Disk-Jet connection in outbursting Black Hole sources

We explored the spectro - temporal' behaviour of outbursting Black Hole sources in X-rays, at the time of jet ejections which are observed as radio flares. The energy dependent evolution of the properties of all the sources studied, shows that during the ejections the QPO frequencies disappear’ as well as the disk (thermal) emission increases, implying the soft nature of the spectrum. These results can be understood based on the TCAF model (Chakrabarti & Titarchuk 1995), in the presence of magnetic field.