Wednesday , May 12 2021

6 Super Earth found in light years! It will become the second nearest exoplanet to the solar system TechNews



Let's approve! After half a century of debate, the research led by the Institute of Carnegie Science in the United States took 20 hours and finally it proved that there was a super ground, named Barnard Star b, only 6 years light away from & # 39; r Earth. 99%. Once other independent studies have been successful with other detection methods, Barnard Star b will become the second nearest exoplanet to the solar system.

The nearest system to the solar system is the three-star system of South Gate II (also known as Alpha Centauri, the English name Alpha Centauri), which is approximately 4.3 light years ago. away; The nearest exoplanet to Earth is the South Gate II system. In the Proxima Centauri b run by the Proxima Centauri, the orbital period is only 11.86 days.

Now, the astronomical team of the Institute of Carnegie Science has produced 20 years of research data, and we're surprising that we have 99% chance of discovering a new world: the world's Superard star only 6 light years away. (Barnard's Star b, or GJ 699 b)!

Barnard's star, as the name suggests, is Seren Barnard's, a small red star, about 14% of the death of the sun, located near the beta star of the constitution, only 6 light years of Earth. I am respected for its notable features. For example, here is the fastest star in every known star, sometimes known as Runaway Star, and is self-motivating. It's 1 times faster than Ursa Major's flying star.

▲ The imaginary drawing of the painter "Super Barnard" around the star of the parent. (Source: ESO)

During the 1960s and 1970s, Peter van de Kamp's astronomer once claimed that Seren Barnard should have a huge huge planet, mainly because he discovered the Barnard self-removal intervention. About 230 days, Barnard's star will disappear, suggesting that the force of gravity affected by its huge planet on the orbit could affect it. Some serpentists received their claims, but another group of opposition astronomers saw Peter van der Camp's claims, including George Gatewood and Heinrich Eichhorn.

So far, the Carnegie Institute of Science has a high level of confidence to support Peter van der Camp's perspective.

The team used the radial speed method to find the planets, using a total of seven instruments, such as an ESO 3.6-meter telescope, Excellent High Resolution of the Planed (HARPS), and UV Ultraviolet and Visual Elalle's Very Large UV Telescope ( UVES), CARMENES spectrum of the European Great Telescope.

The principle of the radial speed method is that the planet is in the process of overlapping the star. If its mass is large enough, the planetary gravity is enough to cause a small swing to the parent star; not only will the gravity force of the star affect the planet, but the gravity of the planet will also be reversed. Affecting stars.

The new orbital period discovered by Barnard is 233 days, which coincides with the Barnard star season. The team estimates that the mass of this large planet is at least 3.2 times the Earth, and the surface temperature is less than 150 ° C. The energy emitted by the Nader star is just 0.4% of the star, so Barnard's star b will be the second closest to the Earth, but the rate of practice may still be better than the nearest neighbor.

The test will also need to be confirmed by other independent research groups, such as the Lingri method, but the team at the Carnegie Institute of Science confirms that the planet is 99% true. The next generation of space and ground telescopes will be implemented after 2020, such as James Webb Space Telescope, and some even Barnard Star's immediate image could measure its spectrum, such as NASA's Big Red Sky Telescope Field (Broad Area ) Infrared Survey Telescope (WFIRST), Gaia ESA, etc.

The newspaper was published in Nature magazine.

Note: A star self-motion refers to the change in a star site that compares with the mass system of the solar system over time.

(Source: Source: Southern Europe Observatory)

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