Black Holes and Dark Matter
In the two very interesting articles on Black Holes (Jan. & Feb.
2017) I miss any reference to their interaction with dark matter. Is
it captured by them in the same way as ordinary matter? Is dark
matter capable of condensing by its own gravity in the same ways as
stars are formed? If that is the case, is there any 'dark pressure'
that prevents those condensations ending up in black holes. Maybe
most of the dark matter today is in the form of black holes which
could be detected only by its effect on light coming from remote
sources. In fact, if dark matter is several times more abundant than
ordinary matter, most of the mass of the known black holes should
come from dark matter.
Eduardo Vila Echagüe