Tuesday , May 17 2022

"Cold, dark world." Astronomers have discovered another super world



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The star of Barnard is one of the closest stars to the Sun. He is separated from him by just six light years. The Closer is only a three-ply Alfa Centauri system, while Barnard's Star is the closest star to the Solar System.

Super World Found

An international team of astronomers led by Ignasi Ribas and Guillem Anglada Escudé successfully completed a search for a planet orbiting Star Barnard.

The discovered blue body is almost certainly the super world – a rocky extrasolar planet with a mass of at least 3.2 times larger than our world. Your star travels in less than 233 days. Assignment of Star Barnard b.

– After a very careful analysis, we'll be 99 percent sure the planet settles there – said Ignasi Ribas. As reported, data of seven instruments, including measurements over 20 years, were used, a total of 771 measurements were performed.

To be sure, 100% astronomers still need to exclude other possible factors that could affect the results of the observation.

Frosty Super-World

Finally, if it is confirmed that there is a planet, according to the measurements, it is closer to the Earth than the Sun (about 0.4 Earth-Sun distance). Despite this, very cold conditions prevail over him. It is close to a snow line which is an area where volatile substances such as water are solid (ice).

"This cold and dark world can have a minus 170 degrees Celsius degree, which includes life as far as we know it." – Scientists write about research. The reason for the existence of such conditions is the characteristics of the main star, a small red dwarf. The planet takes only 2 per cent of the energy from the Earth.

The planets around the Star of Barnard have been searched before, but so far they have not succeeded. Thanks to the measurements of highly sensitive instruments operating around the world, current success was possible.

Contribution of Polish astronomer

The results of the research on the planet of Bernard Star and its planet are presented in the new issue of “Nature”. One of the authors of the publication was a doctoral astronomer from Warsaw University – dr. Marcin Kiraga.

Participation in the study was made in the analysis of photometric data (as in the case of the discovery of the Proxima b planet). These data mainly came from the ASAS assessment conducted by the Warsaw Astronomical Observatory University.

Among the scientists involved in the project are also a Polish German astronomer from Heidelberg University. There's Adrian Kaminski. As part of the consortium, CARMENES was responsible for data analysis.

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