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The asteroid Oumuamua is the first interstellar object discovered in the solar system, in acceleration. This acceleration can not be explained either by the gravity of the Sun or by the planets or the wind of the Sun. The researchers concluded that Oumiamua was accelerating its own "engines", that is, the flow of volatile substances due to the influence of the Sun, which is also the case in many comets . The results of the study were published in Nature magazine.
Oumuamua astronomers were first discovered on October 18, 2017. At first, it was thought that it is a comet. However, observations of the object showed that it does not close the hyperbolic trajectory at about 26 kilometers per second. This means that the object did not fly out of our planetary system and will soon escape it. Scientists did not find signs of the object, typical of comets – around him there was no cloud of gas (coma), so he "re-qualified" them asteroids. Subsequent observations by optical telescopes have shown that it was a very advanced, cigar-shaped, high-density pink object.
The group of astronomers from the Near-Earth Atmosphere Center led by Marco Micheli followed OUMAMUA to refine its trajectory. . Researchers used the Hubble Space Telescope, ESO's VLT television in Chile, as well as Canadian and Canadian CFHT telescope data in Hawaii. In total, the trajectory was measured more than 400 times.
"Our badysis has shown that the trajectories of the observed object can not be explained by the gravity of the objects of the Sun, Planets, Moon, Pluto and the 16 largest bands of asteroids." Scientific [19659005Theydetectedaverysmall"foreign"acceleration-about49×10-6m/s²whichwasinverselyproportionaltotheorbitalradiusThestudyauthorbadaminedthepossiblecausesofthisadditionalaccelerationincludingtheJarkovskyeffecttheeffectoftheinvisiblesatellitetheinteractionoftheOumedamamagneticfield(ifany)withthewindoftheSunHoweveritwasfinallyconcludedthatthemostlikelycauseisthereactivepowerofgasanddustthatescapefromthesurfaceapproachingtheobjectoftheSunTheeffectof"degbading"manifestsitselfincometsbutnosignofactivitycharacteristicofcometsn?ajIhavebeenshownbyOumuamua
Scientists have badumed that the dust covering the interstellular object is too coarse. The cloud of these large particles may be too pale to be seen, but its presence could explain the speed of Oumuamua
Participants of the Breakthrough Listening project of underground civilizations, to find out if the interstellar asteroid does not propagate any artificial signal, observations previously organized series. Nothing unusual could have been heard.
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