Geminid fireballs and the peculiar asteroid 3200 Phaethon

Details Geminid fireballs and the peculiar asteroid 3200 Phaethon Geminid fireballs and the peculiar asteroid 3200 Phaethon

Nov 1988

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1988icar...76..279h&link_type=abstract

Icarus (ISSN 0019-1035), vol. 76, Nov. 1988, p. 279-294.

Astronomy and Astrophysics

Astronomy

28

Asteroids, Astronomical Photometry, Geminid Meteoroids, Infrared Astronomy Satellite, Light Curve, Luminosity, Particle Density (Concentration), Velocity Measurement

Scientific paper

An attempt is made to infer the properties of the peculiar asteroid 3200 Phaethon, which is the parent body of twelve long-duration Geminid fireballs observed over western Canada. The luminosity of each of these fireballs is used to obtain a photometric mass that is independent of velocity. It is shown that, for realistic values of an assumed luminous efficiency, the photometric masses agree for particle densities between 0.7 and 1.3 g/cu cm. Classification parameters are noted to suggest that, while the Geminids are not as 'tough' as meteorites, they are more cohesive than many fireballs; they have too low a density to justify association with meteorites or normal asteroids.

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