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An ISO variability study of the OVV 3C446
Richard Saxton (ISO)
We present the results of an ISO variability study of the Blazar
3C 446.
Observations were made between December 1996 and November 1997 at
7, 14, 25, 60 and 160 microns. Variability at the ca. 25% level has been
detected at 7 and 14 microns on a timescale of a few days. In the
longer
wavelengths the study is complicated by a barely-resolved second
source, of
similar strength to the blazar, which has almost certainly
contaminated
previously reported IRAS fluxes. A spectral-energy distribution,
constructed from these data plus contemporaneous optical data, shows that
the source was in a low-state during 1997.
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