Abstract
We have observed HD 44179 and the surrounding unidentified infrared (UIR) emission with a long-slit 10 μm spectrometer. By applying maximum entropy reconstruction methods to our images, we have found spatial variations in the spectra not apparent in previous work with beam sizes of several arcseconds diameter. We find that no UIR emission arises in the innermost regions of the source; instead, we observe only cool continuum emission. After its abrupt appearance 0″.5 from the central source, the UIR emission decays steadily with distance, except for an enhancement in the intensity of the 11.3 μm feature ∼1″.5 away from the central source
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