On March 2, 2019 Galaxy reported that astronomers at the University of California have concluded that there are likely to be tens of millions of enigmatic, dark objects, stellar remnants of black holes lurking in the Milky Way. Now, physicists are proposing that the long-sought Planet Nine, the elusive dark body in outer reach of our solar system, may actually be a primordial black hole, the theoretical remnants of the Big Bang, that could represent unusual orbits observed in the distant solar system.
This intriguing conjecture is presented by physicists Jakub Holtz with the Institute of Particle Physics Phenomenology at Durham University and James Unwin, a theoretical particle physicist at the University of Illinois at Chicago, who published this paper at the Arctic Laboratory in Chicago. Michael of Caltech Brown and Constantine Batigin, who predicted the existence of the ninth planet in outer solar system in 2016.
"At Earth's five masses, Planet Nine is likely to remind you of a typical extrasolar super-Earth," says Batigin, a professor of planetary science and Van Nuys Page Solar in Caltech. Supernovae are planets with a mass larger than Earth, but significantly less than that of the gas giant. "It is the missing link of the Solar System to form the planets. Planet Nine will be the closest thing we can find to a window into the properties of a typical planet in our galaxy. "
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"The solution with an ordinary planet and the solution with an exotic compact object like a primordial black hole are very similar," Unwin said. "However, the search strategy you need to identify the black hole is drastically different," he added. "We do not currently use all the tools in our toolbox to look for this job."
Primary black holes formed just fractions of a second after the Big Bang remain hypothetical objects for the moment, "following direct gravitational wave surges by VIRGO and LIGO detectors in 2016, says CIVN's Alviza Rakaneli. "Originally proposed by Stephen Hawking in 1971, they have emerged in recent years as possible candidates for the explanation of dark matter."
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"For normal black holes, you need to have at least solar mass because it is made of vesicles," said Holtz, who is a junior research fellow at the Institute of Particle Physiology at Durham University. “These primordial black holes can be much lighter; for example, the mass of the Earth or, in fact, even lighter. "
Holtz and Unwin, relates Becky Ferreira on Motherboard, began developing the paper after acknowledging the connection between Planet Nine Hypothesis and potential observations of PBS captured by the Project Optical Gravitational Lens Experiment (OGLE), an instrument that scans the sky for microlensing events that occur when distant objects – typically thousands of light-years above our own solar system – pass in front of even more distant stars. The gravitational fields of these small objects, which could be primordial black holes or free planets, bend light from background-derived sources, creating a signature for lenses that OGLE can detect.
Vacation events allow scientists to estimate that enigmatic objects are about one-half to 20 times larger than Earth. This is about the same mass scale that was expected for Planet Nine, a coincidence that Holtz and Unwin call "extraordinary" in the paper.
The discovery of evidence that Brown and Batigin proved that the sun is orbiting an unseen planet – about 10 times the size of Earth with an orbit that is about 20 times farther than the sun on average than Neptune – changes the physics. Planet Nine, based on their calculations, appears to be orbiting about 30 degrees from the orbital plane of other planets – in the process, affecting the orbit of a large population of objects in the Kuiper Belt, which is how Brown and Batigin came into being. that the planet existed there in the first place.
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“It continues to amaze us; every time we look closely, we find that Planet Nine explains something about the solar system that was a mystery long ago, ”says Batigin.
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Proponents of Planet Nine hypothesized that the expected location of this world, about 20 times the Neptune Sun on average, conveys the Motherboard, "a strange place to find a natural planet in the solar system. One explanation is that Planet Nine was once a free floating world, meaning a planet without a host host that was covered by the weight of the Sun. "
Holtz and Unwin calculated that either the enemy planet or the primordial black hole had the same probability of being captured by the Solar System being approximately the same. "It could equally be some sort of exotic object that was captured by the Solar System at some point," Unwin said.
Theoretically, a primordial black hole would produce "signals of destruction," writes Unwin and Holtz, which occur when dark matter particles on the black hole are destroyed by contact with their counterpart counterparts, generating light radiation that could potentially collect the instrument. the Fermi Gamma Space Telescope or the Chandra X-ray Observatory.
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“We are, in fact, expecting [annihilation signals] to happen at a very significant rate, so that these things have the potential to be the only sources of light in the sky, "Unwin said. To that end, Scholz and Unwin plan to analyze public data from the Fermi telescope to look for signals that may correspond to a local black hole.
"The first thing we can do is send something out there and do a lot of tests of general relativity," Unwin said. "The hypothetical orbit of Planet Nine is far away, but distance is not reachable."
"We will only get better information," Unwin said. "If you exhaust your conventional searches in visible light, this explanation of being a more exotic subject really starts to get traction."
Galaxy Daily via motherboard and arXiv