Mixed aromatic–aliphatic organic nanoparticles as carriers of unidentified infrared emission features

@article{Kwok2011MixedAO,
  title={Mixed aromatic–aliphatic organic nanoparticles as carriers of unidentified infrared emission features},
  author={Sun Kwok and Yong Zhang},
  journal={Nature},
  year={2011},
  volume={479},
  pages={80-83}
}
Unidentified infrared emission bands at wavelengths of 3–20 micrometres are widely observed in a range of environments in our Galaxy and in others. Some features have been identified as the stretching and bending modes of aromatic compounds, and are commonly attributed to polycyclic aromatic hydrocarbon molecules. The central argument supporting this attribution is that single-photon excitation of the molecule can account for the unidentified infrared emission features observed in ‘cirrus… 
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