New Universal Discovery - Super Earth Residing Beside Our Earth

Rodiano Bonacci
Novembre 18, 2018

The super-Earth is believed to be located close to the star system's snow line.

And Barnard's Star is getting closer to us every day: In about 10,000 years, the red dwarf will take over the nearest-star mantle from the Alpha Centauri system. In 2016, an exoplanet (Proxima b) had been discovered around the Earth's closest star, the Centaur Approach, about four light years from Earth.

This breakthrough, announced in a paper published by the journal Nature, is part of the Red Dots and CARMENES projects, which previously helped uncovered Proxima Centauri.

The researchers were looking for the smallest change in the radiation spectrum of stars that could indicate the fluctuations in its trajectory caused by the influence of gravity of large rocky planet.

"Barnard's star is an infamous object among astronomers and exoplanet scientists, as it was one of the first stars where planets were initially claimed but later proven to be incorrect".

This planet is revolving round a dwarf star that the scientists named Barnard which is also known as a "Red Dwarf" and is one of the nearest to our sun.

Despite relative closeness to Barnard's Star (0.4 times the distance between Earth and the Sun), the exoplanet receives little energy from its faded host: only 2 percent that which the Sun provides our Earth.

Barnard's star appears to move across the Earth's night sky faster than any other star.

A proximity which leaves the hope to study it soon with the arrival of new instruments of observation more powerful. "After a very careful analysis, we are 99 percent confident that the planet is there", researcher Ignasi Ribas of the Institute of Space Studies of Catalonia and the Institute of Space Sciences said in a statement. These wobbles affect the light coming from the star.

If the recent news of a potential alien spacecraft entering our solar system wasn't enough, it now looks likely that there could even be a bigger, better human civilisation not so far away from us - so get excited (or slightly scared), people.

Is this planet really, though?

"However, we must remain cautious and collect more data to nail the case in the future, because natural variations of the stellar brightness resulting from star spots can produce similar effects to the ones detected".

To find Barnard's Star b, Ribas and the team studied more than 20 years' worth of observations from seven separate instruments.

Altre relazioniGrafFiotech

Discuti questo articolo

Segui i nostri GIORNALE