Image Details
Caption: Figure 4.
Cyg X-1 polarization in the soft, hard, and intermediate states. Allowed regions are at a 90% confidence level (CL). The polarization angles across different spectral states align closely with the radio jet direction, which has a position angle of −27° ± 8° (J. C. A. Miller-Jones et al. 2021).
© 2026. The Author(s). Published by the American Astronomical Society.