A New Supernova Remnant Over The Galactic Centre

N. E. Kassim(1), and D. A. Frail(2)

(1) Code 7213, Naval Research Laboratory, Washington, DC, 20375-5351 USA
(2) National Radio Astronomy Observatory, Socorro, New Mexico, 87801 USA

Paper: accpeted for MNRAS (Letters)

Weblink (Image): http://rsd-www.nrl.navy.mil/7214/weiler/dragonfarm.html


Improved images and a newly determined spectrum from 80 MHz to 15 GHz have clarified the nature of the radio source G0.33+0.04 at the Galactic Centre. Its non-thermal spectral index and its shell-like morphology favor an interpretation that this is a supernova remnant. Furthermore, the absorption characteristics of the continuum spectrum at the lowest frequencies and its elongation along the plane suggest that, like Sgr A East, it is in physical proximity to the Galactic Centre (see http://rsd-www.nrl.navy.mil/7214/weiler/dragonfarm.html for an image)

Preprints available from the authors at nkassim@shimmer.nrl.navy.mil , or the raw TeX (no figures) if you click here.

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