Role of Modified Chaplygin Gas as a Dark Energy Model in Collapsing   Spherically Symmetric Cloud
  In this work, gravitational collapse of a spherical cloud, consists of both dark matter and dark energy in the form of modified Chaplygin gas is studied. It is found that dark energy alone in the form of modified Chaplygin gas forms black hole. Also when both components of the fluid are present then the collapse favors the formation of black hole in cases the dark energy dominates over dark matter. The conclusion is totally opposite to the usually known results. 
Ujjal Debnath, Subenoy Chakraborty