Scientists have discovered a huge wandering planet with a strong magnetic field


20 light-years from Earth is a very strange planet-like object that has a magnetic field of colossal strength. It is more than 200 times larger than Jupiter and about 16-54 times larger than Earth's. For a long time scientists could not understand what they really saw. There were several explanations. But so far, scientists can not figure out how an object called SIMP J01365663 + 0933473 (or SIMP) can support such a strong magnetic field while producing fantastically bright northern and southern lights at its poles.

As it turned out, not only mechanisms of formation of a magnetic field of the object were interested. Many other features of the SIMP prompt researchers to ask questions.

    "This object is primarily interesting in that it can shed light on the mechanisms and processes that generate magnetic fields of this force in planets outside the solar system," said lead author Melody Kao of Arizona State University (USA).

The scientists discovered the SIMP J01365663 + 0933473 in 2016 and confused it with a brown dwarf. Brown dwarfs are often referred to as "failed stars" because they have too much mass for ordinary planets, but not enough to call them full stars. According to the researchers, the mass of the planetary object SIMP is about 13 times larger than the mass of our Jupiter. In addition, the temperature of brown dwarfs is usually too high to be called planets, but at the same time much lower than that of stars. The surface temperature of the same SIMP J01365663 + 0933473 is estimated at 815 degrees Celsius, and the temperature of our sun is about 5500 degrees Celsius.

A new study of the object, the results of which were published in the journal Astrophysical Journal, suggests that SIMP should still be classified as a planet. Very unusual planet. And yet, as it turns out, SIMP is a wandering planet that is not bound to any particular star system. She has no native star. It just sails slowly in space. The object was monitored by the radio telescope VLA (Very Large Antenna Lattice).

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    "This object is right at the edge of the concepts of giant planets and brown dwarfs or" failed stars. "It seems to us that it hides many other surprises that might help us better understand the mechanisms of magnetic field generation in stars, we believe that these mechanisms can be characteristic not only for brown dwarfs, but also for gas giants and also for terrestrial planets ", comments Kao.

Observations with the VLA radio telescope made it possible for the first time to detect a strong magnetic field in a planet-like object outside the solar system. In addition, the telescope has helped scientists to notice the presence of his Auroras. In fact, the auroras themselves, or rather their radio background, have made it possible to find the object.

"The VLA detection of the object SIMP J01365663 + 0933473 on the radio waves of its Northern Lights shows that we have a new way to search for exoplanets," say the researchers.

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