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SUMMER 2006:

        Using primarily data from 2MASS and GLIMPSE we examined three high-mass, southern,
    star-formation regions (central coordinates: G316.75-0.08, G321.05-0.50, G327.30-0.58;
    respective radii: 16', 27', 16'; respective distances: 2.9kpc, 4.1kpc, 2.9kpc). We 
    incorporated the use of a 2-D radiation transfer model fitter, which enabled us to
    analyze our regions on a wide range of scales. We utilized the fitter's output data 
    to map extinction levels; extract spectral energy distributions for protostellar 
    candidates; put upper limits on YSO evolutionary stages; construct Initial Mass 
    Functions, and measure preferred protostellar spacings. Within the fitting parameters
    we allowed for large variations in the possible distances and chi-squared values of the
    fitted models. With the exception of revisions on the most massive protostars in each 
    region, and the removal of a detected binary star, we did no further corrections for 
    poorly fitted sources; hoping that our pre-fitting criteria were sufficient, and that 
    there was no bias in the distribution of such sources. We used CO emission data (Dame 
    et al. 2001) and previous observations to determine the positions of masers, ultra-compact
    HII regions, and molecular clouds relative to areas of increased star formation. We 
    conclude that both G316, and G327 are active star formation regions embedded in a large
    molecular complex, and that they both exhibit strong evidence for triggered star formation.

 Download AAS 2006 Poster:
         High-Mass Star Formation in Three Southern, Galactic Cores
 Authors: Chunev, Georgi; Watson, Christer; GLIMPSE Team

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