The First EUVI Images Seen Without Stray Light

Details The First EUVI Images Seen Without Stray Light The First EUVI Images Seen Without Stray Light

Dec 2011

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2011agufmsh34b..04f&link_type=abstract

American Geophysical Union, Fall Meeting 2011, abstract #SH34B-04

Astronomy and Astrophysics

Astrophysics

[7594] Solar Physics, Astrophysics, And Astronomy / Instruments And Techniques

Scientific paper

All solar EUV images are significantly degraded by diffraction from the entrance aperture and scattering from the micro-imperfections of the mirrors, with the latter leading to very long range effects covering the whole image. Since the scattering functions are not known, the correction presented here is a result of semi-blind deconvolution specifically aimed at removing the effects of the broad wings of the scattering. Our analysis utilizes the lunar transit seen by STEREO-B on 25 Feb 2007. We show that many structures, especially coronal holes and the off-limb, are dominated by scattered light.

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