Clues from microquasars to the origin of radio-loudness of quasars

Carlo Nipoti, Katherine M. Blundell, James Binney

We analysed the long-term variability of four microquasars (GRS 1915+105, Cyg X-1, Cyg X-3, and Sco X-1) in radio and X rays. The results of our analysis indicate the existence of…