VLBI Observations of the double QSO, 0957 + 561 A, B

R. W. Porcas, R. S. Booth, I. W A Browne, D. Walsh, P. N. Wilkinson

    Research output: Contribution to journalArticlepeer-review


    Walsh et al.1 originally suggested that the double QSO 0957 + 561 A, B might be images of the same object formed by a gravitational lens because of their remarkably similar optical spectra. Additional optical spectral data2 strengthen the evidence for a gravitational lens. Radio data at 5 GHz have shown a complex structure3,4. There are compact (
    Original languageEnglish
    Pages (from-to)385-386
    Number of pages1
    Issue number5737
    Publication statusPublished - 1979


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