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VLBI imaging with an angular resolution of 100 microarcseconds

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Abstract

The investigation of the nuclei of galaxies and quasars has been central to modern astronomy. The application of the technique of very-long-baseline interferometry (VLBI) to such sources has allowed the mapping of their angular radio brightness distributions and the analysing of their temporal changes. Many radio galaxies and quasars consist of a compact core, or centre of activity, and collimated jets of material ejected from the core with relativistic velocities1. Of particular interest are the brightness distributions and kinematics of the cores of such sources, because they may contain a supermassive object (SMO), possibly a black hole2 (but see ref. 3 for an alternative view), with a mass of ∼109 M ⊙(ref. 4) and a Schwarzschild radius of ∼3 x l014cm. We present here global VLBI observations of 11 radio sources at a wavelength of 7 mm, including a map of the brightness distribution of the active galactic nucleus in 3C84. This map has an angular resolution of 100 microarcseconds, unsurpassed in an image of a celestial object.

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References

  1. Zensus, J. A. & Pearson, T. J. IAU Symp. No. 129 (eds Reid, M. J. & Moran, J. M.) 7–16 (Reidel, Dordrecht, 1988).

  2. Rees, M. J. A. Rev. Astr. Astrophys. 22, 471–506 (1984).

    Article  ADS  CAS  Google Scholar 

  3. Kundt, W. Astrophys. Space Sci. 62, 335–345 (1979).

    Article  ADS  CAS  Google Scholar 

  4. Begelman, M. C., Blandford, R. D. & Rees, M. J. Rev. mod. Phys. 56, 255–351 (1984).

    ADS  Google Scholar 

  5. Camenzind, M. Astr. Astrophys. 156, 137–151 (1986).

    ADS  Google Scholar 

  6. Jones, T. W., O'Dell, S. L. & Stein, W. A. Astrophys. J. 188, 353–368 (1974).

    Article  ADS  CAS  Google Scholar 

  7. Kühr, H., Liebert, J. V., Strittmatter, P. A., Schmidt, G. D. & Mackay, C. Astrophys. J. 275, L33–L37 (1983).

    Article  ADS  Google Scholar 

  8. Bartel, N., Herring, T. A., Ratner, M. I., Shapiro, I. I. & Corey, B. E. Nature 319, 733–738 (1986).

    Article  ADS  Google Scholar 

  9. Bartel, N. et al. Astrophys. J. 262, 556–563 (1982).

    Article  ADS  CAS  Google Scholar 

  10. Bartel, N. et al. Astrophys. J. 323, 505–515 (1987).

    Article  ADS  Google Scholar 

  11. Levy, G. S. et al. Science 234, 187–189 (1986).

    Article  ADS  CAS  Google Scholar 

  12. Kardashev, N. S. & Slysh, V. I. IAU Symp. No. 129 (eds Reid, M. J. & Moran, J. M.) 433–440 (Reidel, Dordrecht, 1988).

  13. Schilizzi, R. T. IAU Symp. No. 129 (eds Reid, M. J. & Moran, J. M.) 441–446 (Reidel, Dordrecht, 1988).

  14. Hirabayashi, H. IAU Symp. No. 129 (eds Reid, M. J. & Moran, J. M.) 449–456 (Reidel, Dordrecht, 1988).

  15. Readhead, A. C. S. et al. Nature 303, 504–506 (1983).

    Article  ADS  Google Scholar 

  16. Backer, D. C. et al. Astrophys. J. 322, 74–79 (1987).

    Article  ADS  Google Scholar 

  17. Rogers, A. E. E. et al. Science 219, 51–54 (1983).

    Article  ADS  CAS  Google Scholar 

  18. Dhawan, V. et al. Bull. Am. astr. Soc. 18, 41.06 (1986).

  19. Marcaide, J. M. et al. in Proc. ESO Workshop on (Sub)Millimeter Astronomy (eds Shaver, P. A. & Kjär, K.) 157–167 (1985).

    Google Scholar 

  20. Dhawan, V. thesis, Massachusetts Inst. Technol. (1987).

  21. Lynds, R. Astrophys. J. Lett. 159, L151–L154 (1970).

    Article  ADS  Google Scholar 

  22. Rothschild, R. E., Baity, W. A., Marscher, A. P. & Wheaton, W. A. Astrophys. J. Lett. 243, L9–L12 (1981).

    Article  ADS  Google Scholar 

  23. Kingham, K. A. & O'Connell, R. W. Astr. J. 84, 1537–1541 (1979).

    Article  ADS  CAS  Google Scholar 

  24. Lebofsky, M. J. & Rieke, G. H. Nature 284, 410–412 (1980).

    Article  ADS  CAS  Google Scholar 

  25. Epstein, E. E., Fogarty, W. G., Mottmann, J. & Schneider, E. Astrophys. J. 87, 449–461 (1982).

    Google Scholar 

  26. O'Dea, C. P., Dent, W. A. & Balonek, T. J. Astrophys. J. 278, 89–95 (1984).

    Article  ADS  Google Scholar 

  27. Noordam, J. E. & de Bruyn, A. G. Nature 299, 597–600 (1982).

    Article  ADS  Google Scholar 

  28. Pedlar, A., Booler, R. V. & Davis, R. D. Mon. Not. R. astr. Soc. 203, 667–675 (1983).

    Article  ADS  Google Scholar 

  29. Romney, J. D., Alef, W., Pauliny-Toth, I. I. K. & Preuss, E. IAU Symp. No. 97 (eds Heeschen, D. S. & Wade, C. M.) 291–292 (Reidel, Dordrecht, 1982).

  30. Readhead, A. C. S., Hough, D. H., Ewing, M. S., Walker, R. C. & Romney, J. D. Astrophys. J. 265, 107–131 (1983).

    Article  ADS  Google Scholar 

  31. Marr, J. M., Backer, D. C., Wright, M. C. H., Readhead, A. C. S. & Moore, R. IAU Symp. No. 129 (eds Reid, M. J. & Moran, J. M.) 91–92 (Reidel, Dordrecht, 1988).

  32. Lawrence, C. R. et al. Astrophys. J. 296, 458–460 (1985).

    Article  ADS  CAS  Google Scholar 

  33. Johansson, J. M., Elgered, G. & Rönnäng, B. O. IAU Symp. No. 129 (eds Reid, M. J. & Moran, J. M.) 547–548 (Reidel, Dordrecht, 1988).

  34. Kellermann, K. I. & Thompson, A. R. Science 229, 123–130 (1985).

    Article  ADS  CAS  Google Scholar 

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Authors and Affiliations

  1. Harvard-Smithsonian Center for Astrophysics, Cambridge, Massachusetts, 02138, USA

    N. Bartel, V. Dhawan & I. I. Shapiro

  2. Massachusetts Institute of Technology, Cambridge, Massachusetts, 02138, USA

    V. Dhawan & B. F. Burke

  3. Max-Planck-Institut für Radioastronomie, Bonn, FRG

    T. Krichbaum, D. A. Graham, I. I. K. Pauliny-Toth, J. M. Marcaide & A. Witzel

  4. NEROC, Haystack Observatory, Westford, Massachusetts, 01886, USA

    A. E. E. Rogers

  5. Onsala Space Observatory, S-430 34, Onsala, Sweden

    B. O. Rönnäng & R. S. Booth

  6. Naval Research Laboratory, Washington, DC, 20375, USA

    J. H. Spencer & K. J. Johnston

  7. Nobeyama Radio Observatory, Nobeyama, Japan

    H. Hirabayashi, M. Inoue & M. Morimoto

  8. California Institute of Technology, Pasadena, California, 91125, USA

    C. R. Lawrence & A. C. S. Readhead

Authors
  1. N. Bartel
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  2. V. Dhawan
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  3. T. Krichbaum
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  4. D. A. Graham
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  5. I. I. K. Pauliny-Toth
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  6. A. E. E. Rogers
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  7. B. O. Rönnäng
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  8. J. H. Spencer
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  9. H. Hirabayashi
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  10. M. Inoue
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  11. C. R. Lawrence
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  12. I. I. Shapiro
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  13. B. F. Burke
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  14. J. M. Marcaide
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  15. K. J. Johnston
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  16. R. S. Booth
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  17. A. Witzel
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  18. M. Morimoto
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  19. A. C. S. Readhead
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Bartel, N., Dhawan, V., Krichbaum, T. et al. VLBI imaging with an angular resolution of 100 microarcseconds. Nature 334, 131–135 (1988). https://doi.org/10.1038/334131a0

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  • DOI: https://doi.org/10.1038/334131a0

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