Following the publication of well resolved mean pulse profiles1 for the four pulsating radio sources discovered by Hewish et al. 2,3, an attempt has been made to reproduce the profiles from simple models of pulsating white dwarfs. The calculated profiles are developed from the observation that the pulse length is comparable with the light time of the radius of a typical white dwarf, but include also the effects of a spatial and temporal distribution of emission over the surface.
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- 4.Kahn, F. D., and James, R. A., Meeting of the Royal Astro. Soc. (London, April 10, 1968).Google Scholar