A new radio map of the AD 1006 supernova remnant, G327.6 + 14.6

Astronomy and Astrophysics – Astronomy

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Astronomical Maps, Radio Spectra, Stellar Envelopes, Supernova Remnants, Emission Spectra, Spectral Resolution, Stellar Mass Ejection, Visible Spectrum, X Ray Spectra

Scientific paper

The radio remnant of the AD 1006 supernova has been mapped with resolution of ≡1 arcmin. The radio map and a recent X-ray map of similar resolution both show a bright ring of emission indicative of a shell structure. While the general appearance is remarkably similar, with both radio and X-ray emission strong in the same general portions of the ring, detailed comparisons show no precise correspondence of the brightest features. A major difference is that the X-ray emission is quite intense at the centre of the ring, where there is essentially no detectable radio emission. Optical observations conflict with the X-ray interpretation of a large ejected mass, high energy and no deceleration to date.

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