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High Dynamic Range Mapping of a Complex Radio Source – M87

Published online by Cambridge University Press:  03 August 2017

T.W.B. Muxlow ,
W. Junor ,
R.E. Spencer ,
R. Simon ,
J. Benson  and
M. Reid
T.W.B. Muxlow
Affiliation:
University of Manchester, Nuffield Radio Astronomy Laboratories, Jodrell Bank, Macclesfield, Cheshire, UK
W. Junor
Affiliation:
University of Manchester, Nuffield Radio Astronomy Laboratories, Jodrell Bank, Macclesfield, Cheshire, UK
R.E. Spencer
Affiliation:
University of Manchester, Nuffield Radio Astronomy Laboratories, Jodrell Bank, Macclesfield, Cheshire, UK
R. Simon
Affiliation:
University of Manchester, Nuffield Radio Astronomy Laboratories, Jodrell Bank, Macclesfield, Cheshire, UK
J. Benson
Affiliation:
University of Manchester, Nuffield Radio Astronomy Laboratories, Jodrell Bank, Macclesfield, Cheshire, UK
M. Reid
Affiliation:
University of Manchester, Nuffield Radio Astronomy Laboratories, Jodrell Bank, Macclesfield, Cheshire, UK

Extract

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The well known jet in M87 (Virgo A) has been extensively studied in the radio regime using conventional arrays with resultant resolutions in the range 0.22–1 arcsecond. We present here the results of a VLBI experiment to map the jet over its entire length (30 arcseconds) to high resolution. The observations were made in April 1984 at 1.67 GHz with a ‘World Array’ containing 18 VLBI telescopes. In addition, simultaneous observations were performed with the 6 station MERLIN array.

References

(1) Cornwell, T.J. & Wilkinson, P.N., 1983 ‘Indirect Imaging’, ed. Roberts, J.A., Cambridge University Press.Google Scholar
(2) Cornwell, T.J. & Wilkinson, P.N., 1981. Mon. Not. R. astr. Soc., 196, 1067.Google Scholar
(3) Biretta, J.A. Owen, F.O. & Hardee, P.E., 1983. Astrophys. J. 274, L27.Google Scholar