SH028-0011
The Coronal Diagnostic Experiment (CODEX)

Friday, 11 December 2020
Poster
Jeffrey S Newmark1, Nat Gopalswamy2, Yeon-Han Kim3, Nicholeen M Viall4, Kyung-Suk F Cho5, Nelson Leslie Reginald4, Su-Chan Bong6, Qian Gong1, Seonghwan Choi6, Leonard Strachan7 and Seiji Yashiro8, (1)NASA Goddard Space Flight Center, Greenbelt, MD, United States, (2)NASA Goddard SFC, Greenbelt, MD, United States, (3)Korea Astronomy and Space Science Institute, Daejeon, South Korea, (4)NASA GSFC, Greenbelt, MD, United States, (5)KASI, Daejeon, South Korea, (6)KASI Korea Astronomy and Space Science Institute, Daejeon, South Korea, (7)US Naval Research Laboratory, Washington, DC, United States, (8)Catholic University of America, Washington, DC, United States
Abstract:
Understanding solar wind sources and acceleration mechanisms is an overarching solar physics goal. Current models are highly under-constrained due to the limitations of the existing data, particularly in the ~3-10 Rs range. COronal Diagnostic EXperiment (CODEX) is designed to deliver the first global, comprehensive data sets that will impose crucial constraints and answer targeted essential questions, including: Are there signatures of hot plasma released into the solar wind from previously closed fields? What are the velocities and temperatures of the density structures that are observed so ubiquitously within streamers and coronal holes?

To provide these crucial measurements, NASA’s Goddard Space Flight Center, in collaboration with the Korea Astronomy and Space Science Institute, will develop a next-generation coronagraph for the International Space Station. This imaging coronagraph uses multiple filters to obtain simultaneous measurements of electron density, temperature, and velocity within a single instrument. This will be the first time all three have been measured simultaneously for this critical field-of-view, and CODEX achieves these measurements multiple times a day.

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