Artistic vision of the surface of one of the middle planets in the TRAPPIST-1 system with a bright reflection of a star illuminating a rocky layer. Around a dwarf star, distant from us by 40 light years, 7 earth-sized planets will live. They are located in the habitable zone of the star.
Scientists decided to use the solar model to predict the ability of exoplanets to withstand the effects of a localized stellar wind. As they search for extraterrestrial life, researchers are trying to improve the tools they use. The new work focused on finding ways to measure the ability of the planet to withstand the impacts of stellar winds. At the same time, we decided to use the device previously used to study the Sun.
This is a solar model AWSoM, used to simulate the behavior of the solar corona. Scientists have configured it to study the stars in the center of other systems of the Milky Way, as well as stellar winds, making their way to the planets. The analysis focused on the three-star system TRAPPIST-1, found 3 years ago. Now it is known that there are 7 earth-sized planets located, three of which live in the habitable zone. Of the worlds e, f and g, the most attention was paid to the latter, since it has great potential for the presence of life. The test should test the ability of the planet to withstand stellar winds. The earth is protected from solar winds by a magnetic field and atmosphere. To predict the effect of winds on g, scientists added important parameters to the AWSoM model, such as stellar age, and then programmed to simulate a stellar wind. It turned out that life has a chance of survival if it is 125 miles below the ionosphere.