Vacuum birefringence and the polarized X-ray emission from a radio magnetar

Kouveliotou, C. et al. An X-ray pulsar with a superstrong magnetic field in the soft γ-ray repeater SGR1806 - 20. Nature 393, 235–237 (1998).

Lai, D. & Ho, W. C. G. Polarized X-ray emission from magnetized neutron stars: signature of strong-field vacuum polarization. Phys. Rev. Lett. 91, 071101 (2003).

van Adelsberg, M. & Perna, R. Soft X-ray polarization in thermal magnetar emission. Mon. Not. R. Astron. Soc. 399, 1523–1533 (2009).

Taverna, R., Turolla, R., Suleimanov, V., Potekhin, A. Y. & Zane, S. X-ray spectra and polarization from magnetar candidates. Mon. Not. R. Astron. Soc. 492, 5057–5074 (2020).

Heisenberg, W. & Euler, H. Folgerungen aus der Diracschen Theorie des Positrons. Z. Phys. 98, 714–732 (1936).

Schwinger, J. On gauge invariance and vacuum polarization. Phys. Rev. 82, 664–679 (1951).

Duncan, R. C. & Thompson, C. Formation of very strongly magnetized neutron stars - Implications for gamma-ray bursts. Astrophys. J. Lett. 392, L9–L13 (1992).

Paczynski, B. GB 790305 as a very strongly magnetized neutron star. Acta Astronaut. 42, 145–153 (1992).

Kaspi, V. M. & Beloborodov, A. M. Magnetars. Annu. Rev. Astron. Astrophys. 55, 261–301 (2017).

Harding, A. K. & Lai, D. Physics of strongly magnetized neutron stars. Rep. Prog. Phys. 69, 2631–2708 (2006).

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