HiRes Deconvolution of Outflow Cavities Imaged by Spitzer

Details HiRes Deconvolution of Outflow Cavities Imaged by Spitzer HiRes Deconvolution of Outflow Cavities Imaged by Spitzer

May 2007

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2007aas...210.8709v&link_type=abstract

American Astronomical Society Meeting 210, #87.09; Bulletin of the American Astronomical Society, Vol. 39, p.198

Astronomy and Astrophysics

Astronomy

Scientific paper

Circumstellar outflows are believed to play a central role in the dispersal of the envelope and the ejection of angular momentum from protostars and their associated disks. The opening angle of the outflow is an important indicator of the time evolution of the outflow and its effects on infall and accretion. The scattered light emission escaping out the outflow cavities can be observed in the deep Spitzer images in the IRAC bands. We present examples of HiRes deconvolved Spitzer IRAC images of outflow cavities. HiRes achieves sub-arcsec resolution (< 0.8") for IRAC channels at 3.6 and 4.5 microns and 1" at 5.8 and 8 microns. Furthermore, HiRes deconvolution removes all the diffraction lobes producing cleaner looking narrow image of the protostar and nearby bright stars. Thus HiRes analysis improves our ability to trace the outflow cavities. We also present geometric models of the outflow (inclination and deprojected opening angles) derived by fitting SEDs and images of the outflow cavities.
This work was performed by the Jet Propulsion Laboratory, California Institute of Technology, under contract with the National Aeronautics and Space Administration

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