Are Black Holes the Source of Dark Energy? universetoday storybywill
, and Dr. Dave Clements of the Department of Physics at Imperial College were co-authors on the studies.
“If the theory holds, then this will revolutionize the field of cosmology, because at last we’ve got a solution for the origin of dark energy that’s been perplexing cosmologists and theoretical physicists for more than 20 years,” said Pearson in a RAL Space . “This is a really surprising result. We started off looking at how black holes grow over time, and may have found the answer to one of the biggest problems in cosmology,” added Clements.The team reached this conclusion by examining the evolutionary history of SMBHs at the center of giant elliptical galaxies. This refers to a type of “early galaxy” that formed early in the Universe and has since ceased forming stars .
These dormant galaxies have little material left for their SMBHs to accrete, meaning that further growth cannot be explained by the two mechanisms mentioned above. The team then compared observations of these elliptical galaxies – which still appear young – to local galaxies dated to ca. 6.6 billion years ago, which have since become dormant.
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