COCHISE: A 2.6M MILLIMETRIC TELESCOPE FOR

COCHISE: A 2.6M MILLIMETRIC TELESCOPE FOR COSMOLOGICAL OBSERVATIONS FROM
CONCORDIA, ANTARCTICA
L. Sabbatini1, G. Dall Oglio1, L. Pizzo1, F. Cavaliere2, A. Miriametro3
1 - Dip. Fisica, Universit di Roma Tre, Rome, Italy
2 - Dip. Fisica, Universit di Milano, Milano, Italy
3 - Dip. Fisica, Sapienza Universit di Roma, Rome, Italy
[email protected]
COCHISE is a 2.6 meter millimetric telescope devoted to site testing and cosmological observations. It has been
installed in Dome C, Antarctica, during last two summer campaigns (January 2007 January 2008). It is the biggest
telescope installed since now in Dome C.
We present the main characteristics of the telescope, the phases of the installation and the technological aspects related
to the servicing of this kind of system.
The telescope is equipped with a defrosting system for the primary mirror, realized in collaboration with CEA (Saclay);
this system consists of three different methods, based on conduction, convection and radiation. We present the results of
the first tests of this system.