Regular Article - Theoretical Physics
Polarized images of synchrotron radiations in curved spacetime
Department of Physics, Peking University, No. 5 Yiheyuan Rd, 100871, Beijing, People’s Republic of China
2 Center for High Energy Physics, Peking University, No. 5 Yiheyuan Rd, 100871, Beijing, People’s Republic of China
3 Department of Physics, Beijing Normal University, 100875, Beijing, People’s Republic of China
4 Collaborative Innovation Center of Quantum Matter, No. 5 Yiheyuan Rd, 100871, Beijing, People’s Republic of China
Accepted: 18 December 2022
Published online: 24 December 2022
In this work, we derive two formulas encoding the polarization direction and luminosity of synchrotron radiations from the moving electrons in curved spacetime under the geometric optics approximation. As an application, we further study the polarized images of synchrotron radiations from electron sources in Schwarzschild black hole spacetime with a vertical and uniform magnetic field. In particular, by focusing on the circular orbits of electrons on the equatorial plane, we show the polarized images of the synchrotron radiations from these orbits for different observational angles and discuss the variations of the polarization directions concerning the angles.
© The Author(s) 2022
Open Access This article is licensed under a Creative Commons Attribution 4.0 International License, which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons licence, and indicate if changes were made. The images or other third party material in this article are included in the article’s Creative Commons licence, unless indicated otherwise in a credit line to the material. If material is not included in the article’s Creative Commons licence and your intended use is not permitted by statutory regulation or exceeds the permitted use, you will need to obtain permission directly from the copyright holder. To view a copy of this licence, visit http://creativecommons.org/licenses/by/4.0/.
Funded by SCOAP3. SCOAP3 supports the goals of the International Year of Basic Sciences for Sustainable Development.