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Mid-IR Observations of Mira Circumstellar Environment

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arxiv astro-ph/0106344 v1 pith:A2GTKGQR submitted 2001-06-19 astro-ph

Mid-IR Observations of Mira Circumstellar Environment

classification astro-ph
keywords miracircumstellarenvironmentmid-irobservationsactivearoundcamera
verification ladder T0 review T1 audit T2 compute T3 formal T4 reserved
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This paper presents results from high-angular resolution mid-IR imaging of the Mira AB circumbinary environment using the MIRAC3 camera at the NASA Infrared Telescope Facility (IRTF). We resolved the dusty circumstellar envelope at 9.8, 11.7 and 18 micron around Mira A (o Ceti), and measured the size of the extended emission. Strong deviations from spherical symmetry are detected in the images of Mira AB system, including possible dust clumps in the direction of the companion (Mira B). These observations suggest that Mira B plays an active role in shaping the morphology of the circumstellar environment of Mira A as it evolves toward the Planetary Nebula phase.

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