ICARUS is the official publication of the Division for Planetary Sciences of the American Astronomical Society and is dedicated to reporting the results of new research - observational, experimental, or theoretical - concerning the astronomy, geology, meteorology, physics, chemistry, biology, and other scientific aspects of our Solar System or extrasolar systems.
Imprint: ACADEMIC PRESS
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Measurements of pure CO2 absorption in the 2.3-μm region are presented. The 3800–4700-cm−1 range has been investigated at room temperature for pressures in the 10–50-atm range by using long optical paths. Phenomena that contribute to absorption are listed and analyzed, including the contribution of far line wings as well as those of the central region of both allowed and collision-induced absorption bands. The presence of simultaneous transitions is also discussed. Simple and practical approaches are proposed for the modeling of absorption, which include a line-shape correction factor χ that extends to approximately 600 cm−1 from line centers.
