EP
.
oY
The transmission measurements were carried out successfully
to H -6.5 seconds.
The latter corresponis to the last avatlable
light pulse as the light source was extinguished on the H-5
second signal.
DISCUSSION
The thermal data appears to be very interesting, in particular,
-
in the infra-red region; that is, the duration of the thermal pulse
was about Eo@ = compared to the blue region which had a du-
ration of aboutSh: > difference has not appeared on
broad band calorimeters as their sensitivity is considerably lower
than that of the spectrometer system employed here,
Further, this
lends credence to the theory that the hot shocked gases within the
q
fireball at later times are still capable of emitting significant
amounts of radiation in infra-red regions of 1-3 microns.
MN
Cop