Big News on Black Holes!
Back on August 17, during a Journey to the Centre of the Earth this blog predicted that "voids" between galaxies are far from empty. "The largest Black Holes were true monsters devouring everything in sight. They cleared great voids between sheets of matter. The 70% of mass ascribed to 'dark energy' may be hidden in those voids." That was predicted back in '004 by the Very Short Paper on GM=tc^3, in January 7, January 13 and February 27 posts.
This week at AAS: a team led by astronomer Anca Constantin announced that supermassive Black Holes are just as common in void galaxies as they are in walls. Her team studied more than 1,000 galaxies using the Sloan Digital Sky Survey. Perhaps you recognise the human shape in the Sloan diagram. Here the visible galaxies are black dots and the blue circles are voids. When our eyes are opened we find the red dots, supermassive Black Holes in the voids.
Being alone in their voids, these Black Holes accrete relatively little matter. With less food around, they eat less and give off less radiation. Like a Black Hole is supposed to be, they are dark and difficult to find. This led astronomers to assume that "voids" containing most of the Universe's volume are empty.
A fish in the Barrier Reef knows to avoid dark holes in the coral. Something hidden in those voids could eat her! It is hoped that scientists are more intelligent than fish. One pillar of the "dark energy" hypothesis is that 70% of the Universe mass appeared to be missing. If Black Holes are as common in voids as in walls that is at least 50% of mass. Here is the missing slice of the pie, and DE will soon be in big trouble.
For a comprehensive list of ISDC news links, check Out of the Cradle.