Are 1992QB1 and 1993FW remnant planetesimals?

Details Are 1992QB1 and 1993FW remnant planetesimals? Are 1992QB1 and 1993FW remnant planetesimals?

Feb 1994

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1994pasj...46l...5y&link_type=abstract

PASJ: Publications of the Astronomical Society of Japan (ISSN 0004-6264), vol. 46, no. 1, p. L5-L9

Astronomy and Astrophysics

Astronomy

5

Astronomical Models, Comet Nuclei, Comets, Infrared Spectra, Protoplanets, Size Determination, Solar System Evolution, Infrared Astronomy, Oort Cloud, Visual Observation

Scientific paper

We have explored the possibility that 1992QB1 and 1993FW are remnant planetesimals that have been preserved from the time of formation of the solar system, by comparing the results of observations with the predictions of a planetesimal model of cometary nuclei. The orbital elements and the size deduced from the planetesimal model at the heliocentric distances of 1992QB1 and 1993FW are consistent with those observed values. It is pointed out that the population of the planetesimal cloud has a maximum at heliocentric distances of around 100 to 200 AU. For future observations, we predict the population of faint objects outside the planetary region as a function of the visual magnitude in a given field of view and the infrared thermal emission spectrum.

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