Scientists have found the star for eating a planet

Experts from the U.S., Spain and Poland were able to capture the unique process of absorption of the star of one of its planets, reports BBC News.

See a unique event possible by means of the telescope Hobby Eberly, set in the McDonald Observatory, Texas. His object was one of the distant stars, codenamed BD +48 740. It belongs to a class of red giants — aging stars, which grow to enormous size and throw a huge stream of energy.

"Of course, the destruction of the planet of its star can be detected very rarely, — said one of the study's authors, Alexander Volchshan (Alexander Wolszczan) of the University of Pennsylvania. — However, most of the stars sooner or later becomes a red giant, and in a few billion years, the same fate may await planets in the solar system. "

Get information about the planet's absorption spectrometric analysis of possible star BD +48 740. In its course, the scientists analyzed the specifics of the reflection of light from the celestial body on the basis of which to make assumptions about its chemical composition. It turned out that the unknown star contains a large amount of lithium and rare earth materials.

What is surprising is that the celestial bodies Li quickly destroyed, and to meet him in an aging star, actively give their energy, it was highly unusual. Then scientists have suggested that such a high level of lithium due to the fact that the star is absorbed nearby planets. It was in the course of its processing inside the star has been allocated a large amount of this material.

"Fixing the absorption star of the planet — is a great achievement, since this process usually takes place very quickly, — said one of the study participants, Eva Villaver (Eva Villaver) from the Autonomous University of Madrid (Universidad Autonoma de Madrid). — But now we see that it can be discovered even when absorption has already occurred — just scan the chemical composition of the stars. "

Source:golosscience.com

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