  We present near infrared high-precision photometry for eight transiting hot
Jupiters observed during their predicted secondary eclipses. Our observations
were carried out using the staring mode of the WIRCam instrument on the
Canada-France-Hawaii Telescope (CFHT). We present the observing strategies and
data reduction methods which delivered time series photometry with statistical
photometric precisionas low as 0.11%. We performed a Bayesian analysis to model
the eclipse parameters and systematics simultaneously. The measured
planet-to-star flux ratios allowed us to constrain the thermal emission from
the day side of these hot Jupiters, as we derived the planet brightness
temperatures. Our results combined with previously observed eclipses reveal an
excess in the brightness temperatures relative to the blackbody prediction for
the equilibrium temperatures of the planets for a wide range of heat
redistribution factors. We find a trend that this excess appears to be larger
for planets with lower equilibrium temperatures. This may imply some additional
sources of radiation, such as reflected light from the host star and/or thermal
emission from residual internal heat from the formation of the planet.
