Abstract
The jet-like feature in the Crab Nebula discovered by van den Bergh1 shows a tubular structure of 75 × 45 arc s with strikingly well-collimated sharp parallel boundaries in the recent deep O III image obtained by Gull and Fesen2. I now report detection of radio emission at 20cm from this faint optical jet, in the Very Large Array (VLA) map obtained with a resolution of 15 × 15 arc s. The radio emission is extremely faint at less than 1% of the peak brightness within the nebula, and its detection was possible because of the high dynamic range in this VLA map. Its positional coincidence and structural similarity to the optical jet are remarkable. The emission at 20 cm appears to be nonthermal, with strong linear polarization of ∼30%.
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Velusamy, T. Radio detection of a jet in the Crab Nebula. Nature 308, 251–252 (1984). https://doi.org/10.1038/308251a0
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DOI: https://doi.org/10.1038/308251a0
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