It became known that prevents the emergence of life on exoplanets

Stellar winds can Deplete the atmosphere of planets to make them uninhabitable.

Astronomers have narrowed down the range of potentially habitable planets, studying how the stellar wind can affect their environment. On Saturday, December 2.

In two works, astronomers have developed models showing that the stellar wind is the flow process of matter from stars into interstellar space – is able to Deplete the atmosphere of planets to make them uninhabitable.

In one study, scientists calculated how it could change over time, the atmosphere on Proxima Centauri b exoplanet orbiting the star Proxima Centauri, is four light years from Earth. The authors of the second study raised the question, how long on planets covered a lot of ice or a sea depth of 100 km, would survive the water.
“The traditional definition of the model and climatic zones in urban areas took into account only the surface temperature. But stellar wind can make a significant impact on the atmosphere of many exoplanets,” the researchers note.

As shown by calculations, destroyed by the stellar wind of the atmosphere prevents the water that evaporates to get back the rain ago, eventually leading to the desiccation of the surface of the planet. On Proxima Centauri b the action of the stellar wind can not just give the atmosphere to survive for so long on the planet managed to support life.

Thus, the number of potentially habitable planets reduced to those that have a strong enough magnetic field, resist wind and keep the atmosphere.

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