Auroras are not only on Earth

The Aurora on Jupiter

Polar lights — result of the collision of charged particles from interstellar space with atoms of the atmosphere of a celestial body. On Earth they can be observed in the polar regions. If you live in Russia, you are most likely to see this beautiful natural phenomenon will appear in the vicinity of the Kola Peninsula.

Auroras occur not only on Earth. Astronomers were able to detect them in the atmosphere of the planets of the Solar system on Venus and Mars. On the red planet, despite its name, there are in addition to the poles and in Equatorial regions, because the field of the planet is a remnant of the once full field.
Recently, astrophysicists from the University of Leicester managed to find the auroras outside of our planetary system. In the studies, the researchers used a model of the emergence of currents in the atmosphere of the gas giant, taking the example of Jupiter. It turned out that the model is appropriate for brown dwarfs, the celestial bodies representing the intermediate between gas giants and stars. The mass of these objects is sufficient to ensure that at some stage of their development within them the thermonuclear reaction, but this mass is not enough to maintain the "burning" of hydrogen, the process that power ordinary stars.

Thus, the researchers were able to learn more about the features of electromagnetic radiation brown dwarfs around them must be a strong radiance. This is the first information of this kind for objects outside the Solar system.