Fig. 8

Temporal evolution of the dust clouds between 1998 and 2010. a) PSF-subtracted image of Antares taken at 20.8 μm in 1998 by Marsh et al. (2001). b) PSF-subtracted image obtained in 2010 in this work using Aldebaran as the PSF reference. The color in the central core is saturated to show the clumpy structures clearly. c) Comparison between the PSF-subtracted images taken in 1998 (contour) and 2010 (image). The outward motions of the clumps A, B1, B2, and E are marked by the arrows. The position of the central star is marked with ⋆ in all panels. North is up, and east to the left.
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