Other
Scientific paper
Dec 2003
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2003aas...203.9310l&link_type=abstract
American Astronomical Society Meeting 203, #93.10; Bulletin of the American Astronomical Society, Vol. 35, p.1358
Other
Scientific paper
We model the infrared (IR) emission from protoplanetary dust disks in terms of highly porous cometary-type dust made either of coagulated but otherwise unaltered protostellar interstellar grains, or grains that are highly-processed in protostellar/protoplanetary nebulae with silicate dust annealed and carbon dust oxidized. It is shown that the porous dust model with a vacuum volume fraction of ˜ 90% is successful in reproducing the near-IR to submillimeter spectral energy distributions and the mid-IR spectral features of amorphous and/or crystalline silicate dust and polycyclic aromatic hydrocarbon molecules, as well as the images of scattered starlight, mid-IR and/or submillimeter dust thermal emission from six archetypal dust disks: HR 4796A (Li & Lunine 2003, ApJ, 590, 368), HD 141569A (Li & Lunine 2003, ApJ, 594, 987), β Pictoris (Li & Greenberg 1998, A&A, 331, 291), ɛ Eridani (Li, Lunine, & Bendo, 2003, ApJL, in press), Fomalhaut and Vega (Li, Lunine, & Bendo, 2003, in preparation).
Bendo George J.
Li Aigen
Lunine Jonathan I.
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