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Which situation might cause such a merger? Researchers are not sure, because this is a new open field in the universe. But there are some possibilities.
First, astronomers can imagine a collision of a medium-mass black hole with a mass of about 80 or 100 solar masses with a smaller star-sized black hole with a mass of about 5 solar masses.
Another possibility is that various stellar black holes in the garden collide with the relatively weak black holes left by the Big Bang.A “primitive” black hole.These may only account for 1% of the mass of the sun, and most LIGO detects a black hole So far, it weighs more than 10 solar masses.
Earlier this year, researchers at the Max Planck Institute for Gravitational Physics used Field and Khanna’s alternative models to view signs of gravitational waves elicited from LIGO data. Mergers involving primitive black holes. Although they did not find anything, they were able to more precisely limit the possible abundance of this hypothetical black hole category.
In addition, LisaThe planned space-based gravity wave observatory may one day be able to witness the merger between ordinary black holes and the supermassive variants at the center of galaxies, some of which merge with one billion or more suns. The future of LISA is uncertain; its earliest launch date is 2035, and its funding status is still unclear. However, if this is the case, we may see the combined quality ratio of more than 1 million when the merger starts.
Breaking point
Some industry insiders, including Hughes, described the success of the new model as “the unreasonable validity of the point particle approximation”, emphasizing that the validity of the model at low quality ratios is indeed a mystery. Why should researchers be able to ignore the key details of smaller black holes and still get the correct answer?
Khanna said: “This tells us something about basic physics, although this is still a curiosity. “We don’t have to worry about two objects surrounded by the event horizon, they may twist and each other in strange ways. Interactive. “But no one knows why.
Without an answer, Field and Khanna tried to extend their model to more realistic situations. In a paper scheduled to be published on the preprint server arxiv.org early this summer, the researchers gave some rotations of larger black holes, which is a reality in astrophysics. Similarly, their model is very consistent with the results of numerical relativity simulations with mass relativity as low as 3.
Their next plan is to consider black holes that are close to each other in elliptical orbits rather than in perfect circular orbits. They also plan to work with Hughes to introduce the concept of “misaligned orbits,” in which black holes are skewed relative to each other and rotate around different geometric planes.
Finally, they hope to learn from their model by trying to break the model. Can it work with a quality ratio of 2 or lower? Field and Cana wanted to find out. “When people see an approximate method fail, it will have confidence in an approximate method,” he said. Richard Price, A physicist at the Massachusetts Institute of Technology. “When you approximate and get surprisingly good results, you wonder if you unknowingly used the results you shouldn’t access to cheat.” He added that if Field and Khanna push their models To the breaking point, then “then you will really know that what you are doing is not cheating-the approximation you have is better than you expected.”
ability Reprinted with permission below Quanta Magazine, Edit independent publications Simmons Foundation Its mission is to enhance the public’s understanding of science by covering research developments and trends in the fields of mathematics, physics and life sciences.
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