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The Korean Astronomical Society (한국천문학회)
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ORGANIC DUST IN THE INTERSTELLAR MEDIUM

  • KWOK, SUN (Space Astronomy Laboratory, Faculty of Science, The University of Hong Kong)
  • Received : 2014.11.30
  • Accepted : 2015.06.30
  • Published : 2015.09.30
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Abstract

The traditional view of dust in the interstellar medium is that it is made of graphite and silicates. In this paper, we discuss the evidence for complex organics being a major component of interstellar dust. Comparison between astronomical infrared spectra and laboratory spectra of amorphous carbonaceous materials suggests that organics of mixed aromatic-aliphatic structures are widely present in circumstellar, interstellar, and galactic environments. Scenarios for the synthesis of these compounds in the late stages of stellar evolution are presented.

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References

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