An international team of researchers has revealed that cosmic voids located in Earth’s skies could challenge even Einstein.
Map of dark matter created by the international Dark Energy Survey (DES) team
We can’t see elementary matterI don’t know much about them either, but we know they exist because of their powerful impact in space.
Dark matter makes up about 27% of the universe, their gravity is strong enough to pull the universe into a structure called the cosmological network (cosmic web). Now scientists have drawn the biggest map ever of this mysterious material and have since discovered that there seems to be something wrong with this mysterious material. Einstein’s theory of relativity.
They also map the locations of cosmic voids where the traditional laws of physics cannot be applied.
Astronomers can map dark matter by observing light from distant galaxies reaching Earth. If this light is bent, it means it is in the path of the light
the light has matter in front of it and deflects this beam. Using artificial intelligence algorithms to analyze images of 100 galaxies, members of the International Dark Energy Survey (DES) team – a collaborative effort to uncover the nature of dark energy is behind the expansion of the universe – have constructed a map that covers a quarter of the southern hemisphere sky (i.e. one-eighth of the entire sky as seen from Earth).
The map shows speckled spots of black, purple and pink, clustered inside a pale ring (overlaid on an image of the Milky Way). The brightest spots show the region with the highest density of dark matter, corresponding to supergroups of galaxies, while the black spots represent the cosmic vacuum (see image).
A new dark matter map covers a quarter of the sky in the southern hemisphere.
Dr Niall Jeffrey from the University of London and the École Normale Supérieure in Paris is one of the project leaders. He said, “He [tấm bản đồ này] shows us new parts of the universe that we have never seen before. We can actually see this cosmic web structure, including huge structures called cosmic voids, which are very low density places in the universe and have very few galaxies and matter beyond them.
dark matter map
Scientists are interested in these structures because they suspect that gravity acts on them in very different ways. By determining their shape and position [các cấu trúc này]the map above provides a starting point for further research.
According to the standard model of cosmology, our universe began with the big bang event, then expanded, then matter evolved according to general relativity – Einstein’s seminal theory of gravity. This gravitational force is at the origin of the condensate and the void of matter, two components of the cosmic web.
Although the DES team’s calculations show that the distribution of matter is broadly similar to that predicted by the Standard Model, it still does not match completely. “If you look at the universe, matter is not as rough as we think, but there are indications that the universe is flatter,” Dr. Niall Jeffrey revealed.
“Although it’s still relatively trivial, if these signs are correct, it means that Einstein’s theory of general relativity, one of the great pillars of physics, is wrong somewhere.”
One possibility is that some of the measurements used to calculate the appearance of the universe may not be quite accurate – this is what Professor Ofer Lahav, also at University College London (UCL) and who leads the collaboration between the UK and DES. , said. If not, then maybe this fundamental pattern [mô hình chuẩn] issue. “Some people even go so far as to say that Einstein may be wrong,” the professor said.
Lahav wasn’t ready to jump to conclusions that far: “What I’m saying is, ‘Look, don’t be so relaxed. There is something there that has the potential to indicate incompatibility. Work hard, try to figure it out using traditional methods, but keep your eyes peeled because it might usher in a physical revolution.”
See more astronomical calendar 2021 here: https://deepsky2000.net/lich-cac-su-kien-thien-van-nam-2021/
Hanoi Astronomical Society HAS
HAS translation team: Cong Thang
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