Mar 2008
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2008sptz.prop50354s&link_type=abstract
Spitzer Proposal ID #50354
Physics
Scientific paper
Our previous observations suggest that an infrared source within the GGD30 nebula is an example of an object in the earliest stages of the star formation process. Optical spectoscopy has revealed a Herbig-Haro Object associated with this source and radio interferometry has revealed an extended 3 mm continuum source at the same position as the infrared source. In addition, a Spitzer IRAC 8 micron image from the GLIMPSE Legacy program shows what appears to be the protostellar envelope of this source. We are requesting Spitzer IRS time to obtain a spectrum of this source and its envelope from 5 to 38 microns with a combination of the high and low resolution modules. Our immediate goals are to study the broad solid state dust features and to look for shock excited emission linesclose to the source. In the longer term we plan radiative transfer modeling to try and determine whether there is a disk close to the source and, provided we can obtain sufficient millimeter observations of the molecular content of the envelope, chemical modelling should the age of the envelope to be constrained.
Smith Robert
Wright Christopher
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