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| Paper: |
On the Origin of High-field Magnetic White Dwarfs |
| Volume: |
469, 18th European White Dwarf Workshop (EUROWD12) |
| Page: |
423 |
| Authors: |
García-Berro, E.; Torres, S.; Lorén–Aguilar, P.; Aznar–Siguán, G.; Camacho, J.; Külebi, B.; Isern, J.; Althaus, L. G.; Córsico, A. H. |
| Abstract: |
High-field magnetic white dwarfs have been long suspected to be the
result of stellar mergers. However, the nature of the coalescing stars
and the precise mechanism that produces the magnetic field are still
unknown. Here we show that the hot, convective, differentially
rotating corona present in the outer layers of the remnant of the
merger of two degenerate cores is able to produce magnetic fields of
the required strength that do not decay for long timescales. We also
show, using an state-of-the-art Monte Carlo simulator, that the
expected number of high-field magnetic white dwarfs produced in this
way is consistent with that found in the solar neighborhood. |
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