The GEM 408 MHz Receiver System
GEM 408 MHz Rationale
The frequency 408 MHz was chosen because the Galaxy produces
a large (of order 100 K) emission signal at that frequency.
The only full sky radio map exisiting is at 408 MHz
and this provides both a test of our technique
and a successful collection of data at 408 MHz
could make the existing Haslam et al. survey much more valuable
by providing an independent calibration and cross-check.
A GEM success could lead to a residual destriping of these data
which we have found to be very good thus far.
Reports on the 408 MHz Receiver and Feed
The project has been supported in part by the US Department of Energy,
by the US National Science Foundation, by the Progetto Italia Antartide,
by INPE-Brazil, and by Colciencias of Colombia.
Some of the publications to date are on the following
GEM publication list.
408 MHz GEM maps
Return to the Smoot Group
page for a complete description of Dr. Smoot's group's research activities.