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| Home > Publications database > Evidence of vacuum birefringence from the polarisation of the optical emission from an Isolated Neutron Star |
| Report/Contribution to a conference proceedings/Contribution to a book | PUBDB-2018-01764 |
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2018
Verlag Deutsches Elektronen-Synchrotron
Hamburg
ISBN: 978-3-945931-17-2
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Please use a persistent id in citations: doi:10.3204/DESY-PROC-2017-02/mignani_roberto
Report No.: DESY-PROC-2017-02
Abstract: Isolated Neutron Stars are some of the most exciting stellar objects known to astronomers: they have the most extreme magnetic fields, with values up to $10^{15}$ G, and, with the exception of stellar-mass black holes, they are the most dense stars, with densities of $\approx 10^{14}$ g cm$^{-3}$. As such, they are perfect laboratories to test theories of electromagnetism and nuclear physics under conditions of magnetic field and density unattainable on Earth. In particular, the interaction of radiation with strong magnetic fields is the cause of the {\em vacuum birefringence}, an effect predicted by quantum electrodynamics in 1936 but that lacked an observational evidence until now. Here, we show how the study of the polarisation of the optical radiation from the surface of an isolated neutron star yielded such an observational evidence, opening exciting perspectives for similar studies at other wavelengths.
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Book/Proceedings/Report
13th "Patras" Workshop on Axions, WIMPs and WISPs, PATRAS 2017
13th Patras Workshop on Axions, WIMPs and WISPs, AXION-WIMP 2017, ThessalonikiThessaloniki, Greece, 15 May 2017 - 19 May 2017
Hamburg : Verlag Deutsches Elektronen-Synchrotron, DESY-PROC (2018) [10.3204/DESY-PROC-2017-02]
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