Cosmic Microwave Background Anisotropy Measurements with the OVRO 5.5m Telescope
Session 118 -- Cosmic Micorwave Background
Oral presentation, Thursday, 12, 1995, 2:00pm - 3:30pm

## [118.04] Cosmic Microwave Background Anisotropy Measurements with the OVRO 5.5m Telescope

The results of an experiment to measure anisotropy in the cosmic microwave background on arcminute scales are presented. These observations were conducted at the Owens Valley Radio Observatory using the new 5.5m telescope (32GHz, $7.\mkern-4mu^\prime3$ beam, $22.\mkern-4mu^\prime16$ beamthrow) and have reached a noise level of $27\,\mu\mbox{K}$ in each of 36 interlocked fields. Fluctuations of up to $86\,\mu\mbox{K}$ over noise are detected in the RING5M experiment, much of which is most likely attributable to contamination by point sources (radio galaxies and quasars), and by synchrotron emission from the galaxy.