CH₄ Ice at 10 K
| Sample Type | Ice |
|---|---|
| Components | CH₄ |
| Ratio | 1 |
| Substrate | CsI |
| Phase / State | |
| Reference Temperature | 10 K |
| Wavenumber (cm⁻¹) | 3.078 - 3699.7 |
| Wavelength (µm) | 2.703 - 3248.8 |
Methane (CH₄) ice deposited at 10 K onto a cesium iodide (CsI) substrate, and held at 10 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 10 K, by infrared transmission spectroscopy from 3700 to 1000 cm⁻¹ with a resolution of 1 cm⁻¹ across the CH₄ features and 2 cm⁻¹ across the rest of the spectrum.
The transmission (T) spectrum is also provided in this dataset.
More information can be found in the publication and on the OCdb contributor's page.
Any use of this data should recognize the parent publication(s):
Hudgins, D. M., Sandford, S. A., Allamandola, L. J. and Tielens, A. G. G. M. (1993) 'Mid- and Far-Infrared Spectroscopy of Ices: Optical Constants and Integrated Absorbances', The Astrophysical Journal Supplement Series, 86, pp. 713-870.