Kavli Affiliate: Cheng Peng
| First 5 Authors: Yiqian Chen, Lang Cheng, Peng Wang, Haitang Yang,
| Summary:
This study investigates polarized images of an equatorial
synchrotron-emitting ring surrounding hairy black holes within the
Einstein-Maxwell-scalar theory. Our analysis demonstrates qualitative
similarities between the polarization patterns of hairy black holes and
Schwarzschild black holes. However, due to the non-minimal coupling between the
scalar and electromagnetic fields, an increase in black hole charge and
coupling constant can substantially amplify polarization intensity and induce
deviations in the electric vector position angle. These effects may offer
observational signatures to distinguish hairy black holes from Schwarzschild
black holes.
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