G127.1 + 0.5 - A remarkable supernova remnant centred on a very compact radio source

Astronomy and Astrophysics – Astronomy

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Microwave Emission, Radio Sources (Astronomy), Stellar Spectra, Supernova Remnants, Flux Density, Galactic Radiation, Radiation Spectra, Supernovae, Telescopes, X Ray Sources

Scientific paper

A synthesis map obtained with the Cambridge Half-mile telescope shows that the galactic radio source G127.1 + 0.5 has a shell structure; in conjunction with other data we conclude that it is probably an old supernova remnant. Near the center of the shell the map shows a compact radio source whose angular size, measured at 15 GHz with the 5-km Cambridge telescope, is less than 0.15 arcsec, and whose spectrum is very flat. We suggest that the compact source may be the stellar remnant of the supernova.

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