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[99.07] VLA OH Zeeman Observations of the NGC 6334 Complex Source A

E.A. Mayo (University of Kentucky), A.P. Sarma (DePaul University), T.H. Troland, N.P. Abel (University of Kentucky)

We present a detailed analysis of the NGC 6334 complex source A, a compact continuum source in the SW region of the complex. Our intent is to determine the significance of the magnetic field in the support of the surrounding molecular cloud against gravitational collapse. We have performed OH 1665 and 1667 MHz observations taken with the Very Large Array in the BnA configuration and combined these data with the lower resolution CnB data of Sarma et al. (2000). These observations reveal magnetic fields with values of the order of 350 \muG toward source A, with maximum fields reaching 500 \muG.

We have also theoretically modeled the molecular cloud surrounding source A using Cloudy, with the constraints to the model based on observation. This model provides significant information on the density of H₂ through the cloud and also the relative density of H₂ to OH which is important to our analysis of the region. We will combine the knowledge gained through the Cloudy modeling with Virial estimates to determine the significance of the magnetic field to the dynamics and evolution of source A.

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Bulletin of the American Astronomical Society, 36 5
© 2004. The American Astronomical Society.