@article{12446,
  author = {Ramesh Narayan and Daniel Palumbo and Michael Johnson and Jason Dexter and et al.},
  title = {The Polarized Image of a Synchrotron-emitting Ring of Gas Orbiting a Black Hole},
  year = {2021},
  journal = {The Astrophysical Journal},
  volume = {912},
  pages = {35},
  month = {2021-05},
  doi = {10.3847/1538-4357/abf117},
}