New dark matter map created with 'cosmic fossil' shows Einstein was right (again)

"A new map of the sky, made with observations from the Atacama Cosmology Telescope, showing dark matter. The orange regions show where there is more mass; magenta where there is less. Typical features are hundreds of millions of light-years across. (Image credit: ACT Collaboration)"

It will be interesting to read the papers when published for this map. The universe radius was only about 41 million light-years when the CMBR forms using cosmology calculators and H0 69 km/s/Mpc. The comoving radius today for CMBR redshift of about 1100 is about 46 billion light years radius as measured from Earth. It looks like some rigorous DM calculations stand behind this map for the early universe, likely before the CMBR forms.

The article states: "Einstein's 1915 theory of general relativity posits that objects with mass "warp" the fabric of space-time, giving rise to gravity and leading to specific predictions about how the large-scale structure of the universe formed and evolved to the state we observe today, 13.8 billion years after the Big Bang. These predictions comprise what is known as the "standard model of cosmology." "We have used the CMB, the oldest light in the universe, emitted soon after the Big Bang, to measure how dark matter  —  the invisible stuff that makes up the majority of the matter in the universe  —  is distributed on large scales," ACT team member Adam Hincks, an astrophysicist at the University of Toronto, said in a statement(opens in new tab)."

The standard model does not predict or explain what DM is let alone how much DM was created by BBT.

Latest posts