---
res:
  bibo_abstract:
  - The detection of strong, large-scale magnetic fields at the surfaces of the oldest
    white dwarfs might point toward a hidden internal magnetic field slowly rising
    to the surface. In addition, strong magnetic fields have recently been measured
    through asteroseismology in the radiative interiors of red giant stars, the progenitors
    of white dwarfs. To investigate the potential connection between these observations,
    we revisited the fossil field framework using asteroseismic detections to constrain
    the strength of such magnetic fields as red giants evolve into the white dwarf
    stage. We assumed that the magnetic field was either created during the core convection
    on the main sequence or that it fills the radiative interior as the star evolves
    on the red giant branch. From these initial conditions, we evolved the magnetic
    flux, allowing for magnetic diffusion along the evolution of a modeled 1.5 M⊙
    star. We find that measured field strengths in red giants attributed to the hydrogen-burning
    shell are compatible with the field amplitudes and emergence timescales of magnetized
    white dwarfs. On the contrary, magnetic fields generated solely from a convective-core
    dynamo on the main sequence and detectable on the red giant branch would be buried
    too deep in the star and would not match the breakout timescales or the field
    strengths of magnetic white dwarfs. Therefore, for us to connect magnetic fields
    observed along the late evolution of stars via a fossil field we would need to
    find a broadly magnetized internal radiative zone on the red giant branch.@eng
  bibo_authorlist:
  - foaf_Person:
      foaf_givenName: Lukas
      foaf_name: Einramhof, Lukas
      foaf_surname: Einramhof
      foaf_workInfoHomepage: http://www.librecat.org/personId=f1497a1a-72ef-11ef-b75a-fd877bbf6e8c
  - foaf_Person:
      foaf_givenName: Lisa Annabelle
      foaf_name: Bugnet, Lisa Annabelle
      foaf_surname: Bugnet
      foaf_workInfoHomepage: http://www.librecat.org/personId=d9edb345-f866-11ec-9b37-d119b5234501
    orcid: 0000-0003-0142-4000
  - foaf_Person:
      foaf_givenName: L. M.
      foaf_name: Calcaferro, L. M.
      foaf_surname: Calcaferro
  - foaf_Person:
      foaf_givenName: Lucas
      foaf_name: Barrault, Lucas
      foaf_surname: Barrault
      foaf_workInfoHomepage: http://www.librecat.org/personId=4471a8fd-32c1-11ee-a9a4-fb670d398f64
  - foaf_Person:
      foaf_givenName: S. B.
      foaf_name: Das, S. B.
      foaf_surname: Das
  bibo_doi: 10.1051/0004-6361/202659069
  bibo_volume: 708
  dct_date: 2026^xs_gYear
  dct_isPartOf:
  - http://id.crossref.org/issn/0004-6361
  - http://id.crossref.org/issn/1432-0746
  dct_language: eng
  dct_publisher: EDP Sciences@
  dct_title: Magneto-archeology of white dwarfs@
...