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The Long Quest for Vacuum Birefringence in Magnetars: 1E 1547.0–5408 and the Elusive Smoking Gun

Magnetars are now known to be among the most strongly polarized celestial sources in X-rays. Here, we report on the 500 ks observation of the magnetar 1E 1547.0−5408 performed by the Imaging X-ray Polarimetry Explorer (IXPE) in 2025 March. The IXPE spectrum is well reproduced by a single thermal com...

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Principais autores: Roberto Taverna, Roberto Turolla, Lorenzo Marra, Ruth M.E. Kelly, Alice Borghese, Gian Luca Israel, Sandro Mereghetti, Andrea Possenti, Silvia Zane, Michela Rigoselli
Format: Artigo
Sprog:Inglês
Udgivet: IOP Publishing 2026-01-01
Serier:The Astrophysical Journal
Fag:
Magnetars
Neutron stars
Polarimetry
Single x-ray stars
Online adgang:https://doi.org/10.3847/1538-4357/ae5c9d
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