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Dark Matter Reveals ‘Bridges’ between Galaxies

Dragon
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Dark Matter Reveals ‘Bridges’ between Galaxies Empty Dark Matter Reveals ‘Bridges’ between Galaxies

Post by Dragon Mon May 31, 2021 3:30 am

A team of astrophysicists from the United States and Korea has created a new dark-matter distribution map using a neural network-based deep learning method and the data on positions and velocities of galaxies in the local Universe.

“The 80% of the matter in the Universe is in the form of dark matter that comprises the skeleton of the large-scale structure called the cosmic web,” said Dr. Donghui Jeong, an astrophysicist in the Department of Astronomy and Astrophysics and the Institute for Gravitation and the Cosmos at the Pennsylvania State University.

“As the cosmic web dictates the motion of all matter in galaxies and inter-galactic media through gravity, knowing the distribution of dark matter is essential for studying the large-scale structure.”


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Dark Matter Reveals ‘Bridges’ between Galaxies 334pu7m
Dragon
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Post by Dragon Mon May 31, 2021 3:31 am

Dark Matter Reveals ‘Bridges’ between Galaxies Image_9695-Local-Dark-Matter
Image credit: Hong et al., doi: 10.3847/1538-4357/abf040.

The 3D density map of the local dark matter: X-mark at the center denotes the Milky Way Galaxy; dots denote galaxies, and arrows denote estimated directions of motion derived from the gradient of the reconstructed gravitational potential.


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Dark Matter Reveals ‘Bridges’ between Galaxies 334pu7m
Dragon
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Post by Dragon Mon May 31, 2021 3:32 am



Hubble Makes Unexpected Dark Matter Discovery


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Dark Matter Reveals ‘Bridges’ between Galaxies 334pu7m
Dragon
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Dark Matter Reveals ‘Bridges’ between Galaxies Empty Re: Dark Matter Reveals ‘Bridges’ between Galaxies

Post by Dragon Mon May 31, 2021 3:33 am



New Dark Matter Map Shows The Bridges Between The Milky Way And Nearby Galaxies


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Dark Matter Reveals ‘Bridges’ between Galaxies 334pu7m

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