US EditionInformation from starquakes provides theoretical evidence for 'fossilized' magnetism in stars
Starquake data and simulations suggest the fields can persist for billions of years and later emerge at white dwarf surfaces.
7 Articles
7 Articles
Magnetism Frozen in Time.
Every star you've ever looked at is hiding a magnetic secret and it may have been hiding it since birth. A new theoretical study has connected, for the first time, the magnetic fields detected deep inside dying red giants with the magnetism found at the surfaces of their long dead remnants. These fields may be ancient fossils, born early in a star's life and surviving billions of years of violent transformation completely intact.
Starquakes Reveal Hidden Magnetic Fields in Red Giants, Tracing Stars' Earlier Lives
Learn how starquakes, subtle vibrations inside stars, revealed hidden magnetic fields in red giants and how this stellar archaeology links white dwarf magnetism to earlier stages of star evolution.
Information from starquakes provides theoretical evidence for 'fossilized' magnetism in stars
For the first time, new theoretical models, published in Astronomy & Astrophysics, connect the magnetism at the surface of long-dead stellar remnants (white dwarfs) with recent evidence of magnetism at the cores of their dying progenitors (red giants). The team, led by astrophysicists at the Institute of Science and Technology Austria (ISTA), argues that these magnetic fields might originate early in the stars' lives, and survive their entire ev…
Over billions of years, stars undergo dramatic transformations, from expansion to collapse into dense remnants. A recent study suggests that magnetic fields may fossilize within stars, persisting through each stage of evolution and emerging on the surface of their spectral remnants. This discovery sheds new light on stellar evolution and the role of magnetic fields in this process. Discovery of Magnetic Fields in Stars Researchers at the Austria…
For the first time, new theoretical models, published in Astronomy & Astrophysics, link magnetism to the surface of long-dead stellar remains (white dwarfs) with recent evidence of magnetism at the heart of their dying (red giants) progenitors. The team, led by astrophysicists from the Austrian Institute of Science and Technology (ISTA), says [...]
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