AAS 201st Meeting, January, 2003
Session 31. The Galactic Center and Its Environs
Oral, Monday, January 6, 2003, 2:00-3:30pm, 6AB

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[31.01] High Resolution Imaging of the Galactic Center at Low Frequencies

M.E. Nord (Naval Research Laboratory / University of New Mexico), C.L. Brogan (National Radio Astronomy Observatory), S. Hyman (Sweet Briar College), T.J.W. Lazio, N.E. Kassim (Naval Research Laboratory), N. Duric (University of New Mexico)

We present a wide field, high resolution image of the Galactic Center region at 327 MHz. With a resolution of 7'' and an RMS noise of ~ 1.7 mJy beam-1, this image represents a significant increase in resolution and in sensitivity over previously published VLA images at comparable frequencies.

Using this new image, we have detected Nearly 100 previously unknown radio sources, at least a dozen non-thermal filament candidates which can be used to trace the Galactic Center magnetic field, A radio transient, and several steep spectrum sources that are pulsar candidates.

A low resolution version of a simultaneously obtained image at 74 MHz will also be presented, and will be reported on in further detail in a separate talk by C.L. Brogan. Further discussion of non-thermal filament morphology and orientation will be discussed in a seperate talk by T.N. LaRosa.

Basic research in radio astronomy at the Naval Research Laboratory is supported by the Office of Naval Research. The National Radio Astronomy Observatory is a facility of the National Science Foundation operated under cooperative agreement by Associated Universities,Inc.

The author(s) of this abstract have provided an email address for comments about the abstract: nord@nrl.navy.mil

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