I have been reading up on some theoretical idea's for supernovai etc..etc It is interesting that there may be some correllation between Blackholes and AGN, and consequently Stars going Supernova. Does anyone know if what I am going to state has been looked into? It seems probable that all Galaxies have a central Blackhole at their core, and around certain cores Stars are dynamically influenced by the Gravitational effects of their proximity. Tidal effects would be distributed out throughout the host Galaxy, so there is a possibility that as BHs consume Stars, and increase their Mass, their influence upon Stars that are further out along Galactic Arms etc..etc, may be influenced by the change in the distributed Galactic Mass. Surely if Blackholes consume Stars, then Stars that are not being consumed, must have some effect imposed upon them , such as Tidal Effects,(Gravitational Pulls?) which could theoretically 'trigger' some Stars to go supernova? A Stars condition is based on its own Pressure due to the number of Photon emmissions and with the Elemental makeup within the Stars core, therefore it is may be probable that a Star going Supernova(collapse), may also be conditional of its proximity along the Galactic arms, due to the influence of the Galactic Core BHs 'appetite' in consuming Stars that stray to Close? Stars distributed along the Galactic Arms have some protection due to the Galactic plane, but there amy be 'weak-spots' along the arm, and with the 'Time' Blackhole core devours nearby Stars. For instance I would think that if a Galactic Blackhole is consuming a vast number of Stars, removing, or Transfering of some of the Galactic Mass must be occuring, and this could influence the rate at which other Stars convert their energy source? The classification of Blackhole Mass and Stella Mass being the factors when identifying Galactic Blackholes clearly show that Galactic Blackholes are central to birth and death of all of its Stars in its Gravitational influence.