Other
Scientific paper
Sep 2004
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2004sptz.prop.3315n&link_type=abstract
Spitzer Proposal ID #3315
Other
Scientific paper
Most of the observational work on the properties of young stellar outflows in the mid-infrared has been done for relatively bright objects. The new images obtained by Spitzer of the young stellar outflow HH 46/47, demonstrate what higher sensitivity and spatial resolution can do with optically fainter objects at longer wavelengths. We propose an IRAC/MIPS imaging and IRS spectral mapping survey of 7 other well-studied Herbig-Haro flows. The targets are selected to span a range of central star luminosities, ambient medium densities, and flow characteristics. Our goal is to detect the full extent of their outflow cavities in deep IRAC images, and their chemical make up using IRS spectra. The mid-infrared morphology of the outflows will be compared to existing optical and near-infrared images of jets and bowshocks, and to maps of high velocity molecular gas. With geometry of the outflow cavities defined by the mid-infrared images, we can gain the first clear understanding of where ambient cloud material is being entrained by the collimated flow, and further constrain the dynamical models of proto-stellar flows.
Carey Sean
Eislöffel Jochen
Latter William
Marleau Francine
Morris Patrick
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