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http://dx.doi.org/10.5303/PKAS.2015.30.2.155

ORGANIC DUST IN THE INTERSTELLAR MEDIUM  

KWOK, SUN (Space Astronomy Laboratory, Faculty of Science, The University of Hong Kong)
Publication Information
Publications of The Korean Astronomical Society / v.30, no.2, 2015 , pp. 155-158 More about this Journal
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.
Keywords
interstellar dust; infrared spectroscopy; fullerene; PAH; unidentified infrared emission bands;
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