The BaR-SPOrt experiment: measuring the CMBP E-mode power spectrum from Dome C

The BaR­SPOrt experiment is designed to measure the E­ mode power spectrum of the Cosmic Microwave Background Polariza­ tion (CMBP) in the multipole range 50 < l < 1000. In the current configuration at 32 GHz it can explore up to to l = 400. Recent low frequency observations of the target region show that the synchrotron emission should not contamine the CMBP already at 32 GHz. A 6­ month observation of a 6 deg × 6 deg sky area during the polar night, in ideal environmental conditions, will allow the Italian­French collaboration to both measure the E--mode power spectrum with appropriate sensitiv­ ity and perform important tests of the anomalous dust emission. The BaR­SPOrt 32 GHz instrument, now under test and ready for opera­ tions by Spring 2005, is proposed for 1­2 years Winter operations at Dome C.