
%0 Journal Article
%A Leech, K.J. 
%A Saxton, R. 
%A Barr, P. 
%A Santos-Lleo, M. 
%A Jiminez-Bailon, E. 
%A Diaz, R. 
%A Ghosh, K. 
%A Soundararajapervmal, S. 
%T Optical to Far-IR Observations of 3C 446
%J Publications of the Astronomical Society of Australia
%D 2002/06/28
%V 19
%N 1
%P 152-154
%K BL Lacertae objects: individual &#40;3C 446&#41; &#8212; infrared: galaxies
%R https://doi.org/10.1071/AS01110
%U https://www.publish.csiro.au/paper/AS01110 
%X The OVV blazar 3C 446 was monitored over seven months in 1997 with ground based telescopes and instruments on ESA&#39;s Infrared Space Observatory &#40;ISO&#41;. The aim was to try to detect variations in the IR and see if these were correlated with optical variations. The object varied in the optical and near-IR during this period, but did not vary in the far-IR. Despite being a factor of ten weaker than in 1983, the optical-IR SED exhibited the same slope. The new far-IR observations from ISO allow us to determine the location of the turnover in the spectrum, caused by synchrotron self-absorption. It occurs just longwards of 100 &#956;m. 
