Two X-ray supernova remnants - G296.1 - 0.7 and 1E 1149.4 - 6209

Details Two X-ray supernova remnants - G296.1 - 0.7 and 1E 1149.4 - 6209 Two X-ray supernova remnants - G296.1 - 0.7 and 1E 1149.4 - 6209

Aug 1981

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1981apj...248l..17m&link_type=abstract

Astrophysical Journal, Part 2 - Letters to the Editor, vol. 248, Aug. 15, 1981, p. L17-L21.

Astronomy and Astrophysics

Astronomy

15

Galactic Evolution, Radio Sources (Astronomy), Supernova Remnants, X Ray Sources, Astronomical Maps, Fourier Transformation, Nebulae

Scientific paper

Using the imaging X-ray detectors on the Einstein Observatory, what appear to be two overlapping galactic supernova remnants are discovered, one of which is clearly identified with the previously cataloged radio remnant G296.1-0.7. The other feature has no radio or optical counterpart. It is a nearly complete ring with a diameter of 20-25 arcmin, designated 1E 1149.4-6209. Because of its morphology, because there is evidence for supernova events in the vicinity, and because there seems to be no plausible alternative, 1E 1149.4-6209 is classified as a supernova remnant. This remnant and others like it, which may be found first in X-rays rather than radio or optical waves, may have important implications regarding the evolution of supernova remnants and the rate of supernovae in our Galaxy.

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