Revisiting the Distance to Radio Loops I and IV Using Gaia and Radio/Optical Polarization Data

  title={Revisiting the Distance to Radio Loops I and IV Using Gaia and Radio/Optical Polarization Data},
  author={Georgia V. Panopoulou and Clive Dickinson and Anthony C. S. Readhead and T. J. Pearson and M. W. Peel},
  journal={The Astrophysical Journal},
Galactic synchrotron emission exhibits large angular scale features known as radio spurs and loops. Determining the physical size of these structures is important for understanding the local interstellar structure and for modeling the Galactic magnetic field. However, the distance to these structures is either under debate or entirely unknown. We revisit a classical method of finding the location of radio spurs by comparing optical polarization angles with those of synchrotron emission as a… 

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