We present hybrid maps of the A and B images of 0957+561 from each of four
sessions of 6 cm VLBI observations that span the six-year interval 1987-1993.
The inner- and outer-jets are clearly detected, and confirm the structures
reported previously. There is no evidence of change in the separation between
the core and inner-jet components, so the prospect of measuring the time delay
using differential proper motions is not promising. The flux density in the
core of each image peaked between 1989 and 1992. From the variation in these
flux densities, we obtain a time-delay estimate of $\sim$1 yr.Comment: 11 pages, 3 PostScript figures, uses AAS LaTex style aaspp.sty, To
appear in AJ (1995.12), Submitted 1995.07.06, Accepted 1995.08.1
scite is a Brooklyn-based organization that helps researchers better discover and understand research articles through Smart Citations–citations that display the context of the citation and describe whether the article provides supporting or contrasting evidence. scite is used by students and researchers from around the world and is funded in part by the National Science Foundation and the National Institute on Drug Abuse of the National Institutes of Health.