Double degenerate mergers as progenitors of high-field magnetic white dwarfs
Cita com:
hdl:2117/24427
Tipus de documentArticle
Data publicació2011-04-10
Condicions d'accésAccés obert
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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 mech
anism that produces the magnetic
field are still unknown. Here we show that the hot, convective, diffe
rentially 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 magn
etic white dwarfs produced in
this way is consistent with that found in the Solar neighborhood.
CitacióGarcia-berro, E. [et al.]. Double degenerate mergers as progenitors of high-field magnetic white dwarfs. "Astrophysical journal", 10 Abril 2011, vol. 749, núm. 1, p. 1-6.
ISSN0004-637X
Versió de l'editorhttp://arxiv.org/abs/1202.0461
Fitxers | Descripció | Mida | Format | Visualitza |
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double.degenerate.pdf | DOUBLE DEGENERATE MERGERS AS PROGENITORS OF HIGH-FIELD MAGNETIC WHITE DWARFS | 159,5Kb | Visualitza/Obre |