Ghost of a Shell: Magnetic Fields of Galactic Supershell GSH 006โ15 +7
Ghost of a Shell: Magnetic Fields of Galactic Supershell GSH 006โ15 +7
We identify a counterpart to a Galactic supershell in diffuse radio polarisation, and use this to determine the magnetic fields associated with this object. GSH 006$-$15$+$7 has perturbed the polarised emission at 2.3$\,$GHz, as observed in the S-band Polarisation All Sky Survey (S-PASS), acting as a Faraday screen. We model โฆ