Physics
Scientific paper
Oct 1979
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1979icar...40....1b&link_type=abstract
Icarus, vol. 40, Oct. 1979, p. 1-48.
Physics
514
Interplanetary Dust, Particle Motion, Poynting-Robertson Effect, Radiation Pressure, Solar Radiation, Heuristic Methods, Pressure Effects, Relativity, Solar Rotation, Solar System, Solar Wind
Scientific paper
Solar radiation forces on small particles in the solar system are examined, and the resulting orbital evolution of interplanetary and circumplanetary dust is considered. An expression is derived for the effects of radiation pressure and Poynting-Robertson drag on small, spherical particles using the energy and momentum transformation laws of special relativity, and numerical examples are presented to illustrate that radiation pressure and Poynting-Robertson drag are only important for particles within a narrow size range. The orbital consequences of these radiation forces are considered both for heliocentric and planetocentric orbiting particles, and the coupling between particle sizes and dynamics is discussed. A qualitative derivation is presented for the differential Doppler effect, which is due to the differential Doppler shifting of radiation from approaching and receding solar hemispheres, and the Yarkovsky effect, which is important for rotating meter-to kilometer-sized particles, is briefly described.
Burns Joseph A.
Lamy Philippe L.
Soter Steven
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