There Cheops mission of the European Space Agency discovered a Self -harmful planet which causes its own ruin: it is called Hip 67522 b and orbit So close to the mother star from induce it to produce violent explosions of energy that end up for damage it corroding his atmosphere. Described in an article in the magazine Nature, represents the first case of a planet that actively influences its starand not the opposite as it has always been thought.
It is from the discovery of the first exoplanet in the 90s that astronomers wonder if some of them may orbit close enough to disturb the magnetic field of their star and trigger bright. To answer this question, the researchers led by Ekaterina Ilin of the Dutch Institute of Radioastronomy had initially used the NASA Tess Space Telescope, in order to identify stars with shine potentially triggered by planets. When they observed the young star hip 67522 (which has alone 17 million years) with his two planets in orbit, immediately suspected they had found something interesting: Hip 67522 b was in fact the younger planet to orbit around his mother star in Less than ten days.
To know with certainty if i shine observed were Really triggered by the planetthe researchers decided to involve the Cheops space telescope, able to observe individual stars with extreme precision. Cheops managed to detect Other croaks coming from the star (15 in all), while the planet passed on it. And the fact that i shine see see during transit Planetarium, the authors say, suggests that they are caused by the planet itself.
Hip 67522 bdistant 400 light years from the earth, it is a giant giant which has dimensions similar to those of Jupiter and one comparable density to that of the cotton candywhich makes it one of the more exoplanets evanescent Never discovered. The radiation from the star they are eroding his thin atmosphere And they are inducing to losing mass much faster than expected. In the next 100 million yearscould go from being a planet of the size similar to Jupiter to a planet much smaller of the equal or lower size to those of Neptune.
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