So far, in the search for exoplanets, scientists could not detect radio signals from these planets. However, they believe that the radio signals of distant solar systems could give the astronomers of valuable information on the characteristics of the planet they emanate. A research paper published by the Scientists of the University of Rice presented a better way to determine the most likely exoplanets to produce detectable radio signals according to the activity in the magnetosphere of the Night of the Planet.
The study shows that the radio signals emanating from the edition of an exoplanet seem to be at their maximum during the high solar activity phases. The study also found that those coming from the night of the planet could add significantly to the signal. The information on the magnetosphere of the planet are of particular interest for scientists, because the force of the magnetosphere around an exoplanet indicates how much it will be protected from the solar wind from its host.
The Magnetosphere of the Earth is one of the essential reasons that the planet keeps life, because it protects us from the radiation and the solar wind. The magnetic field force data could illuminate planet interiors and allow researchers to understand how the shape of the planets. Here on Earth, an analytical tool called the Bode Law helps to establish a linear relationship between the solar wind and the radio broadcasts of the planets in its path. The researchers attempted to apply the law to exoplanet systems with little success.
Researchers in the new study indicate that current analytical models are mainly based on emissions supposed to emerge from the polar region of an exoplanet, which can be seen on earth as an Aurora. The new study adds a digital model to those used to estimate the emissions of the polar region to provide a complete image of emissions around an entire exoplant. Night emissions do not necessarily come from a single large spot, such as aurora around the North Pole, but different parts of the magnetosphere. During strong solar activity, night spots could increase total emissions from at least one order of magnitude.