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Letters to Nature

Nature 266, 699-701 (21 April 1977) | doi:10.1038/266699a0; Received 6 December 1976; Accepted 21 February 1977

Radiative acceleration of gas above a luminous disk

VINCENT ICKE*

  1. Institute of Astronomy, Madingley Road, Cambridge, UK
  2. *Present address: California Institute of Technology 130–133, Pasadena, California 91125
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Spherically symmetric radiative acceleration has been considered1 as a mechanism for the ejection of matter from quasistellar objects. I present some calculations showing that in a simplified case, a strongly beamed outflow will result if the source of the driving radiation is not point-like but a disk.