The Temperature and Ionization of Unshocked Ejecta in Cas A

J. C. Raymond, B. -C. Koo, Y. -H. Lee +3

The supernova remnant Cassiopeia A (Cas A) is one of the few remnants in which it is possible to observe unshocked ejecta. A deep 1.64 micron image of Cas A shows a patch of diffus…