Jeans instability of interstellar gas clouds in the background of weakly   interacting massive particles
  Criterion of the Jeans instability of interstellar gas clouds which are gravitationally coupled with weakly interacting massive particles is revisited. It is established that presence of the dark matter always reduces the Jeans length, and in turn, Jeans mass of the interstellar gas clouds. Astrophysical implications of this effect are discussed. 
David Tsiklauri (University of Cape Town)