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A Simple Derivation of the Radiation Forces Felt by Scattering Particles

Published online by Cambridge University Press:  14 August 2015

Joseph A. Burns  and
Steven Soter
Joseph A. Burns
Affiliation:
Cornell University, Ithaca, NY 14853 U.S.A.
Steven Soter
Affiliation:
Cornell University, Ithaca, NY 14853 U.S.A.

Abstract

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The radiation pressure (RP) felt by a perfectly absorbing particle is due to the momentum withdrawn each second from the beam. The Poynting-Robertson (PR) drag is produced since the particle continually absorbs mass in the form of radiation, which, upon re-emission, has the same mean momentum density as the particle itself. We find that, relative to the force felt by a perfectly absorbing particle, the RP+PR forces felt by a scattering particle must be multiplied by Qpr, the radiation pressure coefficient, which can be evaluated from Mie theory.

Type
III: The Interplanetary Dust Complex 1. Sources, Evolution, and Dynamics
Information
Symposium - International Astronomical Union , Volume 90: Solid Particles in the Solar System , 1980 , pp. 281 - 284
Copyright
Copyright © Reidel 1980 

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