Three unusual supernova remnants

Details Three unusual supernova remnants Three unusual supernova remnants

Aug 1979

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1979mnras.188..437m&link_type=abstract

Monthly Notices of the Royal Astronomical Society, vol. 188, Aug. 1979, p. 437-444.

Astronomy and Astrophysics

Astronomy

25

Milky Way Galaxy, Radio Sources (Astronomy), Supernova Remnants, Astronomical Coordinates, Astronomical Maps, Brightness Temperature, Stellar Spectra

Scientific paper

The radio sources G326.3-1.8, G348.5+0.1, and G348.7+0.3 have been observed with a resolution of 0.8 arcmin by using the 1.4-GHz Fleurs synthesis telescope and with 2.2 arcmin resolution at 14.7 GHz with the Parkes 64-m telescope. These observations, in combination with lower-resolution measurements over a wide frequency range, confirm that each source is a supernova remnant in the Galaxy. G348.5+0.1 (CTB 37A) and G348.7+0.3 (CTB 37B) are of similar size and brightness and, in projection, are separated by little more than their own diameter. 'Emerging' from the shell of G348.5+0.1 is a remarkable 'jet' - a feature not previously found among supernova remnants. G326.3-1.8 (MSH 15-56) is also unusual in that it possesses not only a shell typical of most supernova remnants but also a flat-spectrum central core which shows marked similarities to the Crab nebula.

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