A newly discovered star just 773 light-years away belongs to one of the rarest categories in the Milky Way.
, a type of star so rarely seen that only one other is known in the entire galaxy. Its discovery confirms that these stars exist in a class of their own, and it gives us a new tool for interpreting not just the evolution of stars but also the strange signals detected throughout the Milky Way that defy conventional explanation.
The discovery seems to confirm that the magnetic field of a white dwarf is generated by an internal dynamo, similar to how"The origin of magnetic fields is a big open question in many fields of astronomy, and this is particularly true for white dwarf stars,""The magnetic fields in white dwarfs can be more than a million times stronger than the magnetic field of the Sun, and the dynamo model helps to explain why.
frameborder="0″ allow="accelerometer; autoplay; clipboard-write; encrypted-media; gyroscope; picture-in-picture; web-share" allowfullscreen> White dwarfs are a similar kind of stellar remnant. They're the collapsed cores of dead stars below around 8 solar masses. They're less dense than neutron stars and have larger radii. As far as we knew until just a few years ago, they also don't seem to turn into pulsars.
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