X-Ray Polarimetry: A New Era Begins with the Imaging X-Ray Polarimetry Explorer

Dear Colleagues,

The recent launch of the Imaging X-ray Polarimetry Explorer has ushered in a new era of high-energy astrophysics. High-energy polarization is the latest window into the universe that was opened in December 2021, promising to revolutionize our understanding of the cosmos. Indeed, these past two years have seen remarkable new discoveries, affirmed or revised our understanding of the high-energy processes, and settled decades-old debates. The purpose of this Special Issue is to summarize our current understanding of the X-ray polarization signatures from astrophysical objects and highlight the achievements to date of the IXPE mission. We also chart the way forward with IXPE operating as a community instrument and with the launch of new X-ray polarimetry missions.

Dr. Ioannis Liodakis
Dr. Philip Kaaret
Dr. Steven Ehlert
Guest Editors

Publisher’s notice:

As stated above, the central purpose of this Special Issue is to present research from IXPE collaboration results. Given this purpose, the Guest Editors’ contribution to this Special Issue may be greater than standard Special Issues published by MDPI. Further details on MDPI's Special Issue guidelines can be found here: https://www.mdpi.com/special_issues_guidelines. The Editorial Office and Editor-in-Chief of Galaxies has approved this and MDPI’s standard manuscript editorial processing procedure (https://www.mdpi.com/editorial_process) will be applied to all submissions. As per our standard procedure, Guest Editors are excluded from participating in the editorial process for their submission and/or for submissions from persons with whom a potential conflict of interest may exist. More details on MDPI’s Conflict of Interest policy for reviewers and editors can be found here: https://www.mdpi.com/ethics#_bookmark22.

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