Help | Comment | NED Home

   NED object is 3C 020; Reference is 1981MNRAS.195..261L

   Figs 1-40 The contour interval for each source is indicated by the number
 beside the letters 'CI'; this is the flux density in mJy of an unresolved
 source which would produce a change of 1 contour. Except where noted in the
 figure caption, contours are plotted at +- 1, +- 2,..., times the contour
 interval; negative contours are shown dashed. For some sources, two or three
 contour intervals have been used: for example, -'CIx,y' means that the contour
 interval is x mJy up to the level y and y mJy thereafter.

Back to NED Home