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2013MNRAS.434..862P - Mon. Not. R. Astron. Soc., 434, 862-869 (2013/September-1)
On the carbonaceous carriers of infrared plateau and continuum emission.
PAPOULAR R.
Abstract (from CDS):
The absorptivities and absorption cross-sections per interstellar H atom deduced from these spectra are comparable with those of laboratory dust analogues and astronomical measurements, respectively. Moreover, the 5-35µm spectra of two typical protoplanetary nebulae were reasonably well simulated with combinations of molecules containing functional groups which carry the 21- and 30-µm bands, and molecules devoid of these but carrying strong phonon spectra.
These results may help understand the emergence of plateaus, the origin of continua underlying far-IR bands, as well as the composition of circumstellar dust.
Abstract Copyright: © 2013 The Author Published by Oxford University Press on behalf of the Royal Astronomical Society (2013)
Journal keyword(s): astrochemistry - dust, extinction - ISM: lines and bands - planetary nebulae: general
Simbad objects: 4
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