Original title: British Media: Scientists have detected the greatest prominent black hole, nearly nine billion light years away from the ground
British media said that the laser interferometer gravitational wave observatory has discovered four pairs of black holes, including the largest black hole to date.
According to the British "New Scientist" Weekly website reported on December 3, It. Laser Interferometer Gravitational Wave Observation Station (Ligo) is monitor gravitational waves. Ligo announced the discovery of four-time shackles that were created in the rotation and impact of a pair of black holes around each other.
The Ligo team announced that in the past three years, they have detected a gravitational wave of collisions between a pair of neutron stars, four pairs of double black holes, and a pair of black holes that we do not know well. A new paper, recently reported, found that LIGO has discovered four other activities. The paper also confirms that the earlier detected uncertainty is indeed a gravitational wave signal. This means that Ligo has so far monitored 11 different activities: 10 of a pair of black holes and one of a pair of neutron stars.
The four newly discovered activities are screened out of Ligo's previous observations. Liga team member Nelson Christensen said in Carlton College in Minnesota that researchers have observed signs of the activities in 2017, but they are not as "clear" as the activities have already been documented, so they need to be more careful. Analysis.
Between the four black hole mergers announced this time, one occurred between a black hole with a mass equivalent to 34 sun and a black hole with a load equivalent to 50 sun, this is the largest black hole LIGO ever noticed. There is also the blackest black hole, nearly nine billion light years away from the ground.
Christensen said that the size of the black hole is quite strange, because a star collapse is unlikely to form such a big black hole. He said: This is the size of the black hole that you expect to evolve into the evolution of the planet, so that the big black hole is the result of the merger of other small black holes.
Ligo will lead the next phase of monitoring in 2019, and the resulting huge amount of data can bring more results. Christensen said: "We should be able to monitor 50 activities in the next phase, and maybe even more."
In October this year, the magazine reported that it was a mistake that Ligo's observations could not prove correctly because they detected gravitational waves, as the techniques used to analyze the detector noise could be confusing. The new paper will help to resolve this controversy. (Compile / Hu Xue)