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W.T. Reach, J. Rho, T. G. Pannuti (SSC/Caltech), E. Churchwell, M. Meade, B. Babler, R. Indebetouw (U. Wisconsin), B. Whitney (SSI/U. Colorado)
We searched for infrared conunterparts of known supernova remnants that fall within the boundaries of the Spitzer/GLIMPSE Legacy survey (galactic coordinates |b|<1, 65>|l|>10). The survey uses the Infrared Array Camera (IRAC) with four bands at 3.6, 4.5, 5.8, and 8 microns. Ninety-six known supernova remnants are included in the survey, which is ongoing but nearly complete. We detected infrared emission from several supernova remnants, and for many of them it is the first detection of their infrared emission. The 4.5 micron images make at least some supernova remnants distinct from the blindingly bright emission of HII regions and molecular clouds in the galactic plane. The 4.5 micron waveband in these cases is dominated by molecular line emission (H2 and CO) and possibly Brackett alpha. The infrared images reveal not only the supernova remnants themselves but also nearby surrouning intersellar medium such as HII regions, dark clouds and possible young stars. Some of the most impressive images include G311.5-0.3, W44, 3C391, and RCW103.
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Bulletin of the American Astronomical Society, 36 5
© 2004. The American Astronomical Society.