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Radio and X-ray study of Cygnus A*

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Abstract

We present a comparative analysis of 5 GHz VLA and 200 ks Chandra ACIS-I image. In the 5 GHz image the familiar jet and much weaker counterjet are seen, which bend as the jet propagates towards the hotspots. Furthermore, where the lobe detected in 5 GHz emission starts to interact with the jet, we see that the jet “threads”. In the 0.2–10 keV X-ray image we do not detect the jet, but do detect a relic of the counterjet.

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References

  • Bellamy, M.J., Tadhunter, C.N.: A giant molecular cloud falling through the heart of Cygnus A: clues to the triggering of the activity. Mon. Not. R. Astron. Soc. 353, 105–112 (2004)

    Article  ADS  Google Scholar 

  • Brunetti, G., Cappi, M., Setti, G., Feretti, L., Harris, D.E.: Anisotropic inverse Compton scattering in powerful radio galaxies: the case of 3C 295. Astron. Astrophys. 372, 755–767 (2001)

    Article  ADS  Google Scholar 

  • Canalizo, G., Max, C., Whysong, D., Antonucci, R., Dahm, S.E.: Adaptive optics imaging and spectroscopy of Cygnus A, I: evidence for a minor merger. Astrophys. J. 597, 823–831 (2003)

    Article  ADS  Google Scholar 

  • Carilli, C.L., Perley, R.A., Dreher, J.W., Leahy, J.P.: Multifrequency radio observations of Cygnus A—spectral aging in powerful radio galaxies. Astrophys. J. 383, 554–573 (1991)

    Article  ADS  Google Scholar 

  • Carilli, C., Perley, R., Bartel, N., Dreher, J.: The jets in Cygnus A: from pc- to kpc-scales. Cygnus A—Study of a Radio Galaxy, pp. 76–+ (1996)

  • Dickey, J.M., Lockman, F.J.: H I in the galaxy. Annu. Rev. Astron. Astrophys. 28, 215–261 (1990)

    Article  ADS  Google Scholar 

  • Hardcastle, M.J., Croston, J.H.: The Chandra view of extended X-ray emission from Pictor A. Mon. Not. R. Astron. Soc. 363, 649–660 (2005)

    ADS  Google Scholar 

  • Kataoka, J., Edwards, P., Georganopoulos, M., Takahara, F., Wagner, S.: Chandra detection of hotspot and knots of 3C 303. Astron. Astrophys. 399, 91–97 (2003)

    Article  ADS  Google Scholar 

  • Kraft, R.P., Forman, W.R., Jones, C., Murray, S.S., Hardcastle, M.J., Worrall, D.M.: Chandra observations of the X-ray jet in Centaurus A. Astrophys. J. 569, 54–71 (2002)

    Article  ADS  Google Scholar 

  • Ledlow, M.J., Owen, F.N., Miller, N.A.: The cluster of galaxies surrounding Cygnus A, II: new velocities and a dynamic model. Astron. J. 130, 47–54 (2005)

    Article  ADS  Google Scholar 

  • Marshall, H.L., Miller, B.P., Davis, D.S., Perlman, E.S., Wise, M., Canizares, C.R., Harris, D.E.: A high-resolution X-ray image of the jet in M87. Astrophys. J. 564, 683–687 (2002)

    Article  ADS  Google Scholar 

  • Owen, F.N., Ledlow, M.J., Morrison, G.E., Hill, J.M.: The cluster of galaxies surrounding Cygnus A. Astrophys. J. 488, L15 (1997)

    Article  ADS  Google Scholar 

  • Tadhunter, C., Marconi, A., Axon, D., Wills, K., Robinson, T.G., Jackson, N.: Spectroscopy of the near-nuclear regions of Cygnus A: estimating the mass of the supermassive black hole. Mon. Not. R. Astron. Soc. 342, 861–875 (2003)

    Article  ADS  Google Scholar 

  • Wilson, A.S., Young, A.J., Shopbell, P.L.: Chandra observations of Cygnus A: magnetic field strengths in the hot spots of a radio galaxy. Astrophys. J. 544, L27–L30 (2000)

    Article  ADS  Google Scholar 

  • Young, A.J., Wilson, A.S., Terashima, Y., Arnaud, K.A., Smith, D.A.: A Chandra X-ray study of Cygnus A, II: the nucleus. Astrophys. J. 564, 176–189 (2002)

    Article  ADS  Google Scholar 

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Correspondence to Katrien C. Steenbrugge.

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* This paper has previously been published in Astrophysics and Space Science, vol. 310:3–4.

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Steenbrugge, K.C., Blundell, K.M. Radio and X-ray study of Cygnus A* . Astrophys Space Sci 311, 323–327 (2007). https://doi.org/10.1007/s10509-007-9651-0

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  • DOI: https://doi.org/10.1007/s10509-007-9651-0

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