca XIX, Fe XXV and Fe XXVI from the Bent Crystal Spectrometer (BCS). The Yohkoh Legacy Archive (YLA) brings together all Yohkoh observational data along with extensive documentation required for a full understanding of instrumentation, mission operations, and data reduction and correction. Extensive meta-data aid the user in efficiently accessing the data base. Creation of the YLA has been the work of 8 years; the top objective has been to present the extensive Yohkoh database in a form fully usable for scientists or students who are unfamiliar with Yohkoh instrumentation. The YLA may be accessed at http://solar.physics.montana.edu/ylegacy or through the Virtual Solar Observatory (VSO), although the VSO capability is still under development. Data from the Yohkoh hard x-ray instruments and BCS are presented in flare list formats. The Soft X-ray Telescope (SXT) images are available in quantitative and movie formats. This long, uniform, archive of SXT images is especially useful for solar cycle studies as well as high resolution soft x-ray flare studies. Examples of YLA data products and research enabled by the archive will be presented.
Acton Loren W.
McKenzie David E.
Takeda Aki
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