Numerical and analytical modeling of polar-cap processes in magnetic white dwarfs finds pair creation viable only for P ≲ 100 s and B_d ≲ 10^10 G, rendering it difficult to sustain in observed objects.
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astro-ph.HE 2years
2026 2verdicts
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The Guitar Nebula requires extreme acceleration with η_acc ≳ 3/4 and traverses a dense low-ionization shell from an old supernova remnant in the pressure-driven snowplow regime.
citing papers explorer
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Study for curvature radiation and magnetic pair creation process on polar-cap region of magnetic white dwarf
Numerical and analytical modeling of polar-cap processes in magnetic white dwarfs finds pair creation viable only for P ≲ 100 s and B_d ≲ 10^10 G, rendering it difficult to sustain in observed objects.
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Guitar Nebula: extreme accelerator in extreme environment
The Guitar Nebula requires extreme acceleration with η_acc ≳ 3/4 and traverses a dense low-ionization shell from an old supernova remnant in the pressure-driven snowplow regime.