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M.J. Devlin, R. Caldwell (University of Pennsylvania), W.B. Dorwart, T. Herbig, A.D. Miller, M.R. Nolta, L.A. Page (Princeton University), J. Puchalla (University of Pennsylvania), E. Torbet, R.T. Tran (Princeton University)
We report on a measurement of the angular spectrum of the CMB between l\approx 100 and l\approx 400 made at 144 GHz from Cerro Toco in the Chilean altiplano. When the new data are combined with previous data at 30 and 40 GHz, taken with the same instrument observing the same section of sky, we find: 1) a rise in the angular spectrum to a maximum with \delta Tl \approx 85~\muK at l\approx 200 and a fall at l>300, thereby localizing the peak near l\approx 200; and 2) that the anisotropy at l\approx 200 has the spectrum of the CMB.
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