In one of the most detailed examinations of an exoplanet yet, Quebec-based scientists have calculated the chemical composition for a massive gas giant more than 634 light years away from us and found that it likely swallowed another neighbouring planet.
The ultra-hot giant exoplanet WASP-76 b, studied here, is an extremely hot world orbiting very close to its giant star.
The planet in question, called WASP-76 b, is a gas giant closely orbiting a massive star in the constellation of Pisces. According to the new study, published Wednesday in, it orbits its star so closely that the planet itself can get up to 2000 degrees Celsius. In this case, researchers found chemicals in WASP-76 b’s atmosphere that are known to be rock-forming elements, and are not usually found in this quantity in gas giants like Jupiter and Saturn. The abundance of these rock-forming elements led researchers to hypothesize that WASP-76 b, which orbits its star on its lonesome, may once have had a rockier neighbour which orbited with it.
This shift from gas to liquid can be very abrupt for some elements depending on their condensation temperature, researchers noted.
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