Three-dimensional morphological asymmetries in the ejecta of Cassiopeia A using a component separation method in X-rays

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Fig. 6

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Quadrupole power-ratios P₂∕P₀ versus the octupole power-ratios P₃∕P₀ of the red- and blue-shifted images of the different line emissions shown in Fig. 3, normalized with the quadrupole and octupole power-ratios of the total images. The dots and error bars are obtained in the same way as in Fig. 5.

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