Yohkoh/SXT x-ray synoptic maps of coronal brightness and temperature

Details Yohkoh/SXT x-ray synoptic maps of coronal brightness and temperature Yohkoh/SXT x-ray synoptic maps of coronal brightness and temperature

Jun 1995

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1995sowi.conf...68s&link_type=abstract

Lockheed Aircraft Corp., International Solar Wind 8 Conference, p. 68

Astronomy and Astrophysics

Astronomy

X Ray Telescopes, Brightness Temperature, Coronagraphs, Coronas, Astronomical Maps, Optical Filters, Electron Energy, Broadband, Sampling

Scientific paper

The Yohkoh soft X-ray telescope (SXT) records on the order of 50 solar images per day in two different color filters. These provide material for the generation of synoptic maps, which compress the 3-dimensional data cube into two dimensions. We are creating synoptic maps from strips of data both at disk center and at different heights, including limb maps that are analogous to those produced by ground-based coronagraphs. The ratios of intensities in images taken in two filters provide estimates of the electron temperature in the range 1 - 3 x 106 K. These are broad-band temperature maps; rather than maps created with discrete sampling as in the case of the coronal green and red lines. We discuss the properties of these maps and their application to the study of energy release in the corona.

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