Blowing in the wind: The dust wave surrounding $\sigma$ Ori AB

B. B. Ochsendorf, N. L. J. Cox, S. Krijt +5

Observations with the Spitzer Space Telescope and the WISE satellite have revealed a prominent arc-like structure at 50" ($\simeq 0.1$ pc) from the O9.5V/B0.5V system $\sigma$ Ori AB. We…