Interstellar Weather Vanes: GLIMPSE Mid-Infrared Stellar Wind Bow Shocks in M17 and RCW 49

  title={Interstellar Weather Vanes: GLIMPSE Mid-Infrared Stellar Wind Bow Shocks in M17 and RCW 49},
  author={Matthew S. Povich and Robert A. Benjamin and Barbara. A. Whitney and Brian L. Babler and R{\'e}my Indebetouw and Marilyn R. Meade and Edward Bruce Churchwell},
  journal={The Astrophysical Journal},
  pages={242 - 248}
We report the discovery of six infrared stellar wind bow shocks in the Galactic massive star formation regions M17 and RCW 49 from Spitzer GLIMPSE (Galactic Legacy Infrared Mid-Plane Survey Extraordinaire) images. The Infrared Array Camera (IRAC) on the Spitzer Space Telescope clearly resolves the arc-shaped emission produced by the bow shocks. We combine Two Micron All-Sky Survey (2MASS), Spitzer, MSX, and IRAS observations to obtain the spectral energy distributions (SEDs) of the bow shocks… 

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