2023-07-06 20:31:06
A giant planet escaped being swallowed by its host star, to the astonishment of scientists around the world. Planet 8 Orsi Minoris lives in its current location, 520 light-years from Earth in the Milky Way. For reasons that are difficult to explain, under normal circumstances it should have been swallowed up by the host star – which is expanding exponentially – but 8 Ursaï Minoris b is still there. According to scitechdaily, the discovery was made through a collaboration of more than 40 academics around the world – including Mark Hohn of the University of Hawaii and Dr Dimitri Varas of the University of Warwick, which hosts groundbreaking research on white dwarf stars. Dr Veras said: “The distance between Earth and its star, the Sun, is 1 AU or 1 AU, 8 Orsay Minoris b orbiting its star at 0.5 AU. While this distance in itself is not unusual. But it’s weird. The point is that the star is dying, having already used up some of its fuel. When a star consumes fuel, it greatly expands in size, and this star has already grown to 0.7 astronomical units, which should have engulfed and destroyed a planet, so it is very unusual for a planet to still exist. “We came up with two possible explanations,” added Dr. Varas. The first argument, the most plausible, is that the star had a companion star (“binary star”) that slowed its growth and allowed for a planet. To survive, this double mate finally merged. With the original star, who now appears as just one star. The second theory, which has not been extensively investigated, again searches for a binary companion. This time, the merger of the two stars created the disk from which the planet formed – known as a second-generation planet. “Most stars are in binary systems, but we do not fully understand how planets can form around them, and it is possible that many planetary systems” aliens exist due to the double effect. comrades “. Professor Bill Chaplin from the University of Birmingham added: “This is a great example of the rigorous forensic studies we can now do thanks to the latest data, including using the natural oscillations of the host star (astronomy) observed by space telescopes. TESS to confirm beyond a reasonable doubt that this is a helium-burning red giant star.
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