Measurement of a peak in the cosmic microwave background power spectrum from the North American test flight of boomerang

P. D. Mauskopf, P. R A Ade, P. De Bernardis, J. J. Bock, J. Borrill, A. Boscaleri, B. P. Crill, G. DeGasperis, G. De Troia, P. Farese, P. G. Ferreira, K. Ganga, M. Giacometti, S. Hanany, V. V. Hristov, A. Iacoangeli, A. H. Jaffe, A. E. Lange, A. T. Lee, S. MasiA. Melchiorri, F. Melchiorri, L. Miglio, T. Montroy, C. B. Netterfield, E. Pascale, F. Piacentini, P. L. Richards, G. Romeo, J. E. Ruhl, E. Scannapieco, F. Scaramuzzi, R. Stompor, N. Vlttorio

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Abstract

We describe a measurement of the angular power spectrum of anisotropies in the cosmic microwave background (CMB) at scales of 0°.3 to 5° from the North American test flight of the Boomerang experiment. Boomerang is a balloon-borne telescope with a bolometric receiver designed to map CMB anisotropies on a long-duration balloon flight. During a 6 hr test flight of a prototype system in 1997, we mapped more than 200 deg2 at high Galactic latitudes in two bands centered at 90 and 150 GHz with a resolution of 26′ and 16′.5 FWHM, respectively. Analysis of the maps gives a power spectrum with a peak at angular scales of 1° with an amplitude 70 μΚCMB.

Original languageEnglish (US)
Pages (from-to)L59-L62
JournalAstrophysical Journal
Volume536
Issue number2 PART 2
DOIs
StatePublished - Jun 20 2000

Keywords

  • Balloons
  • Cosmic microwave background
  • Cosmology: Observations
  • Instrumentation: Photometers
  • Methods: Data analysis
  • Telescopes

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