445
The tranamission measunements vere carried out successfully
to H -6.5 seconis,
The latter corresponis to the last available
light pulse as the lipht source was extinguished on the H-5
second signal. '
RISCUSSION
The thermel data appears to be very interesting, in particular,
in the infra-red region; thit is, the duration of the thermal pulse
was about 5 seconis as compare’ to the blue region which had a duTatiua of avour 2.5-3 seconds,
This 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
fireball at later times are still oapable of emitting significant
amounts of ratiation in infra-rel regions of 1-3 aicrons.
ABLE COPY