AAS 200th meeting, Albuquerque, NM, June 2002
Session 44. The Milky Way: Center and Halo
Display, Tuesday, June 4, 2002, 10:00am-6:30pm, SW Exhibit Hall

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[44.06] High Resolution, Wide Field Imaging of the Galactic Center at Low Frequencies

M.E. Nord (NRL / UNM), C. Brogan (NRAO), S. Hyman, G. Denn (Sweet Briar), T.J.W. Lazio, N.E. Kassim (NRL), N. Duric (UNM), T. LaRosa (Kennesaw St.)

Recent advances in observational and computational techniques have brought about a renaissance in low frequency radio astronomy. The NRL-NRAO 74 and 330 MHz VLA systems have enabled the first high-resolution (25 and 6 arcseconds, respectively), high-dynamic range imaging at these frequencies. Similar images at complimentary frequencies are also now starting to emerge from the GMRT.

We present multi-configuration VLA images of the Galactic center. These images are being used to: \begin{itemize} \item Identify new radio transients toward the Galactic center (Hyman et al. 2002, AJ, 123, 1497); \item Probe the \emph{radial} distribution of Galactic cosmic rays toward the Galactic center; \item Search for new non-thermal filaments; \item Search for Galactic center pulsars; and \item Constrain HII region physical parameters \end{itemize}

Basic research in radio astronomy at the Naval Research Laboratory is supported by the Office of Naval Research.

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Bulletin of the American Astronomical Society, 34
© 2002. The American Astronomical Soceity.