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To study the role of protosellar jets and outflows in the time evolution ofthe parent cores and the protostars, the astronomical community needs a largeenough data base of infrared images of protostars at the highest spatialresolution possible, to reveal the details of their morphology. Spitzerprovides unprecedented sensitivity in the infrared to study both the jet andoutflow features, however its spatial resolution is limited by its 0.85mmirror. Here we use a high resolution deconvolution algorithm, "HiRes", toimprove the visualization of spatial morphology by enhancing resolution (tosub-arcsecond levels in the IRAC bands) and removing the contaminatingsidelobes from bright sources in a sample of 89 protostellar objects. Thesereprocessed images are useful to detect: (i) wide angle outflow seen inscattered light; (ii) morphological details of H2 emission in jets and bowshocks; and (iii) compact features in MIPS 24 micron images as protostar/ diskand atomic/ionic line emissions associated with the jets. The HiRes fits imagedata of such a large homogeneous sample presented here will be useful to thecommunity in studying these protostellar objects. To illustrate the utility ofthis HiRes sample, we show how the opening angle of the wide angle outflows in31 sources, all observed in the HiRes processed Spitzer images, correlates withage. Our data suggest a power law fit to opening angle versus age with anexponent of ~0.32 and 0.02, respectively for ages less than 8000 yr and greaterthan 8000 yr.

HiRes Deconvolved Spitzer Images of 89 Protostellar Jets and Outflows: New Data on Evolution of Outflow Morphology