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Using the SMA and VLA, we have imaged the massive protocluster NGC6334I(N) athigh angular resolution (0.5"~650AU) from 6cm to 0.87mm, detecting 18 newcompact continuum sources. Three of the new sources are coincident withpreviously-identified water masers. Together with the previously-known sources,these data bring the number of likely protocluster members to 25 for aprotostellar density of ~700 pc^-3. Our preliminary measurement of theQ-parameter of the minimum spanning tree is 0.82 -- close to the value for auniform volume distribution. All of the (nine) sources with detections atmultiple frequencies have SEDs consistent with dust emission, and two (SMA1band SMA4) also have long wavelength emission consistent with a centralhypercompact HII region. Thermal spectral line emission, including CH3CN, isdetected in six sources: LTE model fitting of CH3CN(J=12-11) yieldstemperatures of 72-373K, confirming the presence of multiple hot cores. Thefitted LSR velocities range from -3.3 to -7.0 km/s, with an unbiased meansquare deviation of 2.05 km/s, implying a dynamical mass of 410+-260 Msun forthe protocluster. From analysis of a wide range of hot core molecules, thekinematics of SMA1b are consistent with a rotating, infalling Keplerian disk ofdiameter 800AU and enclosed mass of 10-30 Msun that is perpendicular (within 1degree) to the large-scale bipolar outflow axis. A companion to SMA1b at aprojected separation of 0.45" (590AU; SMA1d), which shows no evidence ofspectral line emission, is also confirmed. Finally, we detect one 218.440GHzand several 229.7588GHz Class-I methanol masers.

Subarcsecond Imaging of the NGC 6334 I(N) Protocluster: Two Dozen Compact Sources and a Massive Disk Candidate