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X-ray Polarization at the Crossroads

Published online by Cambridge University Press:  27 February 2023

Jeremy Heyl Open the ORCID record for Jeremy Heyl [Opens in a new window] ,
Ilaria Caiazzo  and
Denis González-Caniulef
Jeremy Heyl
Affiliation:
Department of Physics and Astronomy, University of British Columbia, Vancouver BC V6T 1Z1, Canada
Ilaria Caiazzo
Affiliation:
TAPIR, Walter Burke Institute for Theoretical Physics, Mail Code 350-17, Caltech, Pasadena, CA 91125, USA
Denis González-Caniulef
Affiliation:
Department of Physics and Astronomy, University of British Columbia, Vancouver BC V6T 1Z1, Canada
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Abstract

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We argue that measurements of X-ray polarization using the recently launched Imaging X-ray Polarimetry Explorer will answer many open questions about magnetars in particular the physical state of their surfaces, whether vacuum birefringence exists, and the nature of the hard X-ray emission from these objects. We outline the capabilities of the instrument, specific models and the results of simulations for the magnetar 4U 0142+61.

Keywords

stars: magnetarsX-rays: starstars: atmospherespolarizationplasmasscatteringstars: individual: 4U 0142+61, 1RXS J170849.0-400910
Type
Contributed Paper
Information
Proceedings of the International Astronomical Union , Volume 16 , Symposium S363: Neutron Star Astrophysics at the Crossroads: Magnetars and the Multimessenger Revolution , June 2020 , pp. 80 - 91
Creative Commons
Creative Common License - CCCreative Common License - BY
This is an Open Access article, distributed under the terms of the Creative Commons Attribution licence (https://creativecommons.org/licenses/by/4.0/), which permits unrestricted re-use, distribution, and reproduction in any medium, provided the original work is properly cited.
Copyright
© The Author(s), 2023. Published by Cambridge University Press on behalf of International Astronomical Union

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