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Planet revolving around three suns

Planet revolving around three suns

https://snanews.de/20211004/ein-planet-der-drei-sonnen-umkreist-3825450.html

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What should a 1,300-year-old ray of light tell us? The planet may no longer exist.

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2021

Valentin Raskatov

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Valentin Raskatov

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Space, astronomy, exoplanets, stars and knowledge

Astronomers were able to make an exciting discovery 1,300 light-years from Earth: a planet orbiting a system of three stars. This is indicated by the irregularity of the protoplanetary disk of stars.

The star system GW Orionis, which is 1,300 light-years away from us, is very different from the Solar System: instead of the central star, three stars form the center. But what makes the whole thing particularly exciting for astronomers: All three stars have a common protoplanetary disk — a formation of gas and dust around stars from which planets can originate. However, this disc was ripped apart by his superstars. In the case of GW Orionis, the gas cloud does not rotate in a plane, but has an inclined ring.

This crack and the hole it made in the disc They explain themselves University of Nevada researchers have an exciting reason: It might be a planet orbiting all three stars. If this assumption is confirmed, it will be the first planet of its kind, and at the same time, the search for exoplanets will expand significantly, because it is also possible to search for such inclined systems.

The planet itself has not yet been observed, but from the researchers’ point of view, it is the most plausible explanation for the gap. The other planetless option is a torque rupture for the three stars. However, researchers consider this unlikely. According to the researchers, calculations based on the observations of the astral system contradict this.

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Corresponding data comes from the “Atacama Large Millimeter/submillimeter Array” (ALMA) telescope in Chile. In the coming months, more data will be collected in order to establish direct evidence of the cause of the crack in the planetary disk – and hopefully confirm the planet.

The current study is in the Journal of the Monthly Notices of the Royal Astronomical Society Back. The idea of ​​a planet in the three star system already existed a year ago He expressed.