Unidentified Infrared Emission Bands
The term unidentified infrared emission (UIE) bands refers to a family of emission features observed in a variety of astronomical sources, including the aromatic features at 3.3, 6.2, 7.7, 8.6, and 11.3 μm; aliphatic features at 3.4 and 6.9 μm; and broad emission plateaus at 8, 12, and 17 μm, as well as a host of weaker features that are too broad to be atomic or molecular lines.
KeywordsPolycyclic Aromatic Hydrocarbon Emission Feature Central Star Planetary Nebula Young Stellar Object
References and Further Reading
- Cataldo F, Keheyan Y, Heymann DA (2002) New model for the interpretation of the unidentified infrared bands (UIBS) of the diffuse interstellar medium and of the protoplanetary nebulae. Int J Astrobiol 1:79–86Google Scholar