The formation and origin of the IRAS zodiacal dust bands as a consequence of single collisions between asteroids

Details The formation and origin of the IRAS zodiacal dust bands as a consequence of single collisions between asteroids The formation and origin of the IRAS zodiacal dust bands as a consequence of single collisions between asteroids

Jan 1986

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1986icar...65...51s&link_type=abstract

Icarus (ISSN 0019-1035), vol. 65, Jan. 1986, p. 51-69.

Astronomy and Astrophysics

Astronomy

74

Asteroids, Astronomical Models, Space Debris, Zodiacal Dust, Collisions, Infrared Astronomy Satellite, Orbital Elements, Particle Size Distribution, Poynting-Robertson Effect, Solar System, Asteroids, Collisions, Formation, Origin, Cosmic Dust, Iras Satellite, Infrared Astronomy Satellite, Satellite Observations, Debris, Particles, Dust, Precession, Distribution, Size, Time Scale, Models, Emissions, Thermal Properties, Motion

Scientific paper

Debris fom the single collisions between asteroids that are presently suggested as an explanation for zodiacal dust bands discovered by IRAS is distributed about the plane of the ecliptic, as particles undergo differential precession of their ascending nodes because of their semimajor axes' dispersion. On time scales of 100,000 to 1,000,000 yr, two bands are formed on each side of the ecliptic for each collision; the IRAS band pairs are probably due to collisions of aproximately 15-km diameter asteroids which occurred within the last several million yr. The model presented suggests that asteroid collisions suffice as a basis for most of the observed zodiacal emission.

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