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Christer Watson edited subsection_Infall_Four_sources_N62__.tex
almost 9 years ago
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If we use the GBT beamsize, adjusted for the near kinematic distance, for R, then we calculate a mass infall rate of 2.9 $\times$ 10$^{-5}$ M$_\odot$/yr. This result is consistent with massive or intermediate-mass star formation. However, if we used a smaller value for R, as suggested by the small source size visible in the 8 $\mu$m GLIMPSE image, the mass infall rate would be proportionally smaller.
An alternative interpretation of these three line-profiles is that they are caused by alignment of two clouds along the line-of-sight. Observing an optically-thin tracer, such as $^{34}$CS would distinguish between these interpretations since the infall-model would predict a single-peak whereas the two cloud model predicts a double-peak.