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G11.92-0.61-MM2: A Bonafide Massive Prestellar Core?
C. J. Cyganowski, C. L. Brogan, T. R. Hunter +6
Core accretion models of massive star formation require the existence of stable massive starless cores, but robust observational examples of such objects have proven elusive. We re…
Subarcsecond Imaging of the NGC 6334 I(N) Protocluster: Two Dozen Compact Sources and a Massive Disk Candidate
T. R. Hunter, C. L. Brogan, C. J. Cyganowski +1
Using the SMA and VLA, we have imaged the massive protocluster NGC6334I(N) at high angular resolution (0.5"~650AU) from 6cm to 0.87mm, detecting 18 new compact continuum sources. T…
The cometary HII regions of DR 21: Bow shocks or champagne flows or both?
K. Immer, C. Cyganowski, M. J. Reid +1
We present deep Very Large Array H66 radio recombination line (RRL) observations of the two cometary HII regions in DR 21. With these sensitive data, we test the "hybrid" bow sh…