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arXiv · 0707.3294

12 and 18 micron images of dust surrounding HD 32297

Margaret M. Moerchen·Charles M. Telesco·James M. De Buizer·Christopher Packham·James T. Radomski
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Abstract

We present the first subarcsecond-resolution images at multiple mid-IR wavelengths of the thermally-emitting dust around the A0 star HD 32297. Our observations with T-ReCS at Gemini South reveal a nearly edge-on resolved disk at both 11.7 microns and 18.3 microns that extends ~150 AU in radius. The mid-IR is the third wavelength region in which this disk has been resolved, following coronagraphic observations by others of the source at optical and near-IR wavelengths. The global mid-IR colors and detailed consideration of the radial color-temperature distribution imply that the central part of the disk out to ~80 AU is relatively deficient in dust.

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Margaret M. Moerchen, Charles M. Telesco, James M. De Buizer, Christopher Packham, James T. Radomski. 2007-07-23. 12 and 18 micron images of dust surrounding HD 32297. https://doi.org/10.1086/521722

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