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Fig. 2

image

Continuum-subtracted ISO SWS spectra from 1996 and 1997 are shown by the red and blue lines. The opacity curves of amorphous Al2O3, MgFeSiO4, FeO, Ca2Mg0.5Al2Si1.5O7 and Ca2Al2SiO7 are shown by the yellow, light brown, light blue, purple, and blue dashed lines, respectively. The opacity curves are scaled to compared them with the stellar-continuum-subtracted spectrum.

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