Scientists have discovered a giant planet orbiting a giant pair of extremely hot stars, an atmosphere previously thought to be too inhospitable for a planet to form.
A research article published on Wednesday in science journal nature Said that the discovery of a planet named “B Centauri (ab) b” or “B Centauri b” debunks the widely held belief among astronomers.
“Until now, no planet has been observed around a star three times as massive as the Sun,” wrote the European Southern Observatory, which photographed the planet with its Very Large Telescope (VLT) in the Chilean desert.
Stockholm University Astronomy Prof. “This planet completely changes the picture about massive stars as hosts,” said study leader Marcus Jansson.
The extremely massive “B-type” double star, located at the center of the Solar System in the constellation Centaurus, is extremely massive and hot. It emits large amounts of high-energy ultraviolet and X-ray radiation, which “have a strong effect on the surrounding gas that should work against planet formation,” ESO said.
“B-type stars are generally considered to have fairly destructive and dangerous environments, so it was believed that it must be extremely difficult to form large planets around them,” Jensen said in the press release.
“It’s a harsh environment, dominated by extreme radiation, where everything is massive: the stars are bigger, the planets are bigger, the distances are bigger.”
Gayatri Vishwanath, PhD student at Stockholm University
The planet’s discovery was described in July and was formally published in Nature on Wednesday, with the researchers saying that “the results suggest that the planet exists in much more massive stellar systems than would be expected from extrapolation of previous results.” can reside.”
Newly discovered B centauri (AB)b is an exoplanet, is a planet located outside our own solar system, and is “10 times larger than Jupiter, making it one of the most massive planets ever found,” ESO wrote.
Co-author Gayatri Viswanath, a PhD student at Stockholm University, said in the press release that it is “an alien world in an environment that is completely different from what we experience here on Earth and in our solar system.”
“It’s a harsh environment, dominated by extreme radiation, where everything is massive: the stars are big, the planets are big, the distances are big,” wrote Viswanath.
Its orbit is “one of the widest ever discovered,” more than 100 times the distance between Jupiter and the Sun, ESO wrote. “Such a great distance from the central pair of stars could be the key to the planet’s existence.”
The ESO photograph published this month is the first photograph of the planet since it has been identified, B Centauri (AB) b was imaged but not identified in previous telescope captures, the researchers said.
In an email to Granthshala News, Jenson said the discovery prompted him and his colleagues to expand on a survey called BEST, which is examining 85 similar stars.
“We will try to gain more telescope time for an extended survey, and we are scanning all telescope archives after any high-mass stars that may have been observed in the past,” Jensen wrote.
“I think the search for high-mass stars in the region will increase in intensity, both for the purpose of detecting planets, but also to characterize them, to find out what they are made of and to learn more detail.” Try how they would have formed.”
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