Extragalactic nature of G227.1 + 1.0

Details Extragalactic nature of G227.1 + 1.0 Extragalactic nature of G227.1 + 1.0

Mar 1986

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1986natur.320...41c&link_type=abstract

Nature (ISSN 0028-0836), vol. 320, March 6, 1986, p. 41, 42.

Physics

7

Extragalactic Radio Sources, Radio Galaxies, Supernova Remnants, Elliptical Galaxies, Halos, Visible Spectrum

Scientific paper

Green and Gull have presented evidence that G227.1+1.0, one of the small-diameter radio sources in the Molonglo survey of Clark and Crawford, is a Crab-like supernova remnant. The authors report the discovery of a bright (V = 17.4), diffuse optical object within a few arc seconds of the centre of the radio source, but they present spectroscopic evidence that it is a luminous external galaxy at z = 0.073. The authors argue, furthermore, that the original radio emission represents not a supernova remnant, but a radio halo surrounding this galaxy, similar to that around M87.

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