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The new map of matter in the Universe is ready

2023-02-06T11:31:54.147Z


The Universe is less 'lumpy' than expected: this can be seen from the new and more accurate map of the matter present in the cosmos, created by crossing the data collected by the South Pole Telescope in Antarctica and by the Dark Energy Survey observational campaign in Chile (ANSA)


The Universe is less 'lumpy' than expected: this can be seen from the new and more accurate map of the matter present in the cosmos, created by crossing the data collected by the South Pole Telescope in Antarctica and by the Dark Energy Survey observation campaign in Chile. If confirmed, these results could open some cracks in the theoretical models that explain the evolution of the Universe, as indicated by the three articles published in the journal Physical Review D by an international team of over 150 researchers which also includes the University of Chicago and the Fermi National Accelerator laboratory.

The objective of this work is to understand how the matter generated 13 billion years ago by the Big Bang was distributed, because by tracing its path it is possible to reconstruct what happened and what forces came into play.

To achieve this precise mapping of matter by reducing the margins of error and uncertainty, the researchers thought of combining two different methods of observing the sky, crossing data from the Dark Energy Survey (which scanned the cosmos for six years from the top of a mountain in Chile) and those of the South Pole Telescope (which looks for the faint traces of radiation that are still traveling through the cosmos from the first moments after the Big Bang).

The results obtained are in line with the most accredited theories on the evolution of the Universe, but not entirely.

In fact, the observations indicate that the matter in the Universe would be less lumpy than predicted by the models.

The data is not yet solid enough from a statistical point of view to be considered unassailable, but if they were confirmed by further studies, they could indicate that there are still missing pieces to be fixed in the current model of the Universe.

Source: ansa

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