X-ray Polarization: A New Era Begins

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

Manuscript Submission Information

Manuscripts should be submitted online at www.mdpi.com by registering and logging in to this website. Once you are registered, click here to go to the submission form. Manuscripts can be submitted until the deadline. All submissions that pass pre-check are peer-reviewed. Accepted papers will be published continuously in the journal (as soon as accepted) and will be listed together on the special issue website. Research articles, review articles as well as short communications are invited. For planned papers, a title and short abstract (about 100 words) can be sent to the Editorial Office for announcement on this website.

Submitted manuscripts should not have been published previously, nor be under consideration for publication elsewhere (except conference proceedings papers). All manuscripts are thoroughly refereed through a single-blind peer-review process. A guide for authors and other relevant information for submission of manuscripts is available on the Instructions for Authors page. Galaxies is an international peer-reviewed open access semimonthly journal published by MDPI.

Please visit the Instructions for Authors page before submitting a manuscript. The Article Processing Charge (APC) for publication in this open access journal is 1400 CHF (Swiss Francs). Submitted papers should be well formatted and use good English. Authors may use MDPI's English editing service prior to publication or during author revisions.

• X-ray polarization
• high-energy processes
• astrophysical jets
• black holes
• neutron stars
• supernovae remnants
• X-ray binaries
• magnetars
• pulsar wind nebulae