Physics
Scientific paper
May 1997
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1997adspr..19..981g&link_type=abstract
Advances in Space Research, Volume 19, Issue 7, p. 981-990.
Physics
10
Scientific paper
The principal observational properties of silicate core-organic refractory mantle interstellar dust grains in the infrared at 3.4 μm and at 10 μm and 20 μm are discussed in terms of the cyclic evolution of particles forming in stellar atmospheres and undergoing subsequent accretion, photoprocessing and destruction (erosion). Laboratory plus space emulation of the photoprocessing of laboratory analog ices and refractories are discussed. The aggregated interstellar dust model of comets is summarized. The same properties required to explain the temperature and infrared properties of comet coma dust are shown to be needed to account for the infrared silicate and continuum emission of the beta Pictoris disk as produced by a cloud of comets orbiting the star.
Greenberg Mayo J.
Li Aigen
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