Radio emission from a possible supernova remnant in the galaxy NGC 4449

Details Radio emission from a possible supernova remnant in the galaxy NGC 4449 Radio emission from a possible supernova remnant in the galaxy NGC 4449

Nov 1978

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1978apj...226l...5s&link_type=abstract

Astrophysical Journal, Part 2 - Letters to the Editor, vol. 226, Nov. 15, 1978, p. L5, L6.

Astronomy and Astrophysics

Astronomy

37

Astronomical Spectroscopy, Radio Sources (Astronomy), Supernova Remnants, H Lines, Luminous Intensity, Radio Emission, Radio Interferometers

Scientific paper

We present and discuss observations of a radio source identified with a possible supernova remnant (SNR) in the irregular galaxy NGC 4449. The identification with a SNR is based on a spectroscopic study of the optical counterpart by Balick and Heckman. The radio luminosity is 25 times the present luminosity of Cas A, which suggests that it may be substantially younger than Cas A.

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