<i>Chandra</i>Observations and Models of the Mixed‐Morphology Supernova Remnant W44: Global Trends
<i>Chandra</i>Observations and Models of the Mixed‐Morphology Supernova Remnant W44: Global Trends
We report on the Chandra observations of the archetypical mixed-morphology (or thermal composite) supernova remnant W44. As with other mixed-morphology remnants, W44's projected center is bright in thermal X-rays. It has an obvious radio shell but no discernible X-ray shell. In addition, X-ray-bright knots dot W44's image. The spectral analysis …