Coronal Imaging with the Solar UltraViolet Imager
arXiv:1901.08531 · doi:10.1007/s11207-019-1411-0
Abstract
We investigate the coronal imaging capabilities of the Solar UltraViolet Imager (SUVI) on the Geostationary Operational Environmental Satellite-R series spacecraft. Nominally Sun-pointed, SUVI provides solar images in six Extreme UltraViolet (EUV) wavelengths. On-orbit data indicated that SUVI had sufficient dynamic range and sensitivity to image the corona to the largest heights above the Sun to date while simultaneously imaging the Sun. We undertook a campaign to investigate the existence of the EUV signal well beyond the nominal Sun-centered imaging area of the solar EUV imagers. We off-pointed SUVI line-of-sight by almost one imaging area around the Sun. We present the details of the campaign conducted when the solar cycle is at near the minimum and some results that affirm the EUV presence to beyond three solar radii.
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Cited by in corpus (4)
- The Sun's Dynamic Extended Corona Observed in Extreme Ultraviolet
- Direct observations of a complex coronal web driving highly structured slow solar wind
- Beyond the disk: EUV coronagraphic observations of the Extreme Ultraviolet Imager on board Solar Orbiter
- The SWAP Filter: A Simple Azimuthally Varying Radial Filter for Wide-Field EUV Solar Images