Earlier this year, Inkuisitr they reported on the discovery of a huge planet that floats only 20 light-years from Earth. Unlike most planets, this celestial body does not orbit the star, and wanders are found only through the cosmic darkness, detected by radio telescope.
Now, astronomers have announced that they have found two more unusual planets in our galaxy – the innocent voyeurs who fought on an eternal night, and themselves went into the emptiness.
According to Nev Scientist, two planets of free float were found by Polish astronomers at the University of Warsaw, who discovered planetary bodies in the Optical Gravitational Lensing Experiment (OGLE) survey at the Las Campanas Observatory in Chile.
"The formation planning theories envision the existence of free floating planets emitted from their motherboards, although they emit little or no light, they can be detected during the gravitational microsolution event," the team explained in a new study published last week on the server preprint arKsiv.
While most of the planetary discovery is done using a technique called the transit method – which searches for the stars in the brightness of the star to see the planet going through (transit) in front of it, Inkuisitr previously reported – the finding of thieves is much more complex.
This is because these heavenly celestial nomads are not bound to a star that they can transit and temporarily lose, causing astronomers to alert them to their presence. In their case, scientists rely on gravitational microlensing – an astronomical phenomenon that glows light on hidden planets when it passes through starry paths that come from far-reaching stars.
When the planet moves on the path of a distant starlight, gravitational pulls lead to the star's light and distortion, notes Futurizam. This effect can be observed by Earth-related observers and can lead to the detection of exoplanets that would otherwise remain unnoticed.
The method was used before finding the planets that were hidden outside our solar system – and even beyond the boundaries of the Milky Way, as reported Inkuisitr earlier this year.
The same technique helped OGLE to pick up one of the newly discovered planets of 16 April 2017. The discovery was later confirmed as a planetary body through subsequent observations from other observers, reports Motherboard.
OGLE-2017-BLG-0560 is marked, this object is huge and could be "Jupiter's Galactic disc or a brown dwarf in the projection" with up to 20 times the mass of Jupiter, describes in detail astronomers.
Interesting about this exciting discovery, the team broke through the OGLE archive and ran into another fake planet. Known as OGLE-2012-BLG-1323, this planet was originally discovered on August 21, 2012, but it simply fell through the cracks and has so far been overlooked.
Unlike the invention in 2017, this fake is much smaller – in fact, it is the smallest planet that has ever found it to wander through the universe – and has an estimated mass moving between Earth and Neptune.
So far only about a dozen planetary planets have been discovered, although astronomers suggest that the Milky Way could host more harmless planets and real stars.