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Evolution of Magnetic Fields in High Mass Star Formation: SMA dust polarization image of the UCHII region G5.89-0.39
Ya-Wen Tang, Paul T. P. Ho, Josep Miquel Girart +3
We report high angular resolution (3") Submillimeter Array (SMA) observations of the molecular cloud associated with the Ultra-Compact HII region G5.89-0.39. Imaged dust continuum…
The L723 low mass star forming protostellar system: resolving a double core
J. M. Girart, R. Rao, R. Estalella
We present 1.35 mm SMA observations around the low-mass Class 0 source IRAS 19156+1906, at the the center of the L723 dark cloud. We detected emission from dust as well as emission…
The Submillimeter Array Polarimeter
Daniel P. Marrone, Ramprasad Rao
We describe the Submillimeter Array (SMA) Polarimeter, a polarization converter and feed multiplexer installed on the SMA. The polarimeter uses narrow-band quarter-wave plates to g…
SMA Imaging of the Maser Emission from the H30 Radio Recombination Line in MWC349A
Jonathan Weintroub, James M. Moran, David J. Wilner +3
We used the Submillimeter Array to map the angular distribution of the H30 recombination line (231.9 GHz) in the circumstellar region of the peculiar star MWC349A. The resolutio…
Magnetic Fields in the Formation of Sun-Like Stars
Josep M. Girart, Ramprasad Rao, Daniel P. Marrone
We report high-angular-resolution measurements of polarized dust emission toward the low-mass protostellar system NGC 1333 IRAS 4A. We show that in this system the observed magneti…
The Flare Activity of SgrA*; New Coordinated mm to X-Ray Observations
A. Eckart, F. K. Baganoff, R. Schoedel +17
We report new simultaneous near-infrared/sub-millimeter/X-ray observations of the SgrA* counterpart associated with the massive 3-4x10**6 solar mass black hole at the Galactic Cent…