Centaurus A, The Core of the Problem

S.J. Tingay, D.L. Jauncey, R.A. Preston, J.E. Reynolds, D.L. Meier, A.K. Tzioumis, D.L. Jones, E.A. King, S.W. Amy, J.D. Biggs, David Blair, D. Campbell-Wilson, R.W. Clay, M.E. Costa, P.G. Edwards, R.H. Ferris, R.G. Gough, P. Harbison, D.W. Hoard, P.A. Jones & 15 others J.E. Lovell, A.J. Kemball, W.B. Mcadam, G. Maccleod, P.M. Mcculloch, V. Migenes, D.W. Murphy, G.D. Nicolson, J.F.H. Quick, M.W. Sinclair, L. Skjerve, M.E. St John, T. Van Ommen, R.M. Wark, G.L. White

    Research output: Contribution to journalArticle

    Abstract

    The bright, peculiar elliptical galaxy Centaurus A (NGC 5128, PKS 1322-427) was one of the first extragalactic radio sources to be optically identified (Bolton et al. 1949). At a distance of 4 Mpc, Centaurus A is the closest active radio galaxy and affords the highest linear imaging resolution (1 mas approximate to 0.02 pc) and hence the best prospects for studying an active nucleus close to the central radio source. We present the results of multi-epoch, 8.4-GHz, very long baseline interferometry (VLBI), imaging observations of the nucleus made over the past three years. The nucleus possesses a core-jet structure where the inner portion of the jet shows apparent linear motion with a velocity substantially less than the speed of light.
    Original languageEnglish
    Pages (from-to)619-624
    JournalAustralian Journal of Physics
    Volume47
    Publication statusPublished - 1994

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    nuclei
    peculiar galaxies
    extragalactic radio sources
    active galaxies
    radio galaxies
    elliptical galaxies
    interferometry
    time measurement

    Cite this

    Tingay, S. J., Jauncey, D. L., Preston, R. A., Reynolds, J. E., Meier, D. L., Tzioumis, A. K., ... White, G. L. (1994). Centaurus A, The Core of the Problem. Australian Journal of Physics, 47, 619-624.
    Tingay, S.J. ; Jauncey, D.L. ; Preston, R.A. ; Reynolds, J.E. ; Meier, D.L. ; Tzioumis, A.K. ; Jones, D.L. ; King, E.A. ; Amy, S.W. ; Biggs, J.D. ; Blair, David ; Campbell-Wilson, D. ; Clay, R.W. ; Costa, M.E. ; Edwards, P.G. ; Ferris, R.H. ; Gough, R.G. ; Harbison, P. ; Hoard, D.W. ; Jones, P.A. ; Lovell, J.E. ; Kemball, A.J. ; Mcadam, W.B. ; Maccleod, G. ; Mcculloch, P.M. ; Migenes, V. ; Murphy, D.W. ; Nicolson, G.D. ; Quick, J.F.H. ; Sinclair, M.W. ; Skjerve, L. ; St John, M.E. ; Van Ommen, T. ; Wark, R.M. ; White, G.L. / Centaurus A, The Core of the Problem. In: Australian Journal of Physics. 1994 ; Vol. 47. pp. 619-624.
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    title = "Centaurus A, The Core of the Problem",
    abstract = "The bright, peculiar elliptical galaxy Centaurus A (NGC 5128, PKS 1322-427) was one of the first extragalactic radio sources to be optically identified (Bolton et al. 1949). At a distance of 4 Mpc, Centaurus A is the closest active radio galaxy and affords the highest linear imaging resolution (1 mas approximate to 0.02 pc) and hence the best prospects for studying an active nucleus close to the central radio source. We present the results of multi-epoch, 8.4-GHz, very long baseline interferometry (VLBI), imaging observations of the nucleus made over the past three years. The nucleus possesses a core-jet structure where the inner portion of the jet shows apparent linear motion with a velocity substantially less than the speed of light.",
    author = "S.J. Tingay and D.L. Jauncey and R.A. Preston and J.E. Reynolds and D.L. Meier and A.K. Tzioumis and D.L. Jones and E.A. King and S.W. Amy and J.D. Biggs and David Blair and D. Campbell-Wilson and R.W. Clay and M.E. Costa and P.G. Edwards and R.H. Ferris and R.G. Gough and P. Harbison and D.W. Hoard and P.A. Jones and J.E. Lovell and A.J. Kemball and W.B. Mcadam and G. Maccleod and P.M. Mcculloch and V. Migenes and D.W. Murphy and G.D. Nicolson and J.F.H. Quick and M.W. Sinclair and L. Skjerve and {St John}, M.E. and {Van Ommen}, T. and R.M. Wark and G.L. White",
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    Tingay, SJ, Jauncey, DL, Preston, RA, Reynolds, JE, Meier, DL, Tzioumis, AK, Jones, DL, King, EA, Amy, SW, Biggs, JD, Blair, D, Campbell-Wilson, D, Clay, RW, Costa, ME, Edwards, PG, Ferris, RH, Gough, RG, Harbison, P, Hoard, DW, Jones, PA, Lovell, JE, Kemball, AJ, Mcadam, WB, Maccleod, G, Mcculloch, PM, Migenes, V, Murphy, DW, Nicolson, GD, Quick, JFH, Sinclair, MW, Skjerve, L, St John, ME, Van Ommen, T, Wark, RM & White, GL 1994, 'Centaurus A, The Core of the Problem' Australian Journal of Physics, vol. 47, pp. 619-624.

    Centaurus A, The Core of the Problem. / Tingay, S.J.; Jauncey, D.L.; Preston, R.A.; Reynolds, J.E.; Meier, D.L.; Tzioumis, A.K.; Jones, D.L.; King, E.A.; Amy, S.W.; Biggs, J.D.; Blair, David; Campbell-Wilson, D.; Clay, R.W.; Costa, M.E.; Edwards, P.G.; Ferris, R.H.; Gough, R.G.; Harbison, P.; Hoard, D.W.; Jones, P.A.; Lovell, J.E.; Kemball, A.J.; Mcadam, W.B.; Maccleod, G.; Mcculloch, P.M.; Migenes, V.; Murphy, D.W.; Nicolson, G.D.; Quick, J.F.H.; Sinclair, M.W.; Skjerve, L.; St John, M.E.; Van Ommen, T.; Wark, R.M.; White, G.L.

    In: Australian Journal of Physics, Vol. 47, 1994, p. 619-624.

    Research output: Contribution to journalArticle

    TY - JOUR

    T1 - Centaurus A, The Core of the Problem

    AU - Tingay, S.J.

    AU - Jauncey, D.L.

    AU - Preston, R.A.

    AU - Reynolds, J.E.

    AU - Meier, D.L.

    AU - Tzioumis, A.K.

    AU - Jones, D.L.

    AU - King, E.A.

    AU - Amy, S.W.

    AU - Biggs, J.D.

    AU - Blair, David

    AU - Campbell-Wilson, D.

    AU - Clay, R.W.

    AU - Costa, M.E.

    AU - Edwards, P.G.

    AU - Ferris, R.H.

    AU - Gough, R.G.

    AU - Harbison, P.

    AU - Hoard, D.W.

    AU - Jones, P.A.

    AU - Lovell, J.E.

    AU - Kemball, A.J.

    AU - Mcadam, W.B.

    AU - Maccleod, G.

    AU - Mcculloch, P.M.

    AU - Migenes, V.

    AU - Murphy, D.W.

    AU - Nicolson, G.D.

    AU - Quick, J.F.H.

    AU - Sinclair, M.W.

    AU - Skjerve, L.

    AU - St John, M.E.

    AU - Van Ommen, T.

    AU - Wark, R.M.

    AU - White, G.L.

    PY - 1994

    Y1 - 1994

    N2 - The bright, peculiar elliptical galaxy Centaurus A (NGC 5128, PKS 1322-427) was one of the first extragalactic radio sources to be optically identified (Bolton et al. 1949). At a distance of 4 Mpc, Centaurus A is the closest active radio galaxy and affords the highest linear imaging resolution (1 mas approximate to 0.02 pc) and hence the best prospects for studying an active nucleus close to the central radio source. We present the results of multi-epoch, 8.4-GHz, very long baseline interferometry (VLBI), imaging observations of the nucleus made over the past three years. The nucleus possesses a core-jet structure where the inner portion of the jet shows apparent linear motion with a velocity substantially less than the speed of light.

    AB - The bright, peculiar elliptical galaxy Centaurus A (NGC 5128, PKS 1322-427) was one of the first extragalactic radio sources to be optically identified (Bolton et al. 1949). At a distance of 4 Mpc, Centaurus A is the closest active radio galaxy and affords the highest linear imaging resolution (1 mas approximate to 0.02 pc) and hence the best prospects for studying an active nucleus close to the central radio source. We present the results of multi-epoch, 8.4-GHz, very long baseline interferometry (VLBI), imaging observations of the nucleus made over the past three years. The nucleus possesses a core-jet structure where the inner portion of the jet shows apparent linear motion with a velocity substantially less than the speed of light.

    M3 - Article

    VL - 47

    SP - 619

    EP - 624

    JO - Australian Journal of Physics

    JF - Australian Journal of Physics

    SN - 0004-9506

    ER -

    Tingay SJ, Jauncey DL, Preston RA, Reynolds JE, Meier DL, Tzioumis AK et al. Centaurus A, The Core of the Problem. Australian Journal of Physics. 1994;47:619-624.