A new supernova remnant over the Galactic Centre

Astronomy and Astrophysics – Astronomy

Scientific paper

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Ism: Individual: G0.33+0.04, Supernova Remnants, Galaxy: Centre, Radio Continuum: General

Scientific paper

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 favour an interpretation that it 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.

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