Search for an Optical Remnant of the Cassiopeia A Supernova


EIGHTEEN plates obtained with the 200 inch (5 m) Hale telescope between 1951 and 1968 have been used to study the motions of the luminous filaments1 associated with the radio source Cas A. The centre of expansion which is found from these motions is given in Table 1. The smaller mean errors of the present determination of the centre of expansion are almost… (More)
DOI: 10.1038/223814a0


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