3C31 = B0104+321

3C31 L Band Gradient (click to download larger image)

Data of Robert Laing (ESO), Alan Bridle and Richard Perley (NRAO), Paola Parma, Luigina Feretti, Gabriele Giovannini and Matteo Murgia (Bologna), published in Monthly Notices of the Royal Astronomical Society, 386, 657-672 (2008).

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Last updated: 12 June 2014, 14:32 EDT