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New astronomy research from the University of Central Lancashire (UCLan) suggests that giant planets could form around small stars much faster than previously thought.Dr. Anthony Mercer and Dr. Dimitris Stamatellos' new planet formation research, published in Astronomy and Astrophysics journal, challenges the understanding of planet formation.The research found that small stars in our galaxy like Red dwarfs, which are 10-15 per cent the size of our sun, are found to host giant planets up to 10 times bigger than Jupiter, the largest planet in our solar system.The mystery around the formation mechsm of these big planets remains unsolved.Giant planets around stars like our Sun are thought to have formed by the gradual build-up of dust particles to progressively bigger bodies.However, red dwarfs are tiny when compared to the Sun, and they do not seem to have enough material around them to form such big planets.The research team used the UK Distributed Research Advanced Computing (DiRAC) supercomputing facility to simulate the evolution of protoplanetary discs around red dwarf stars.Protoplanetary discs are rotating structures of dense gas and dust found around all newly born stars.If these young discs are big enough they can fragment, i.e., break up into pieces, forming gas giant planets, researchers suggested.This theory predicts that the formation of giant planets happens within a few thousand years, a timescale which is extremely fast in astrophysical terms.Dr. Mercer, who led the research, said: "The fact that planets may be able to form on such a short timescale around tiny stars is incredibly exciting. Our work shows that planet formation is particularly robust: other worlds can form even around small stars in a variety of ways, and therefore planets may be more diverse than we previously thought."The researchers also found these planets are extremely hot when they form, with temperatures at their cores reaching thousands of degrees. Such hot planets would be relatively easy to observe when they are still young. They do not have an internal energy source, so they become fainter with time, and the window of opportunity to directly observe them is very small.Nevertheless, they can still be indirectly observed by their effect on their host star. Many planets like these have been discovered so far around small stars.Co-author of the research Dr. Stamatellos, an astrophysicist in UCLan's Jeremiah Horrocks Institute, added: "This was the first time that we were able not only to see planets forming in computer simulations but also to determine their initial properties with great detail. It was fascinating to find that these planets are of the 'fast and furious' kind -- they form quickly and they are unexpectedly hot."( With inputs from ANI )

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Technology :Giant planets could form around small stars much faster than previously thought

New astronomy research from the University of Central Lancashire (UCLan) suggests that giant planets could form around small stars much faster than previously thought. ...