The dust properties of a short period comet: comet P/Borrelly

Details The dust properties of a short period comet: comet P/Borrelly The dust properties of a short period comet: comet P/Borrelly

Oct 1998

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1998a%26a...338..364l&link_type=abstract

Astronomy and Astrophysics, v.338, p.364-370 (1998)

Astronomy and Astrophysics

Astrophysics

11

Ism: Dust, Comets: General, Comets: Individual: P/Borrelly

Scientific paper

We have calculated the thermal emission spectrum of the dust of comet P/Borrelly (1994l), a short-period comet (Jupiter family), from 3 microns to 14 microns as well as the 10 microns silicate feature in terms of the comet dust model as porous aggregates of interstellar grains. Compared to comet P/Halley dust, the dust grains of P/Borrelly appear to be relatively more processed (more carbonized), less fluffy, and richer in smaller particles. The fluffy aggregate model of silicate core-amorphous carbon mantle grains with a porosity P=0.85 can match the observational data. To generalize the dust properties of short-period comets, systematic observations of the thermal emission spectra and the silicate features for a large set of samples are needed.

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