3 papers
astro-ph.IM2026
The Wide Field Imager (WFI) Instruments for the Polarimeter to Unify the Corona and Helliosphere (PUNCH)
Glenn T. Laurent, Craig E. DeForest, Matt N. Beasley +14
We describe the design, hardware integration, and calibration performance of the Wide-Field Imager (WFI) instruments for the Polarimeter to Unify the Corona and Heliosphere (PUNCH)…
astro-ph.IM2024
A Simplified Theory of External Occulters for Solar Coronagraphs
Craig E. DeForest, Nicholas F. Erickson, Matthew N. Beasley +3
We present a first-principles analytic treatment of modern multi-vane occulters in circular (coronagraph) and linear (heliospheric imager) geometry, develop a simplified theory tha…
astro-ph.SR2024
Observations of the Polarized Solar Corona during the Annular Eclipse of October 14, 2023
Daniel B. Seaton, Amir Caspi, Nathalia Alzate +10
We present results of a dual eclipse expedition to observe the solar corona from two sites during the annular solar eclipse of 2023 October 14, using a novel coronagraph designed t…