Three future planetary systems around the binary star!

Des chercheurs de l’université de Manchester (Royaume-Uni) montrent que trois disques protoplanétaires coexistent autour du système binaire SVS 13. Ils pourraient former trois systèmes planétaires distincts. © Skorzewiak, Adobe Stock

When astronomers talk about a double star, they are actually talking about two stars orbiting each other. Because they are engaged in a very tight dance around two stars, they have observed three different protoplanetary discs, which lead to three distinct planetary systems!

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[EN VIDÉO] Extraterrestrials
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The Astronomers Call it SVS 13. it is a Binary system Rising stars. A Double star This is only about 980 Light years Of our earth, in Cloud Perseus molecule. The two stars that make up it – with a total mass almost equal to that of our Sun – are very close to each other. Almost 90 times The distance between our sun and the earth – Twice as far as the Sun-Pluto.

But what makes it really special Eyes From Researchers at the University of Manchester (United Kingdom), they saw around him, not one, not two, but actually three discs. Gas And dust. From Protoplanetary discs It can give birth to three Planetary systems Unique.

By studying the data collected using thirty years of data Very large queue (VLA), a Radio telescope Located in New Mexico (USA), and more recently, the Atacama Large Millimeter / Submillimeter Antenna Array (Alma, Chile), astronomers say that every star in SVS 13 ‘is surrounded by gas and dust – about 30 times the distance between the Earth and the Sun. And an additional protoplanetary disk, larger than the others – up to 500 times the Earth-Sun distance – formed around two stars. Disk with spiral system providing supplies for the other two Protoplanetary discs.

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Are planetary systems ready to welcome life?

This study is the most comprehensive study ever conducted on the SVS 13 system. Movements Of two stars formed over a period of thirty years. What should go back to them OrbitsBut to the geometry and orientation of the system, the The mass of the stars To the mass and temperature of the exposed or their protoplanetary disks.

Astronomers even give a mixture of gases and dust. They identified nearly thirty people Molecules Different. Of these, thirteen are complex organic molecules. Pioneers of life. “ That is, when the planets begin to form around these two suns, the building blocks of life will be there.Ana Karla Díaz-Rodríguez, researcher excites UK Alma Regional CenterIn one University of Manchester Press Release.

Most of the nearly 5,000 Extraterrestrials The discovery of single stars orbiting has been confirmed today. And astronomers believe that binary – or many – systems create a slightly more complex gravitational environment to initiate the planetary formation process. But this work provides important new information that tests the formation models of these systems. Test them, understand the conditions of binary star systems and complete them – we will remember.The universe – Planets can be born.

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