Astrophysics told what planet in the system of TRAPPIST-1 can be inhabited

About eight months ago it became known that scientists have discovered orbiting the star TRAPPIST-1 seven planets, some of which, according to many experts, could be a life. In the new study a team of scientists under the leadership of Christina Kislyakova from the University of Vienna came to the conclusion that four of these planets to show them any of the organisms. Moreover, the two of them, which is closest to the star, covered with oceans of magma, experts suggest.


photo: pixabay.com

TRAPPIST-1 is, in the cosmic sense, very close to the Ground — the distance to this system is less than 40 light-years. All seven discovered planets comparable in size to planets of the terrestrial group in the Solar system, and some of them are located in the so-called habitable zone of its star, i.e. at such a distance from it, on which water can exist in liquid form, not freezing and not evaporating. Many researchers doubt that life can arise close to a red dwarf which is a star TRAPPIST-1, however, a number of specialists this possibility fully admit.

As shown by a new study, the four closest to the star extrasolar planets experience strong influence of its powerful alternating magnetic field, which they, in all likelihood, there is too much volcanic activity, preventing the emergence of life. Two planets, according to scientists, can be covered with ocean lawyou

Thus life, like the earth, theoretically, could emerge only on planets TRAPPIST-the TRAPPIST and 1 f-1 g — the seventh planet, TRAPPIST-1 h are located from the star too far, and the water it is, in all probability, could only be in the form of ice.

The study was published in the journal Nature Astronomy.

We will remind, in February, the American space Agency NASA invited Internet users to come up with a “final” name for the planets in the system TRAPPIST-1. Quite popular was a proposal to name them after characters from the tales of the brothers Grimm “Snow white and the seven dwarfs”. In English the word dwarf may refer to as “dwarf” (including if we are talking about dwarf stars), and “gnome”. Since the star TRAPPIST-1 is a red dwarf, and the planets around it, seven discovered, many English-speaking Internet users felt that to name them after the dwarves would be symbolic.

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