An international team of researchers, including Australia, observed the collision of two black holes earlier this year and discovered something that supports physicist Stephen Hawking's theory.
The discovery was published in a recent issue of the American Physical Society's journal Physical Review Letters.
According to the Australian National University (ANU), this research provides clear evidence confirming British physicist Stephen Hawking's 1971 theory that black holes can only expand in size and never shrink.
The black hole merger, detected on January 14 this year, produced such a clear gravitational wave signal that scientists were able to precisely measure and compare the surface area of the two original black holes, each 30-40 times the mass of the Sun, and the large black hole formed after the collision.
ANU researcher Neil Lu, one of the study's lead authors, said the new black hole's size was larger than the sum of the original sizes of the two unmerged black holes, providing the clearest evidence yet to support Hawking's hypothesis.
Lead researcher Teagan Clarke of Monash University (Australia) also said that the research results are a new step towards understanding the quantum properties of black holes.
This discovery also marks a decade of progress for the global gravitational wave "hunting" organization, called the LVK Collaboration, since the first detection of gravitational waves in 2015./.
Source: https://www.vietnamplus.vn/phat-hien-buoc-ngoat-cung-co-cho-ly-thuyet-cua-nha-vat-ly-stephen-hawking-post1061341.vnp
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