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Extended Structure in High-Redshift Radio Sources

  • P. J. Duffett-Smith (a1) and A. Purvis (a1)

Extract

We have compared measurements of several hundred 3C and 4C radio sources at large redshifts to investigate how radio-source structure changes over a factor of 5–10 in luminosity. Our results show that for z ≳ 0.6:

  1. (i)most sources (both 3C and 4C) have hotspots about 3.5 kpc in size (Ho = 50 km s−1 Mpc−1, Ω = 1);
  2. (ii) lower-luminosity sources (bottom of 4C) have less-extended outer lobes.

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Copyright

References

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Duffett-Smith, P.J.: 1980, Mon. Not. R. astr. Soc., 192, pp 3339.
Duffett-Smith, P.J., Purvis, A. & Hewish, A.: 1980, Mon. Not. R. astr. Soc., 190, pp 891901.
Readhead, A.C.S., Kemp, M.C. & Hewish, A.: 1978, Mon. Not. R. astr. Soc., 185, pp 207225.
Wall, J.V., Pearson, T.J. & Longair, M.S.: 1980, Mon. Not. R. astr. Soc., 193, pp 683706.

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