2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/4725We have studied time variability in the flux from the flat spectrum synchrotron radiation of the Blandford & Konigl (1979) model for relativistic, conical jets. The resulting model has been applied to the flux variation of the flat spectrum of GRS 1915+105 observed by Fender & Pooley (2000). This comparison has highlighted a fundamental problem of the Blandford & Konigl (1979) model in that it requires unphysically large electron densities to explain the flux levels observed from the flat spectrum of GRS 1915+105.3 pages, 1 figure, to appear in the "Proceedings of the 4th Microquasar Workshop", 2002, eds. Durouchoux, Fuchs & Rodriguez, published by the Center for Space Physics: Kolkata. For original poster and animations see http://www.astro.soton.ac.uk/~rsc/ckc02.htmlAstrophysicstext