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  1. The Poynting–Robertson effect, also known as Poynting–Robertson drag, named after John Henry Poynting and Howard P. Robertson, is a process by which solar radiation causes a dust grain orbiting a star to lose angular momentum relative to its orbit around the star.

  2. El efecto Poynting-Robertson es un proceso por el cual las partículas de polvo interplanetario se mueven lentamente en espiral hacia el Sol por causa de la radiación solar. Esto se debe a que el movimiento orbital de los granos de polvo es contrarrestado por la componente de la presión de radiación tangente a dicho movimiento.

  3. The Poynting effect may refer to two unrelated physical phenomena. Neither should be confused with the Poynting–Robertson effect. All of these effects are named after John Henry Poynting, an English physicist.

  4. 1 de abr. de 2014 · Introduction. The force associated with the action of electromagnetic radiation on a moving spherical body (dust particle) is called the Poynting–Robertson (P–R) effect. It is used in astrophysical modelling of orbital evolution of dust grains for many decades.

    • J. Klačka, J. Petržala, J. Petržala, P. Pástor, L. Kómar, L. Kómar
    • 2014
  5. Robertson also provided a fuller treatment of the problem consistent with relativity theory, and he established the existence of a drag of the same nature as that predicted by Poynting on classical grounds. This radiation-pressure-induced retardation is now known as the Poynting–Robertson effect or Poynting–Robertson drag.

  6. The Poynting-Robertson (P-R) effect results from the non-isotropic re-emission of solar energy stored by the meteoroid which is in motion relative to the sun. The radiation is emitted with higher momentum in the direction of motion, reducing the meteoroid’s velocity.