Tuesday , August 16 2022

Cold and Dark Explat, a neighbor of the Solar System



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The discovery was one of the largest international observation campaigns in history. The telescopes of the world have taken about 800 measurements in 20 years. Ignatious Ribas of the Institute of Space Studies of Catalonia (IEEE) explained. -CSIC).

"All this data has allowed us to characterize the planetary system, which is orbiting the Barnard." We do not think that the second system closer to us, we do not think we have more of the planets, "says the researcher.

But how is this system The newly discovered planet depends on the star Barnard's star, 7 to 10 billion years old, and the red dwarf "twice the star than the sun", is relatively idle and fastest in the night sky.

Bernard B, 234 days after his hostess in his baptism, orbits his star, it is very close to it (40% from the Tierra del Sol), which is a cold world bicycle -170 degree Celsius.

The world is "a frozen world because it gets very little energy from its star: only 2% of the sun's surface is available", the Ice Line & # 39; Nearby known as the water, the volatile compounds are murky.

Thus, the Barnard's surface is "highly unlikely" to have liquid water on the surface, but it replicates that it is beneath the soil.

In addition, it is considered to be the best possible planet for life outside the solar system compared to proximity. There is no chance of any kind of life on this planet. But "life sometimes finds ways to survive" warns the Spanish physicist.

Technologies These findings are possible for Doppler techniques. This is one of many ways for astronomers to find planets that are impossible to direct.

When a planet orbits a star, the gravitational pull of the planet causes the star to cause its star because it affects the motion of the star.

"According to physics, when a light source approaches the observer, the spectrum is slightly smaller into the blue and the wavelength of its wavelength diminishes when it moves in red and it reaches the rectum.As the star passes through a star, I realized there was a planet, "Ribas points out.

Red Dots, who searches for planets next to the solar system, thanks to the high precision measurements of telescopes across the globe from the discovery of the exponent of the Carmen's project.

These include both the European Southern Observatory (ESO) and the Harper Planet and UVS Spectrograph, a well-known hunter who collaborates with planetary research.

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