About 8,150 light-years from Earth, a white dwarf star named Gaia22ayj has intrigued astronomers. Its unusual behavior, ...

The future of yellow dwarf stars, like our sun, is determined almost entirely by their mass. The most massive stars, about eight to 12 times heftier than the sun, can explode as supernovae ...

Scientists have discovered two rare white dwarfs—which are among the dimmest stars in the universe—that feature changes in their surface composition caused by magnetic fields. This brings the ...

The white dwarf’s magnetic field can grab material in the wind of its companion and channel it down to the magnetic poles, making them glow. Remarkably we can measure the size and location of these ...

“Magnetic fields can prevent the mixing of materials. So, if the magnetic field is stronger on one side, then that side would have less mixing and thus more hydrogen.” ...

About 20% of white dwarfs are magnetic, and some have field strengths of up to 1 billion Gauss. By comparison, Earth’s magnetic field is half a Gauss, while the magnetic field strength on the surface ...

Although astronomers know the white dwarf’s magnetic field powers the pulses, they are still investigating the exact driving mechanism. In neutron star pulsars, no companion star is required.

Artist’s impression of WD 0816-310, a magnetic white dwarf with a metal scar. This scar is thought to have come from the star consuming a planetary fragment.

About 20% of white dwarfs possess a strong magnetic field. Some white dwarfs, like this one, have both traits - they have an atmosphere polluted by metal elements and are permeated by a magnetic ...

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. The discovery of J1912−4410 provided ...

Astronomers have discovered a white dwarf star, or the burnt core of a dead star, that has two completely different faces. One is made of hydrogen, while the other is made of helium.

"The data taken at the W. M. Keck Observatory provided firm evidence that this system had a strong magnetic field and was funneling matter onto the white dwarf," Rodriguez says.