Is "Planet Nine" a black hole the size of a grapefruit
"Space-time heritage survey" telescope may verify authenticity
Science and Technology Daily, Beijing, July 12 (Reporter Liu Xia) According to the physicist organization network recently, American scientists proposed a new plan, hoping to use the future "Space and Time Heritage Investigation" (LSST) telescope to find the so-called "Planet Nine" And confirm or falsify once and for all whether it is an original black hole.
LSST takes the famous "Planet Nine" as its primary detection target. "Planet Nine" refers to the ninth largest planet in the solar system. Most theories believe that "Planet Nine" is an undiscovered planet, but it may also be a planet-mass black hole.
Research conducted by the founders of Harvard's "Black Hole Project," Ivy Lloyd, and graduate student Emile Hilage, and others showed that LSST can discover black holes by observing accretionary flares caused by the impact of small Orte cloud objects.
"In the vicinity of the black hole, small objects close to the black hole will melt due to the gas of the interstellar medium being heated by the black hole accretion. Once melted, the small object will be disturbed and destroyed by the tidal force generated by the black hole, and then be accreted on the black hole. Because black holes are dark in nature, the radiation emitted by matter on the way to the entrance of the black hole is the only way to illuminate this dark environment." Hiraj said, "Our new method can provide information for the original black hole in the future. This method can discover or exclude planetary mass black holes trapped on the edge of the Oort cloud, and may also place new restrictions on the proportion of dark matter contained in the original black holes."
LSST is expected to have the sensitivity required to detect accretionary flares, and current technology cannot do this without guidance. Lloyd said: "LSST has a wide field of view, can cover the entire sky multiple times, and look for instantaneous flares. Other telescopes are good at aiming at known targets, but we are not sure where to look for'Planet Nine', only know that it may be in A wide area. LSST can detect the sky twice a week. In addition, it has unparalleled detection capabilities, allowing people to detect flares caused by relatively small celestial impacts."
Lloyd believes: "The existence of'Planet Nine' can provide a convincing explanation for the clustering phenomenon of some celestial clusters that we have observed outside of Neptune's orbit. If it is confirmed by direct electromagnetic search, it will be the first time in 200 years. New planets are discovered in the solar system. If no light from'Planet Nine' is detected, the black hole model becomes more intriguing. Existing theories believe that'Planet Nine' may be a grapefruit-sized black hole with a mass of Earth 5-10 times."
Researchers say that if the solar system does have "Planet Nine", just as Columbus discovered the New World, it will cause people to think further and open up new research areas. For example, does it shape the history of the solar system? Are there more similar primitive black holes in the solar system?
Editor-in-Chief
A few years ago, scientists proposed "Planet Nine" to explain a cluster of abnormally high elliptical orbits across Neptune objects. But does "Planet Nine" exist? Is it a planet or a black hole? So far there is no direct basis for astronomical observations. This also makes "Planet Nine" a fascinating topic in the field of astronomy. If the newly proposed exploration program can really find clues about "Planet Nine", whether it exists or not, it will fill the gap in human knowledge.