SIMBAD references

We have calculated the thermal emission spectrum of the dust of comet P/Borrelly (1994l), a short-period comet (Jupiter family), from 3µm to 14µm as well as the 10µm 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.