A young star eats a planet. Free Technical Library News

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A young star is eating the planet

20.07.2018

Researchers from the Massachusetts Institute of Technology using the Chandra X-ray observatory managed to record for the first time how a young star swallows a planet.

For the past 100 years, astronomers from all over the world have been observing the unusual behavior of stars in the constellation Taurus-Auriga, which is located about 450 light-years from Earth. So, the light of some celestial bodies in this area fades once every 10 years, after which the star begins to shine again.

In the constellation Taurus-Auriga are "stellar nurseries", which are clusters of thousands of "born stars". It is worth noting that such celestial bodies are a mixture of astronomical collapse of gas and dust inside the molecular clouds surrounding the constellation. Physicists observed just one of these stars called RW Aur A.

The study revealed that there is more iron around RW Aur A than on the Moon. It is noteworthy that the presence of this material is uncharacteristic of young stars. In this regard, scientists concluded that the last eclipse of the star was associated with a collision with a baby planet, in the core of which there is a large amount of iron.

The eclipse of RW Aur A is also explained by a collision with another celestial body - then, as a result of the break of the baby planet, its remains became a dense cloud of gas and dust. Once such planetary debris hit a star, it created a thick veil that temporarily obscured the star's light.

"Computer simulations have long predicted that planets could merge with the structure of a young star, but we have never observed anything like this before. If our interpretation of the data is correct, this will be the first time we have directly observed a young star devouring a planet or planets." - the message says.

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