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Scientists confirm the existence of a Earth-like planet that may contain water

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Confirmed Astronomers The existence of Proxima B, which was first discovered in 2016 and is 4.2 light-years away from us the sunWhich makes it the closest Earth-like planet to us.

According to scientists, the “Proxima B” mass is 1.17 times the Earth’s mass, and it is located in the lively area around the star “Proxima Centauri”, and it revolves around it every 11 days.

The planet “Proxima B” was first discovered in 2016 using the European Southern Observatory Observatory “HARPS”, but the latest analysis was carried out by the European “espresso” spectrometer, which is 3 times more accurate than the HARPS observatory, allowing accurate data on the size of the The outer planet and the timing of the orbits.

The analysis confirmed by the “espresso spectroscopy” that the distant planet gets from its star the same amount of energy that the Earth receives from the sun, which means that its surface temperature indicates that the water will be in a liquid form and potentially harbor life.

Scientist Michel Mayor said, the winner Nobel Prize for Physics 2019, Professor Emeritus, Faculty of Science, University of Geneva, Switzerland: “The espresso spectroscopy has made it possible to accurately measure the mass of the planet for more than a tenth of the Earth’s mass, something that has never been known before.”

According to the study, “The discovery of Proxima B represents one of the most important milestones in exoplanetary sciences in recent years. However, the limited accuracy of available radial velocity data and the difficulty of modeling stellar activity requires assurances of its mass relative to Earth,” according to the British newspaper “Daily Mail”.

“We aim to confirm the existence of Proxima B using independent measurements obtained using the new Espresso spectrometer, and to improve planetary parameters while utilizing improved accuracy,” the study added.

It is noteworthy that the rocky planet “Proxima B” is only 7.4 million kilometers from the star “Proxima Centauri”, equivalent to only 5 percent of the distance between the Earth and the sun, and it takes only 11.2 days to complete one cycle around the star.

As for the temperature on its surface, it can be between -90 and 30 degrees Celsius, according to the British “Daily Mail”.

Commenting on the study, the leader of the Espresso Research Team and Professor of Astronomy said in University of Geneva Switzerland, Francesco Bibi “We were very happy with the performance of the Harps Observatory, which has been responsible for discovering hundreds of exoplanets over the past 17 years … but we are really happy that the Espresso Spectrometer can achieve better measurements, which is fun and rewarding for the continuous teamwork of what Nearly 10 years. “

The team noted that determining the exact measurements of Proxima B brings it one step closer to finding life on this planet.

And with the theory that the outer planet may contain liquid water, the team also realizes that more research is necessary to determine whether life has evolved on its surface.

On the negative side, the Proxima Centauri star is a class of red active dwarf stars, and it sends large amounts of X-ray to Proxima B, so the planet receives about 400 times what the Earth receives from the sun, meaning that any life may You have probably developed an anti-radiation effect.

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Confirmed Astronomers The existence of Proxima B, which was first discovered in 2016 and is 4.2 light-years away from us the sunWhich makes it the closest Earth-like planet to us.

According to scientists, the “Proxima B” mass is 1.17 times the Earth’s mass, and it is located in the lively area around the star “Proxima Centauri”, and it revolves around it every 11 days.

The planet “Proxima B” was first discovered in 2016 using the European Southern Observatory Observatory “HARPS”, but the latest analysis was carried out by the European “espresso” spectrometer, which is 3 times more accurate than the HARPS observatory, allowing accurate data on the size of the The outer planet and the timing of the orbits.

The analysis confirmed by the “espresso spectroscopy” that the distant planet gets from its star the same amount of energy that the Earth receives from the sun, which means that its surface temperature indicates that the water will be in a liquid form and potentially harbor life.

Scientist Michel Mayor said, the winner Nobel Prize for Physics 2019, Professor Emeritus, Faculty of Science, University of Geneva, Switzerland: “The espresso spectroscopy has made it possible to accurately measure the mass of the planet for more than a tenth of the Earth’s mass, something that has never been known before.”

According to the study, “The discovery of Proxima B represents one of the most important milestones in exoplanetary sciences in recent years. However, the limited accuracy of available radial velocity data and the difficulty of modeling stellar activity requires assurances of its mass relative to Earth,” according to the British newspaper “Daily Mail”.

“We aim to confirm the existence of Proxima B using independent measurements obtained using the new Espresso spectrometer, and to improve planetary parameters while utilizing improved accuracy,” the study added.

It is noteworthy that the rocky planet “Proxima B” is only 7.4 million kilometers from the star “Proxima Centauri”, equivalent to only 5 percent of the distance between the Earth and the sun, and it takes only 11.2 days to complete one cycle around the star.

As for the temperature on its surface, it can be between -90 and 30 degrees Celsius, according to the British “Daily Mail”.

Commenting on the study, the leader of the Espresso Research Team and Professor of Astronomy said in University of Geneva Switzerland, Francesco Bibi “We were very happy with the performance of the Harps Observatory, which has been responsible for discovering hundreds of exoplanets over the past 17 years … but we are really happy that the Espresso Spectrometer can achieve better measurements, which is fun and rewarding for the continuous teamwork of what Nearly 10 years. “

The team noted that determining exact measurements of Proxima B brings it one step closer to finding life on this planet.

With the theory that the outer planet may contain liquid water, the team also realizes that more research is necessary to determine whether life has evolved on its surface.

On the negative side, the Proxima Centauri star is a class of red active dwarf stars, and it sends large amounts of X-ray to Proxima B, so the planet receives about 400 times what the Earth receives from the sun, meaning that any life may You have probably developed an anti-radiation effect.

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