Dead planets can send signals we might receive on Earth, scientists say.
Scientists hope to listen to them, aspire to find the nuclei of the planets and learn more about the vast universe.
The researchers saw planets orbiting the stars that destroyed them: “When the sun burns all of its fuel and throws away its outer shell, it destroys nearby objects and burns by burning their outer layers.”
The remaining planetary cores can be seen in space and exist long enough to be detected from Earth.
The technique used to observe these planets is based on a similar technique that researchers used to find the first confirmed alien planets. To search for a planet, scientists look for the radio waves emitted by its star and hope they can see white dwarfs by monitoring similar energy pulses.
A white dwarf and a stripped planet core can together create an electrical circuit. They amplify and transmit signals through space, which means they can be detected by radio telescopes on Earth.
The researchers all hope their observatories can soon find potential candidates and uncover messages.
Dr Dimitri Veras of the University of Warwick said: “There is a vantage point in detecting these planetary nuclei: one that is too close to the white dwarf will be destroyed by the force of the tides and one that is too far away cannot. not In addition, if the magnetic field is too strong, it will push the nucleus into the white dwarf and destroy it, so we should only look for the planets around the white dwarfs which have a weaker magnetic field at a distance between about 3 rays solar cells and the Mercury-Sun distance No one has ever found the bare core of a large planet or by monitoring magnetic signals or a large planet orbiting the star. The white dwarf, therefore, results here will represent the “firsts” in three different ways for the planetary system.
“We will use the results of this work as a guide for designing radio detectors for planetary nuclei around white dwarfs,” said Alexander Wolszczan of Pennsylvania State University. Considering the presence of planetary debris around many of them, we think the odds of our interesting findings are quite promising. “
“Just finding a nucleus will help reveal the history of these star systems, because in order for a nucleus to reach this stage it will have no atmosphere and mantle at the same time,” added Dr Veras. . Such a nucleus can also give us insight into our own distant future and the future development of the solar system.
