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Fig. 3


Scattering diagram of light with λ = 580 nm impinging on the dust particle with R = 0.168 μm. This particle gives the maximal dimensionless efficiency factor for the radiation pressure averaged over the stellar spectrum. For xM = 2πR/λ< 1.38 scattering is predominantly back to the source. Considered situation corresponds to xM ≈ 1.820 and the scattering diagram has the usual preponderance of forward radiation over back radiation (van de Hulst 1981).

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