A new component of the interstellar matter - Small grains and large aromatic molecules
J. L. Puget, A. Léger;
ARAA, 1989, 27, 161
ABSTRACT:Predictions from dust models constructed to account for the interstellar extinction curve are in conflict with emission data.
This paper shows
that the introduction of small grains and large aromatic molecules as a new
component of the interstellar matter can resolve this conflict.
Observational
evidence for the existence of very small grains is also reviewed, along with the
physics of IR emission by thermal fluctuations and its relation to very small
particles.
KEYWORDS: aromatic compounds, cosmic dust, interstellar chemistry, interstellar matter, astronomical models, astronomical photometry, emission spectra, infrared radiation, interstellar extinction, spectral energy distribution
PERSOKEY:dust, ,
CODE: puget89