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CO Ice at 25 K


Ice Datasets
Description
Sample Type Ice
Components CO
Ratio 1
Substrate CsI
Phase / State Crystalline
Reference Temperature 25 K
Wavenumber (cm⁻¹) 1500.01 - 3000.02
Wavelength (µm) 3.333 - 6.667

Crystalline carbon monoxide (CO) ice (low-temperature form α-CO) deposited at 25 K onto a cesium iodide (CsI) substrate, and held at 25 K during spectroscopic measurements.

The real (n) and imaginary (k) parts of the complex index of refraction were determined using optical measurements done at a temperature of 25 K, by infrared transmission spectroscopy from 3000 to 1500 cm⁻¹ with a resolution of 1 cm⁻¹.

More information can be found in the publication and on the OCdb contributor's page.

Download data (csv)

n,k,All

References

Any use of this data should recognize the parent publication(s):

Gerakines, P.A., Materese, C. K. and Hudson, R. L. (2023) 'Carbon monoxide ices - a semicentennial review and update for crystalline CO along with the first IR spectrum and band strength for amorphous CO', Monthly Notices of the Royal Astronomical Society, 522, pp. 3145-3162.

https://doi.org/10.1093/mnras/stad1164

n/k Values

Compatible Datasets (i.e., same molecule, phase, and temperature) are marked with *

Select Chemical Ratio Phase / State T (K) Wavelength
Min (µm)
Wavelength
Max (µm)
Compatible n k Reference
CO 1 Crystalline 25 3.333 6.667 * ✓ ✓ Gerakines et al. (2023)
CO 1 10 4.547 4.996 ✓ ✓ Ehrenfreund et al. (1997)
CO 1 10 4.577 4.751 ✓ ✓ Hudgins et al. (1993)
CO 1 12.5 3.846 5.556 ✓ ✓ Baratta and Palumbo (1998)
CO 1 15 3.846 5.882 ✓ ✓ Palumbo et al. (2006)
CO 1 28 25.005 1602.533 ✓ ✓ Gavdush et al. (2022)
CO 1 28.5 128.989 21025.27 ✓ ✓ Giuliano et al. (2019)
CO 1 30 4.55 4.995 ✓ ✓ Ehrenfreund et al. (1997)
CO 1 31.2 128.9 21010.72 ✓ ✓ Giuliano et al. (2019)
CO 1 33.1 141.964 1500.766 ✓ ✓ Giuliano et al. (2019)