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Magnetar Fireballs and Short Bursts: Curved Spacetime Lensing, Quantum Electrodynamical Effects, Spectra, Polarization, and Impulse Responses

  • Authors: Zorawar Wadiasingh, Hoa Dinh Thi, Constantinos Kalapotharakos, Kun Hu, Matthew G. Baring, Alice K. Harding, George Younes, Sebastien Guillot, Andrea Sanna, Michela Negro, Jeremy D. Schnittman, Oliver J. Roberts, Eric Burns, Chin-Ping Hu, Ersin Göğüş

Zorawar Wadiasingh et al 2026 The Astrophysical Journal Supplement Series 286 .

  • Provider: AAS Journals

Caption: Figure 8.

A fiducial partial-arc fireball with parameters as indicated and ⊥-mode only splitting attenuation. This geometry highlights a rich time-energy structure possible in the IRs. Top row: IP intensity at 4, 12, 36, and 108 keV. Middle row: Stokes-I IR (left) and polarization maps Q / I and U / I with VB-off (top-right pair) and on (bottom-right pair). Bottom row: Q–U trajectories and energy-dependent PD. This partial-arc geometry exhibits coexisting direct and lensed delayed branches with strong chromatic polarization evolution.

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